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Directional Control
Valve K170LSProportional Valve for Systemswith Variable Pump Displacement
Catalogue HY17-8557/UK
May, 2003
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Directional Control ValvesK170LS
Parker reserves the right to modify products without prior notice.Typical curves and diagrams are used in this catalog.Even though the catalog is revised and updated continuously,there is always the possibility of errors. For more detailed infor-
mation about the products, please contact Parker.
This catalog has been designed to give a br ief overview ofK170LS valves, and to make it easy for you to study and choosefrom the different options available, so that we may customizeyour valve in accordance with your wishes. In addition to general
information and basic technical data, the catalog therefore con-tains descriptions of the options available for various so-calledfunction areas of the valve.
Each function area is given as a subheading, followed by abrief description. When options are available for a function area,the subheading is followed by an Item number in brackets, e.g.Pressure relief valve [16]. This is followed by a series of coded
options, e.g. PA1, Y1,together with a brief description of whateach code represents. Alternatively, one or more pressure, flowor voltage options are given.
On page 7 is a general circuit diagram showing the basic
function areas in a K170LS valve and the item numbers that rep-resent them. Naturally, the same item numbers are used for therespective function areas in all sub-circuit diagrams that appearelsewhere in the catalog. Please note that, unless stated other-wise, all sections and views of the valves have been drawn asseen from the inlet section.
The K170LS directional control valve can be easily specified us-ing Parker computer programme. This means the customer canoptimize his valve specification to give the best performance forhis application and specific hydraulic system.
Once the demands placed on each individual function havebeen specified the computer will select the valve design requiredto give optimum performance. The computer also produces com-plete documentation for your valve, in the form of a detailedspecification and hydraulic circuit diagram.
The computer also generates a unique identification number foreach valve type and customer. The number is then stamped intothe I.D. plate of each valve. The specification of your valve isthen recorded by Parker, so that exact identification of the prod-uct can be made at any time in the future to facilitate repeat or-dering or servicing.
Our experienced engineers have in-depth knowledge of thedifferent types of hydraulic system and the ways in which theywork. They are at your disposal to offer qualified advice on thebest system for the desired combination of functions, control
Catalog layout
How to order your valve
Early consultation with Parker saves time and moneycharacteristics and economic demands. By consulting Parkerearly in the project planning stage, you are assured of a compre-hensive hydraulic system that gives your machine the best pos-sible operating and control characteristics.
Conversion factors
1 kg = 2.2046 lb
1 N = 0.22481 lbf
1 bar = 14.504 psi
1 l = 0.21997 UK gallon
1 l = 0.26417 US gallon
1 cm3 = 0.061024 in3
1 m = 3.2808 feet
1 mm = 0.03937 in
9/5 C + 32 = F
Catalogue HY17-8557/UK
Catalogue Information
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Directional Control ValvesK170LS
Catalogue HY17-8557/UK
Contents
Table of contents Page
General Information .................................................................................4Technical Data..........................................................................................6Hydraulic circuit diagram .......................................................................... 7
Inlet Section .............................................................................................8Internal pilot pressure supply [12] .......................................................8Pilot pressure [13] ...............................................................................8Pilot filter [14] ......................................................................................8Load signal system .............................................................................9Inlet section type [15] ..........................................................................9Pressure relief valve [16].....................................................................9Pressure setting [17] .........................................................................10Tank connection T2 [24] .................................................................... 10Counterpressure valve ......................................................................10Tank connection T1 [25] .................................................................... 10Pump connection P1 [26] ..................................................................10
End Section ............................................................................................ 11End section [30] ................................................................................11LS-connection [31] ............................................................................11Pump connection P2 [32] ..................................................................11Tank connection T3 [34] .................................................................... 11Separate tank connection for the pilot circuit [40] .............................11
Spool Section ......................................................................................... 12Spool section with actuator type PC ................................................. 12Spool actuators [50] ..........................................................................13
PC, PCH Hydraulic spool actuators .............................................13EC, ECH, EB, EBH Electro-hydraulic spool actuator ...................14Electro-hydraulic on-off spool actuator ........................................14ECH, EBH EC, EB .......................................................................14
Pilot restrictor [55 A,B] .................................................................15Cable connector [56] ....................................................................15
Spool selection .................................................................................. 16Spool options ............................................................................... 16Spool function [60] .......................................................................16Flow requirement [61 A,B] ...........................................................16Area relationship [62] ...................................................................17Load characteristics [63] ..............................................................17Force feedback [64 A,B] ............................................................... 17Pressure compensator and/or load-hold check valve [66] ...........18Pressure compensators ...............................................................18Damping of pressure compensator [67] .......................................19
Spool designation [69] .................................................................19Flow settings [72] .........................................................................19
Feed reduction valves [75] ................................................................ 19Setting of feed reduction in the A-port [75A] .....................................19Setting of feed reduction in the B-port [75B] .....................................19Port relief and/or anti-cavitation valves [76 A,B] ...............................20Separate anti-cavitation valve in service ports ................................. 20Anti cavitation characteristics ............................................................ 20Function block [90-99] ....................................................................... 21Connectors ........................................................................................ 21
Dimensional drawing .............................................................................. 22
[00] refers to item numbers in the customer specification.
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Directional Control ValvesK170LS
K170LS with built-in hydraulic, electro-hydraulic, or combinedmanual and electro-hydraulic spool actuator. In this example, thevalve is not equipped with a copying function for the load signal(LS).
The K170LS valve connected to a L90LS valve. The L90LS valveis used for functions which requires less flow. This gives priceadvantages as well as operational advantages. The valve in thisexample fitted with an internal pilot pressure supply and indi-
vidual pressure compensator, feed reduction and pressure reliefvalves.
B A B A B A
LSPB
T2B
T1
PL
PX
LS
P1
PS
B A B A TP B A B A
PS
P1
PLPX
T1
T2B
TX
P1B
LS
Catalogue HY17-8557/UK
General Information
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Directional Control ValvesK170LS
Pressure
Valves of grey-iron typePump inlet max 2601)bar (38001)psi)Service ports max 2801)bar (40001)psi)Valves of nodular-iron typePump inlet max 3301)bar (48001)psi)Service ports max 3501)bar (50001)psi)
Pump regulator p min 182)bar (2602)psi)Compensator K3 p min 302)bar (4352)psi)Return line pressure, static max 15 bar (220 psi)1) Pressures given are maximum absolute reliefpressures at 10 bar (145 psi) tank pressure2) Pressure drop pump to valve max 3 bar (44 psi)
Internal pilot pressure
Standard setting 35 bar (500 psi)Optional setting 45 bar (650 psi)
Feed reducer
Adjustment range 30 to 300 bar(435 to 4350 psi)
Counterpressure valve
Fixed setting 5 bar (70 psi)Pilot operated, signal pressure max 30 bar (435 psi)Pressure ratio,pilot signal : counterpressure 1.2 : 1
Recommended flow rates
Pump connection max 2803)l/min (75 USgpm)Service port with compensator max 1704)l/min (45 USgpm)Service port without compensator max 2204)l/min (60 USgpm)Return from service por t max 280 l/min (75 USgpm)3) 2 x 280 l/min (2 x 75 USgpm) with mid inlet section4) Depending on spool version
Temperature
Oil temperature, function range -20 to 80 C (-4 to 176 F)
Oil temperature, working range +20 to 80 C (68 to 176 F)
Filtration
Filtration must be arranged so that Target Contamination Class20/18/14 according to ISO 4406 is not exceeded. For the pilotcircuit, Target Contamination Class 18/16/13 according to ISO4406 must not be exceeded.
Hydraulic fluids
Best performance is obtained using mineral-base oil of highquality and cleanness in the hydraulic system.Hydraulic fluids of type HLP (DIN 51524), oil for automatic gear-boxes Type A and engine oil type API CD can be used.
Viscosity, function range 15-5000 mm2/s(at start-up only)
Viscosity, working range 15-380 mm2/s
Technical information in this catalogue is applicable at anoil viscosity of 30 mm2/s and temperature of 50 C using ni-trile rubber
WeightInlet section 5.5 kg 18.7 lb approx.Spool section type PC 9.1 kg 20.1 lb approx.Spool section type EC 10.8 kg 23.8 lb approx.
End section 4.1 kg 9.0 lb approx.ConnectionsThreads type G are designed for a flat gasket according to ISO 228/1 (BSP pipe threads)Type UN are designed for sealing by means of an O-ring accordingto standard SAE J 1926/1P1 inlet section G1 or 1 5/16 - 12 UN-2BP2 end section G1 or 1 5/16 - 12 UN-2BT1, T2 inlet section G1 or 1 5/16 - 12 UN-2BA, B spool section G3/4 or 1 1/16 - 12 UN-2BLS, PL inlet section G1/4 or 9/16 - 18 UNF-2BPX, PS inlet section G1/4 or 9/16 - 18 UNF-2BMP inlet section G1/4 or 9/16 - 18 UNF-2BLSP end section G3/8 or 9/16 - 18 UNF-2BT3 end section G1/4 or 9/16 - 18 UNF-2BPC spool section G1/4 or 9/16 - 18 UNF-2B
TP end section G1/4 or 9/16 - 18 UNF-2B
Pump connection
P1 [26]
Load pressure
not copied, PL
Gauge port,
Pump pressure
PX
Copied load
signal, LS
Pilot pressure
supply for
external use, PS
Tank connectionT1 [25]
Tank connection
T2 [24]
Connection for
hydraulic remote
control, PC
(A and B side)
Service port A
Pump
connection
P2 [32]
LSP, LS connection
from parallel valve [31]
Service port B
Tankconnection
T3 [34]
Separate tank
connection for
pilot circuit, TP
[40]
Pilot operation of
counter pressurevalve MP [24]
Catalogue HY17-8557/UK
Technical Data
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Directional Control ValvesK170LS
Item Code Description
12 R Pressure reducing valve with separate safety valvefor internal pilot pressure supply.
13 35 Reduced pressure set to 35 bar
14 S Internal coarse filter for pilot circuit.
15 LS Load-sensing system
16 PA1 Direct operated main pressure relief valve, withfixed setting.
17 280 Pressure setting for main pressure relief valve
24 MF Fixed counterpressure valve
25 T1 Tank connection open
26 P1 Pump connection open
31 LSPB Load-signal connection for parallel-connectedvalve plugged.
32 P2 Pump connection open
34 T3B Tank connection plugged
40 TP Separate tank connection for pilot return
Item Code Description
50 EC Section 1 equipped with proport ional electro-hydraulic remote control
PC Section 2 equipped with proportional hydraulic re-mote control
55 0,8 Restr ictor in pilot supply line
60 EA Section 1 equipped with spool for single act ingfunction. Connect to A-por t. B-port plugged
D Section 2 equipped with spool for double actingfunction.
66 K1 Pressure compensator with bui lt -in check valvefunction
67 0,8 Restriction of load signal to compensator.
75 MR With separate feed reducer on motor ports Aand B
76 Y2 Section 1 port A. Service line cavity blocked M-T
X2 Section 1 port B. Service line cavity open M-T
Section 2 ports A and B. Combined port relief andanti-cavitation valve
The item numbers in the hydraulic circuit diagram and tablebelow refer to the functions or function groups for which dif-ferent options are available. The valve in the example above
is equipped according to the description below. For otherequipment alternatives, see under respective function [itemnumber] in the catalogue.
55
40 40
50
5055 76 76
75
756625
26
14
15
16, 17
12, 13
24 66 606067 67
31
34
32
Catalogue HY17-8557/UK
Hydraulic circuit diagram
Hydraulic circuit diagram showing basic functions for K170LSShaded zones are functions or function groups to be found further on in the text.
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Directional Control ValvesK170LS
Inlet section[12-29]The inlet section is equipped with pump (P1) and tank connec-tions (T1, T2), a connection for the load signal to LS pumps(LS), a connection for pilot pressure supply for external use(PS), a gauge point for pump (PX) and load signal pressures(PL). In the basic variant, the pump connection P1 [26] and tank
connection T1 [25] are open, while the other connections areplugged.
Functions such as maximum pressure relief, copying of theload signal, pressure reduction for internal pilot-supply, as wellas a pilot filter and counterpressure valves can also be integrat-ed into the section.
Internal pilot pressure supply [12]
R Pressure reducer for pilot supply.Internal pilot pressure supply is a valve function, builtinto the inlet section, which works as both a pressure
reducer and a pressure relief valve in the pilot circuit.For safety reasons, the R-cartridge has also beenequipped with a separate safety valve function that pre-vents the maximum permissible reduced pressure frombeing exceeded. A check valve prevents pilot oil fromleaking back to the pump, and therefore enables thepressure in the pilot supply circuit to be maintained inthe event of a temporary fall in pump pressure, e.g. dur-ing a rapid lowering movement, to secure pilot supplyduring pump pressure drop, we recomend to connectan accumulator to the PS port.Pilot pressure for external use, e.g. for delivery to PCL4hydraulic remote control valves, can be tapped from thePS connection on the inlet section.
RX Without pressure reducer for pilot supply.
Pilot pressure [13]
The pilot supply pressure can be set at either 35 or 45 bar.
Pilot filter [14]
S Built in strainer for the pilot supply.Coarse strainer with bypass function in the internal pilotpressure supply. The strainer protects the pilot circuitfrom dirt, especially during start-up of the system.
YS Adapter for connection of external filter for pilot pres-sure oil. Enables the pilot circuit to be supplied withcleaner oil compared with the rest of the system.See also filtration, page 6. Internal pilot-pressure
supply R and pilot strainer S
Pressure relief
valve PA1 [16]
Pump connection
P1 [26]
Tank connection
T1 [25]
Counter pressure
valve. Tank connection
T2 [24]
Load signal
copy spool
Gauge port
pump pressure
PX
Load pressure
(not copied)
connection PL
Internal
pilot pressure
supply [12]
Pilot strainer
[14]
Pilot pressure
supply connection
for external use
PSLoad pressure (copied)
connection LS
4 8 12
10
20
30
00
40
50
Internal pilot-pressure
supply R and adapter YS.(Filter is not supplied with valve)
p (bar) Internal pilot pressure reducer characteristics
q (l/min)
Catalogue HY17-8557/UK
Inlet Section
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Directional Control ValvesK170LS
Load signal system
The load signal system consists of a number of shuttle valves,which compare the load signals from different spool sectionsand send the highest signal to the connection PL, or to a copy-ing spool in the inlet section.The system permits a certain consumption in the load signal lineto the pump, without the load signal level being affected. Thisenables simpler system design, with the possibility of installinglogic systems in the LS circuit. Thanks to drainage in the pumpLS regulator, the system gives better winter operating character-istics with faster response, since the oil in the LS circuit is al-ways warm. In addition to this, the system prevents disruptivemicro-sinking of the load in the beginning of the lifting phase.
Inlet section type [15]
The inlet section is available in two variants, one for CP systemsand one for systems with LS pumps.
LS Inlet section for systems with LS pump.The system is equipped with a directly controlled pres-sure relief valve, PA1[16], which protects the pump and
inlet side of the valve. The LS is always equipped with aload-signal copy function.
CP Inlet section for constant pressure systems.Same as LS but without load-signal copy function, LS.
A025 Inlet section for un-loading constant pressure systems(CPU).
Pressure relief valve [16]
The inlet section is normally equipped with a pressure reliefvalve to protect the pump and valve from pressure peaks in thesystem.
PA1 Direct acting port relief valve, PLC183, with very fast
opening sequence and good pressure characteristics.The replaceable PLC cartridge is factory set. The car-tridge has a make-up function, which means that oil isable to flow from the tank gallery to the pump gallery inthe event of underpressure in the pump circuit. For set-ting values, please see Pressure settings [17].
Y1 Without relief valve.Plug which can replace the pressure relief valve. TheY1-plug blocks the connection between the pump andtank completely. Pressure relief valve PA1
Without relief valve Y1
Inlet section type A025 for un-loading constant pressuresystems (CPU).
Catalogue HY17-8557/UK
Inlet Section
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Directional Control ValvesK170LS
Pressure setting [17]
Pressure setting for PA1 [16]
The PA1 direct acting pressure relief valve is deliveredwith a fixed setting. The standard settings (in bar) avail-able are as follows:
Setting pressure in bar: 50, 63, 80, 100, 125, 140, 160,175, 190, 210, 230, 240, 250, 260, 280, 300 and 330.
The settings 280, 300 and 330 bar are only applicableto valves of nodular-iron.
PA1 needs to be set 20 bar above pump pressure.
See also technical data, page 6.
Tank connection T2 [24]
T2B Alternative tank connection T2 plugged. Commonvariant.
T2 Alternative tank connection T2 open.
Counterpressure valve
The counterpressure valve, which raises the pressure in thevalves tank gallery, is placed in the inlet section. It is available intwo versions: MF with fixed setting and MP with pilot-controlledsetting.
By raising the counterpressure, the anti-cavitation character-istics of the K170LS are improved still further. This might, for ex-ample, be desirable in situations where make-up flow is directedinto the large side of the cylinder during the lowering of loads.Good make-up characteristics eliminate the risk of cavitationand reduce the risk of damage to the cylinder seals. They arealso important for functions in which a lowering movementchanges to a lifting movement without a time delay.
The pilot-operated version gives counterpressure only when
it receives a signal. It can be employed in such a way that thesignal to the counterpressure valve is connected only to thespool-actuator signal(s) controlling the lowering movement(s)that need extra counterpressure. In this way, unnecessary loss-es can be avoided.
MF Counterpressure valve factory set to give 5 bar counter-pressure at a flow of 20 l/min.
MP Pilot operated counterpressure valve for external con-trol of counterpressure between 0 and 36 bar. Tankconnection T1 [25] must be open and tank connectionT3 must be plugged (T3B [34]).The MP pilot operated variant only gives a counter-pressure upon receipt of signal. This can be exploitedso that the signal to the counterpressure valve is con-nected only to the spool actuating signal(s) controllingthe lowering movement(s) that need an extra counter-pressure, thus avoiding unnecessary losses. Max per-mitted signal pressure is 30 bar. The relationship be-tween pressure and signal is 1.2:1.
Tank connection T1 [25]
T1 Tank connection T1 is open. Common variant.
T1B Tank connection T1 is blocked.
Pump connection P1 [26]
P1 Pump connection P1 is open. Common variant.
P1B Pump connection P1 is plugged.
T1
T1
MP
Counterpressure valve MF
Pilot operated counterpressure valve MP
50 100 150 200
100
00
200
300
50 100 150 200
8
00
16
24
4
12
20
p (bar) Pressure relief character istics
p (bar) Anti-cavitat ion characterist ics
q (l/min)
q (l/min)
Catalogue HY17-8557/UK
Inlet Section
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Directional Control ValvesK170LS
End section [30]
US Standard end section.
AP Adapter plate for flanging K170LS to L90LS with exter-nal feedback of load signal from L90LS inlet to adapter
plate (valve not supplied with this feedback).LS-connection [31]
LSP Port open for connection of LS-signal from other valve.This connection is used to receive the load signal froma parallel connected valve.
LSPB Port for LS signal from other valve plugged. LS signal isinternally drained.
Pump connection P2 [32]
P2 Alternative pump connection in rear face.The connection can, for example, be used to feedvalves located to the rear, or for double feeding of thevalve in applications where many functions with veryhigh flow demands are operated simultaneously. Theconnection can also be used in situations where feed-ing from the rear face is the most suitable option interms of space available.
P2B Alternative pump connection plugged. Common variant.
Tank connection T3 [34]
T3 Tank connection T3 is open.
T3B Tank connection T3 is plugged. Common variant.
PX
LS
PL
T1
LSP
TP
T3
P2
P1
PS
Separate tank
connection for
pilot circuit
TP, [40]
Pump connection
P2 [32]
Tank connection
T3 [34]
LS connection [31]
Only with LSP [31]
In the case of parallel connected valves, the PL connection loadsensing signal in the last valve passes to the LSP connection inthe first valve. The rear valve can be fed with pump oil, by con-necting P2 and P1.
End section[30 - 44]The end section is available in two variants, one with all connec-tions machined and one without machined connections for pump(P2), and tank (T3).
In the basic variant, the LS connection LSP [31], pump con-nection P2 [32] and tank connection T3 [34] are plugged.
In addition to the two standard models, there is a specialadapter plate (AP) which is used when the valve flanges against
an L90LS valve. The adapter plate contains only the pilot tank
connection and through channels which connect the pump, tankpilot pump, pilot tank and LS channels of the K170LS and L90LSvalves, respectively. Thus, the pump and tank need only be con-nected to the K170LS valve.
The valves are turned so that the adapter plate serves as acommon end plate for the K170LS and L90LS.
Catalogue HY17-8557/UK
End Section
Separate tank connection for the pilot circuit[40]
TP Separate tank connection for the pilot circuit is open.The connection to the main tank gallery of the direc-tional valve is blocked in the inlet section. The functionis recomended for systems in which there is a risk ofdynamic pressure fluctuations in the tank line, whichcause fluctuations in the pilot circuit when there is acommon tank line.
NB! TP connection can not be plugged./ Not prepared for separate pilot return.
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Directional Control ValvesK170LS
Spool section[45-89]The K170LS directional valve is stackable and can be deliveredin combinations of 1 to 9 spool sections. Each section can beequipped individually with a large number of optional functions,spools and spool actuators for optimum adaptation to the appli-
cation and controlled function.
Material design [48]
G Spool section in grey-iron design, (Max 260 bar inpump port and max 280 bar in service por t).
S Spool section in nodular-iron design, (Max 330 bar inpump port and max 350 bar in service por t).
Spool section with actuator type PC
Spool actuator [50]
Damping ofpressure
compensator
[67]
Port relief valve, Port A [76A]
Spool actuator [50]
Spool [69]
Pressure
compensator [66]
Port relief valve, Port B [76B]
Feed reduction P-B [75B]
Feed reduction P-A [75A]
Catalogue HY17-8557/UK
Spool Section
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Directional Control ValvesK170LS
Spool actuators[50]PC, PCH - Hydraulic spool actuator
PC Hydraulic spool actuation.
PCH Hydraulic spool actuation with manual operation.
The PC and PCH are proportional, hydraulically con-trolled spool actuators with spring centring to the neu-tral position. They are intended to be hydraulicly remotecontrolled by PCL4.
When choosing a control pressure for the PCL4, itsstarting pressure should be approx. 1 bar lower thanthat of the directional valve, in order to ensure gentlestarting and stopping. The pilot pressure for the controlpressure valve can connected to the PS port for the in-ternal pilot pressure supply in the inlet section of thedirectional valve.
PC Control pressure, breakaway* 5.6 barControl pressure, final* 20.5 bar
PCH Control pressure, breakaway* 5 barControl pressure, final* 21 bar
Permissible pressure inpilot cap max. 50 bar
Connections: G1/4 or 9/16-18 UNF
PC, PCH Hydraulic spool actuators
PCH
PC
Connection for
pilot pressure
P-B, A-T
Connection for
pilot pressure
P-A, B-T
Alt. connection
P-A, B-T
Alt. connection
P-A, B-T
PCH
PC
Stroke length limitation
P-A, B-T Qset A [72]
Stroke lengthlimitation P-B,
A-T Qset B [72]
PCH, PC
Air bleeder
Stroke length
limitation P-B,
A-T Qset B [72]
Air bleeder
Air bleeder
*The breakaway pressure is the pressure needed for the direc-tional valve to open the connection pump to service port. Thefinal pressure is the lowest pressure needed to effect full actua-tion of a spool in the directional valve. This data must be takeninto consideration when choosing control units, since the open-ing pressure of the control unit must be lower than the breaka-way pressure of the spool actuator in order to avoid jerky start-ing and stopping. However, the control units final pressure mustbe higher than the final pressure of the directional valve in orderto ensure that the spools can be fully actuated.
Catalogue HY17-8557/UK
Spool Section
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Directional Control ValvesK170LS
Electro-hydraulic proportional spool actuator
EC Electro-hydraulic spool actuator.
ECH Electro-hydraulic spool actuator with manual operationfacility.
The EC and ECH are proportional, electro-hydraulicallycontrolled spool actuators with spring centring to theneutral position. They are intended to be controlled re-motely by the IQAN or EHC35 control systems. Pleasesee separate data sheet for further information aboutParker remote control systems. Pilot pressure oil for theconverter valves is led to the spool actuators throughinternal ducts in the valve. This means that only theelectric cables from the control system to the valve so-lenoids need to be connected externally. The ParkerPVC102 is used as the converter valve. Please contactParker for further information.
The ECH can also be operated steplessly by means ofa hand lever.
Control current for:PVC102, 12 V - Starting min. 420 mAPVC102, 12 V - Fully actuated max. 900 mAPVC102, 24 V - Starting min. 230 mAPVC102, 24 V - Fully actuated max. 500 mA
Gauge port: G1/4 or 9/16-18 UNF
EC, ECH, EB, EBH Electro-hydraulic spool actuator
Electro-hydraulic on-off spool actuator
EB Electro-hydraulic spool actuator.
EBH Electro-hydraulic spool actuator with manual operationfacility.
The EB and EBH are electro-hydraulically controlledon-off spool actuators with spring centering to the neu-tral position. They are intended to be controlled remote-ly by means of on-off signals. Pilot pressure oil for theconverter valves is led to the spool actuators throughinternal ducts in the valve. This means that only theelectric cables from the control system to the valve so-lenoids need to be connected externally. The ParkerQDC102 is used as the converter valve. Please contactParker for further information.
The EBH can be operated steplessly by means of ahand lever.
Control current for QDC102, 12 V 1300 mAControl current for QDC102, 24 V 650 mA
Gauge port: G1/4 or 9/16-18 UNF
ECH, EBHECHEBH
ECEB
EC, EB
ECH, EBHEC, EB
Gauge port
Control P-A, B-T
Control P-B, A-T
QDC102/PVC102
Note! The solenoid will be changes to another type (PVC25)
Catalogue HY17-8557/UK
Spool Section
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Directional Control ValvesK170LS
Pilot restrictor [55 A,B]To give gentle remote control, the EC, ECH, EB, EBH, PC andPCH spool actuators are fitted with pilot restrictors, which canbe chosen individually for each service port. The restrictor givesa kind of ramp function.
For the EC, ECH, EB and EBH, the following options areavailable:
/ Without pilot restrictor
0.45 0.45 mm pilot restrictor
0.6 0.6 mm pilot restrictor
0.7 0.7 mm pilot restrictor
0.8 0.8 mm pilot restrictor (Normal)
0.9 0.9 mm pilot restrictor
1.0 1.0 mm pilot restrictor
1.1 1.1 mm pilot restrictor
1.2 1.2 mm pilot restrictor
1.3 1.3 mm pilot restrictor
1.4 1.4 mm pilot restrictor
1.5 1.5 mm pilot restrictor
1.6 1.6 mm pilot restrictor
For PC, PCH the following options are available:
/ Without pilot restrictor (Normal)
0.6 0.6 mm pilot restrictor
0.8 0.8 mm pilot restrictor
0.9 0.9 mm pilot restrictor
1.0 1.0 mm pilot restrictor
1.1 1.1 mm pilot restrictor
1.2 1.2 mm pilot restrictor
1.3 1.3 mm pilot restrictor
1.4 1.4 mm pilot restrictor
1.5 1.5 mm pilot restrictor
1.6 1.6 mm pilot restrictor
Cable connector[56]
/ Without connector
0 Connector straight
90 Connector 90 degree elbow
6 - 10
32 5
0
B
A
Pilot restrictor for EC, ECH, EB and EBH spool actuators
Straight cable connector
Elbow connector
The PVC102 and QDC102 converter valves can be deliveredwith cable connectors if specified by the customer. If electriccables with fitted connectiors are required, these too are avail-able from Parker, but must be ordered separately.
Catalogue HY17-8557/UK
Spool Section
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Directional Control ValvesK170LS
Spool selection[60-74]Spool options
The spool is the most important link between the operators acti-vation of a lever unit and the movement of the controlled func-tion. For this reason, Parker makes a wide range of standard
spools to meet many different function-specific demands. Spoolselection is effected with the aid of a computerized specificationprogram, using a series of different parameters to determine theoptimum spool for the job.
Spool function [60]
There are many spool variants which are adapted for differentflows, load conditions and actuator area ratios. The spools arealso available with different degrees of force feedback from theservice ports A and/or B.
D Double-acting spool for, e.g. double-acting cylinders.Blocked in the neutral position.
Dm Double-acting spool with drainage of service ports Aand B to tank, which prevents pressure build up in theneutral position. The spool is used as a double spool incombination with a double over-centre valve.
Da Double-acting spool with drainage of service port A totank, which prevents pressure build up in service port Ain the neutral position.
Db Double-acting spool with drainage of service port B totank, which prevents pressure build up in service port Bin the neutral position.
EA Single-action spool for, e.g. single-acting cylinder.Blocked in neutral position. Service port B blocked.
EA3 Single-acting spool for, e.g. single-acting cylinders.Blocked in neutral position. Service port B blocked dur-ing lifting function. Lowering function at both serviceports A and B.
EB Single-acting spool for, e.g. single-acting cylinders.Blocked in neutral position. Service port A blocked.
M Double-acting spool for, e.g. hydraulic motors. Floatingfunction in neutral position.
MA Double-acting spool for, e.g. hydraulic motors. Floatingfunction in neutral position, service port A to Tank.
MB Double-acting spool for, e.g. hydraulic motors. Floatingfunction in neutral position, service port B to Tank.
CB Regenerative spool for rapid feeding of cylinder viaservice port B. The large side of the cylinder is connect-ed to service port B.
Flow requirement [61 A,B]
The K170LS directional valve has a range of optimized spooldesigns for nominal flows up to 170 l/min when the section isequipped with an individual pressure compensator, K1 [66]. SeePressure compensator and/or load-hold check valve [66] forflow with other compensators.
Without an individual pressure compensator, flows up to 220l/min are obtainable, depending on the pre-set regulating differ-ence in the LS pump.
The desired flow to the service ports A and B is entered inthe ordering documentation. Parkers computerized specificationsystem then selects spools to give at least the flow required,also taking other parameters into account.
The maximum flow is then set by limiting the spool stroke bymeans of adjustment screws on the spool actuator or, in thecase of electro-hydraulic remote control, by setting the maximumcurrent.
See Flow settings [72] for details on factory setting of maxi-mum flow.
1 2 3 4 5 6 7 800
40
15
30
80
60
120110
160170
200
220
240
q (l/min) Flow rate in service connection
Spool stroke (mm)
Typical curves showing flow as a function of spool stroke
D
Dm
Da
Db
M
MA
MB
EA
EA3
EB
CB
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Directional Control ValvesK170LS
Area relationship [62]
The area relationship for a section is calculated by dividing thecylinder area that is connected to the service port B by the areathat is connected to the service port A. When the larger side ofthe cylinder is connected to the service port A, the relationshipis less than 1. The area relationship for a motor is 1.
Flow rate in % Optional force feedback
Load characteristics [63]
The character of the load can be selected according to five typi-cal cases. This information is entered so that the spool can begiven the best possible adaptation to the intended application.
LAB Lift load can change between service ports A and B.LA Lift load normally on service port A only.
LB Lift load normally on service port B only.
LN No or low lift load on service por ts A and B.
S Slewing function.
Force feedback [64 A,B]
The K170LS is available with a force-feedback option, which en-ables the positive sense of force control from CFO systems tobe transmitted to LS systems, thus enabling force-control char-acteristics to be incorporated in individual valve sections. Withforce control, the operator is better able to sense the increase inmachine load when a hard obstacle is met, e.g. in digging opera-tions.Force feed-back also gives a kind of ramp function, which re-sults in more gentle transitions during speed changes. This inturn has a stabilizing effect on the hydraulic system, and the ma-chine operating characteristics become smoother. Both these
characteristics are important, especially for slewing functionsand similar movements. With force feedback, machine wear isreduced and efficiency increases.The section can be equipped with force feedback for the serviceports A and B individually. The degree of force feedback can bechosen from three levels. The higher the level of force feedback,the greater the reduction in the functions speed upon increasingresistance for the same lever stroke. It follows from this that thelever must be moved further in order for the speed to remain thesame when the load is increasing.
/ No force feedback
FN Normal level of force feedback
FH High level of force feedback
FL Low level of force feedback
LAB - Load can change between the A- and B-port.
LB - Load normally on B- port only.
LA - Load normally on A- port only.
25 50 75 100
100
0
75
50
25
0
Lever stroke in %
Force feedback
Light
loadHavy
load
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Directional Control ValvesK170LS
Pressure compensators
The primary purpose of pressure compensation is to maintain aconstant flow rate to a function, regardless of pressure varia-
tions in the system. The facility is of special value in lifting func-tions.
Excellent simultaneous operation characteristicsIn cases where several machine functions are operated simulta-neously, the spool sections in the K170LS can be equipped withindividual, integrated pressure compensators. Subject to availa-ble pump capacity, sections so equipped will deliver the pre-de-termined constant flow regardless of other simultaneously oper-ated functions, and regardless of variations in load or feed pres-sure. Parker integrated pressure compensators have a veryquick response time and incorporate built-in load-hold checkvalves.
Increased or reduced function speed where required
To meet demands for exact speed in certain functions, Parkerintegrated pressure compensators comes in a number of fixedvariants that give flow rates from nominal to +55% through theselfsame spool (see K1 to KN1 below). To accommodate chang-ing operating conditions, a variant that can be adjusted on site togive 20% of nominal flow is also available (see KS below).
K1 Fixed pressure compensator with load-hold checkvalve. The spool gives nominal flow.
K2 Fixed pressure compensator with load-hold checkvalve. The spool gives 20% more than nominal flow.
K3 Fixed pressure compensator with load-hold checkvalve. The spool gives 55% more than nominal flow.N.B. Pump must deliver a pressure of at least p=30
bar. (30 bar above load signal reported to pump regula-tor.)
KN1 Fixed pressure compensator with extra fast load-holdcheck valve. The spool gives 15% more than nominalflow.
KS Adjustable pressure compensator with load-hold checkvalve. The spool gives 20% of nominal flow.
N1 Load-hold check valve.
X1 Prepared for compensator and load-hold check valve.
q (l/min) Flow rate curves
Load pressure (bar)
Load independent flow with pressure compensator
100 200 300
40
80
120
00
160
200
Pressure compensator for constant flow in service port (KN1).
Pressure compensator and/or load-hold check valve[66]
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Directional Control ValvesK170LS
Damping of pressure compensator [67]
The load-signal restrictor affects the response of the pressurecompensator.
0.6 Alternative LS restrictor for comp. 0.6 mm
0.8 Recommended LS restrictor for comp. 0.8 mm
1.0 Alternative LS restrictor for comp. 1.0 mm
Spool designation [69]
The task of spool selection can be submitted to Parkers com-puterized specification program, which adapts the spool tomatch the specific demands of each function, thus optimizingthe spool.
The information given at positions 61, 62, 63, 64 and 66therefore makes up part of the basis for the choice of spool.
Flow settings [72]
With PC and PCH spool actuators, flow limitation over the spoolto motor ports A and B can be effected by means of mechanicallimitation of the spool stroke length.
Qset When the spool section is equipped with a PC or PCHspool actuator, it can be delivered with a factory-setmaximum flow rate. Setting is carried out according tothe stated flow requirements to the A-and B-ports[61 A, B].
Qset A When the spool section is equipped with a PC or PCHspool actuator, it can be delivered with a factory-setmaximum flow rate. Setting is carried out according tothe stated flow requirements to the A-ports [61 A].
Qset B When the spool section is equipped with a PC or PCHspool actuator, it can be delivered with a factory-setmaximum flow rate. Setting is carried out according to
the stated flow requirements to the B-ports [61B].
When setting the flow rates for sections without pressure com-pensators in systems with LS pumps, the flow setting is madewith a p of 18 bar between the pump pressure in PX and theload signal in PL, at full flow take-up. For details on setting theflow for PC spool actuators, see page 13.
Feed reduction valves [75]
Any section in the K170LS valve can be equipped with individu-al feed reducing valves for the service ports A and B. These areused for those functions in the system which require a lowermaximum pressure than the normal operating pressure of thesystem. The reducing valve is infinitely adjustable between 30and 300 bar. It serves to reduce the pump pressure so that the
feed pressure in the section in which it is fitted does not exceedthe pre-set value.
The use of feed reducing valves enables the pressure to belimited without using any more than a pilot flow (
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Directional Control ValvesK170LS
Port relief and/or anti-cavitation valves [76 A,B]
A specially designed cartridge valve is used as a port relief andanti-cavitation valve, PA, in the service ports. Its function is toprotect the valve and consumer from pressure peaks and exces-sive pressure in the system. The very rapid opening sequenceand good pressure characteristics make the cartridge valve anexcellent port relief valve. The anti-cavitation valve causes oil toflow from the tank gallery to the service port side in the event ofunderpressure in the service ports.
Separate anti-cavitation valve in service ports
As an alternative to the port relief valve, the service ports can befitted with anti-cavitation valves, N2 cartridges. These enable oilto flow from the tank gallery to the service port side in the eventof underpressure.The connection between tank and service port can also beblocked using an Y2-plug.
Anti cavitation characteristics
The curve shows the pressure drop between tank connectionand service port when the PA or N2 cartridge is used as ananti-cavitation valve.
X2 Service port A or B open to tank.
Y2 Service port A and/or B to tank blocked with plug.
N2 Service port A and/or B side of section equipped withanti-cavitation valve.
50-350 Standard pressure settings for port relief valves (PA) inbar:50, 63, 80, 100, 125, 140, 160, 175, 190, 210, 230,240, 250, 260, 280, 300*, 330* and 350*.
* Applies only to valves of nodular-iron design.
See also technical data, page 6.
The pressure setting on the port relief valve can be set as low as10 bar above reducer setting. [75 A,B].
50 100 150 200
100
00
200
300
50 100 150 200
8
00
16
24
4
12
20
p (bar) Pressure relief character istics
p (bar) Anti-cavitation characteristics with PA or N2
q (l/min)
q (l/min)
Port B is equipped with acombined port relief valveand anti-cavitation valve. (PA)Port A is equipped with ananti-cavitation valve (N2).
Port B is open to tank (X2)and port A has no tankconnection (Y2).
Catalogue HY17-8557/UK
Spool Section
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Directional Control ValvesK170LS
This block, like most of our function blocks, is built up usingstandard cartridge valves. Only the block itself is unique.
Function block [90-99]The K170LS can be equipped with function blocks (manifolds)that enables complete system solutions to be integrated into thevalve.
Please contact Parker for more details on integrated system
solutions. In addition to standard blocks, Parkers custom-buildsfunction blocks to meet special system demands.Below is an example of a specially designed function block
for a specific customer.
ConnectorsConnectors are not included with spool actuators, and should beordered separately as per the lists below.
Spool actuatorsEC3, EC4 and inlet section withpump-unloadingSuitable connectors are the:AMP Junior-Timer type C, 963040-3or Bosch 1 928 402 404.
Assembly kits complete 1 off 393000K822with pins and seals can be 10 off 393000K825ordered using the kit 50 off 393000K826numbers opposite. 100 off 393000K827
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Directional Control ValvesK170LS
No. of L LSections mm inch1 200 7.872 250 9.843 300 11.814 350 13.78
5 400 15.756 450 17.727 500 19.698 550 21.659 600 23.62
a) Pilot pressure connection PC activates service port A
16,5
89
128
111(LSP,T3)
99PC
a)
A
61,5PC
b)
B
64,5
37
190
135,5
0,5
43,5
47 36
151 (2x) 94
265,5
348
L
86
(50)
max 18,5
max 18,5
12PCa
)
A
PC b)B
62,7(T2,MP)
60,2(P1,T1)
52,7(YS)
44,5(LSP)
134
55
30
163
177,5140,5
103,5(T2,MP)
48
12
39,5(YS)
(5.28)
(2.17)
(1.85)(1.42)
(10.45)
(13.70)
(3.70)(5.94)
(0.47)
((1.97))
(3.39)
(0.73)
(2.47)
(2.37)
(2.07)
(4.37)
(3.90)
(2.54)
(2.42)
(1.46)
(0.65)
(3.50)
(5.04)
(7.48)
(5.33)
(0.02)
(1.71)
(1.75)
(0.73)
(1.18)
(6. 42)
(6.99) (5.53) (1
.89)
(1.56)
(0.47)
(4.07)
(inch)
Catalogue HY17-8557/UK
Dimensional drawing
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Parker Hannifin is the worlds premier supplier of motion and control systemsand solutions, with sales and manufacturing facilities throughout the world. Forproduct information and details of your nearest Parker sales office, visit us atwww.parker.com or call free on 00800 2727 5374.
Hydraulics GroupSales Offices
AustriaWiener NeustadtTel: +43 (0)2622 23501Fax: +43 (0)2622 66212
BelgiumNivellesParc Industriel Sud-Zone II
Tel: +32 (0)67 280 900Fax: +32 (0)67 280 999
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FranceContamine-sur-ArveTel: +33 (0)450 25 80 25Fax: +33 (0)450 03 67 37
GermanyKaarstTel: +49 (0)2131 4016 0Fax: +49 (0)2131 4016 9199
HungaryBudapestTel: +36 (06)1 220 4155Fax: +36 (06)1 422 1525
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ItalyCorsico (MI)Tel: +39 02 45 19 21Fax: +39 02 4 47 93 40
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Fax: +31 (0)541 585459
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PolandWarsawTel: +48 (0)22 863 49 42Fax: +48 (0)22 863 49 44
PortugalLeca da PalmeiraTel: +351 22 9997 360Fax: +351 22 9961 527
SlovakiaRef. Czech Republic
SpainMadridTel: +34 91 675 73 00Fax: +34 91 675 77 11
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United KingdomWatford (industrial)Tel: +44 (0)1923 492 000
Fax: +44 (0)1923 256 059Ossett (mobile)Tel: +44 (0)1924 282 200Fax: +44 (0)1924 282 299
InternationalEurope
Catalogue HY17-8557/UK/USXM 05/03 RT
Copyright 2003
AustraliaCastle HillTel: +61 (0)2-9634 7777Fax: +61 (0)2-9899 6184
CanadaMilton, OntarioTel: +1 905-693-3000
Fax: +1 905-876-0788
ChinaBeijingTel: +86 10 6561 0520Fax: +86 10 6561 0526
Asia Pacific GroupHong Kong, KowloonTel: +852 2428 8008Fax: +852 2425 6896
IndiaMumbaiTel: +91 22 7907081Fax: +91 22 7907080
JapanTokyoTel: +(81) 3 6408 3900Fax: +(81) 3 5449 7201
Latin America GroupBrazilTel: +55 12 3954-5100Fax: +55 12 3954-5266
South AfricaKempton ParkTel: +27 (0)11-392 7280Fax: +27 (0)11-392 7213
USA
Cleveland (industrial)Tel: +1 216-896-3000Fax: +1 216-896-4031Lincolnshire (mobile)Tel: +1 847-821-1500Fax: +1 847-821-7600
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Spare Parts List
Series K170LS
Publ. No 9129 8560-49March, 2000, Edition 08
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List of contents Page Edition
Inlet sectionDifferent options, MF, MP, R, S etc. .......................................... 2 - 3 03Different options, PA, Y1, T1B, P1B etc ...................................4 - 5 02
Spool sectionSpool actuators PC, EC, EB, ECH etc. A-side. ........................ 6 - 7 02Spool actuator EC(H), EB(H) + A012 ................................. 6.1 - 7.1 06Spool actuators PC, EC, EB, ECH etc..B-side ......................... 8 - 9 05Different options, MR, K1, K2, KS, N1 etc. ........................... 10 - 11 03Service port accessories PA, Y2, N2 etc. ............................. 12 - 13 02
End sectionOutlet options LSP, T3B etc.tie-rods, intersection seals ....... 14 - 15 03Outlet options A004, A009 etc. ............................................. 16 - 17 04*
* New edition** New page
Conversion table
1 bar = 14.5 lb(f) - in2 (125 bar = 1812 lb(f) - in2)
1 Nm = 8.8508 lb(f) - in (60 Nm = 531 lb(f) - in)
1 Nm = 0.7376 lb(f) - ft (60 Nm = 44.25 lb(f) - ft)1 mm = 0.03937 in (17.3 mm = 0.68 in)
Parker Hannifin AB, Mobile Controls Division reserves theright to modify products without prior notice. Even thoughthe companys brochures are revised and updatedcontinuously, there is always the possibility of errors.For more detailed product information, please contact
Parker Hannifin AB, Mobile Controls Division.
Spare Parts List K170LS
Note!Description,Part numbersOverleaf!
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Code Part # Description Remarks
R35 9120 0920 01 Pilot supply, 35 bar, Green (2) Items 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
R35 9120 0920 29 Pilot supply, 35 bar, Red (1) Items 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
R45 9120 0922 50 Pilot supply, 45 bar, Green (2) Items 1, 2, 3, 5, 6, 7, 8, 9, 10, 11
R45 9120 0922 51 Pilot supply, 45 bar, Red (1) Items 1, 2, 3, 5, 6, 7, 8, 9, 10, 11
S 9120 0920 04 Internal pilot filter Items 1, 2, 3, 4, 5
YS 9120 0920 05 External pilot filter for BSP Items 2, 3
YS 9120 0922 52 External pilot filter for UNF Items 1, 2, 3
MP 9120 0920 08 Counter pressure valve, pilot op. BSP Items 3, 4, 8, 9
MP 9120 0920 09 Counter pressure valve, pilot op. UNF Items 3, 4, 8, 9
MF 9120 0920 10 Counter pressure valve, fact.set, BSP Items 1, 2, 3, 4, 5, 6, 7
MF 9120 0920 11 Counter pressure valve, fact.set, UNF Items 1, 2, 3, 4, 5, 6, 7
MF + A019 9120 0922 91 Counter pressure valve, fact.set, UNF Items 1, 2, 3, 4, 5, 6, 7
MF + A019 9120 0922 92 Counter pressure valve, fact.set, BSP Items 1, 2, 3, 4, 5, 6, 7
T2B 9120 0920 06 Tank connection T2 blocked, BSP Items 1, 2
T2B 9120 0920 07 Tank connection T2 blocked, UNF Item 1(2)
LS 9120 0920 41 Copy spool (LS system), Red Items 1, 2, 3, 4
LS 9120 0922 53 Copy spool (LS system), Green Items 1, 2, 3, 4
CP 9120 0922 54 LS channel blocked (CP system) Items 1, 3, 4
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Code Part # Description Remarks
T1B/P1B 9120 0920 06 T1 connection plugged, BSP Items 1, 2
T1B/P1B 9120 0920 07 T1 connection plugged, UNF Items 1, 2
PL/PX/PS/LSB 9120 0920 12 Connections are Blocked, BSP Items 1, 2
PL/PX/PS/LSB 9120 0920 13 Connections are Blocked, UNF Items 1, 2
PA 9120 0296 04 Main relief valve, PLC184-050-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 05 Main relief valve, PLC184-063-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 06 Main relief valve, PLC184-080-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 07 Main relief valve, PLC184-100-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 08 Main relief valve, PLC184-125-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 09 Main relief valve, PLC184-140-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 10 Main relief valve, PLC184-160-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 11 Main relief valve, PLC184-175-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 12 Main relief valve, PLC184-190-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 13 Main relief valve, PLC184-210-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 14 Main relief valve, PLC184-230-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 24 Main relief valve, PLC184-240-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 15 Main relief valve, PLC184-250-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 23 Main relief valve, PLC184-260-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 16 Main relief valve, PLC184-280-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 17 Main relief valve, PLC184-300-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 18 Main relief valve, PLC184-330-20 Items 2(1), 3 Factory set, x bar at 20l/min
PA 9120 0296 40 Main relief valve, PLC184-190-60 Items 2(1), 3 Factory set, x bar at 60l/min
PA 9120 0296 41 Main relief valve, PLC184-210-60 Items 2(1), 3 Factory set, x bar at 60l/min
Y1 9120 0920 14 Main relief cavity plugged Items 1, 2, 3, 4
(TP) 9120 0923 31 Pilot tank separated from main tank Items 1, 2
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EC/EB 9120 0920 20 Cap kit EC/EB, A-side, BSP Items 1, 2(3x), 3, 4, 5, 6(2x), 7(4x), 8, 9, 10
EC/EB 9120 0920 21 Cap kit EC/EB, A-side, UNF Items 1, 2(3x), 3, 4, 5, 6(2x), 7(4x), 8, 9, 10
EC/EB 9120 0920 39 Seal kit EC/EB, A-side Items 6(2x), 7(4x) ,8, 10(2x), 12(2x), 13(2x)
EC/EB 9127 1971 07 Orifice, 0.8 mm (M6) Item 11
EC/EB 9127 1971 09 Orifice, 1.0 mm (M6) Item 11
EC/EB 9127 1971 10 Orifice, 1.2 mm (M6) Item 11
EC/EB 9127 1971 01 Orifice, 1.3 mm (M6) Item 11
EC/EB 9127 1971 02 Orifice, 1.4 mm (M6) Item 11
EC/EB 9127 1971 11 Orifice, 1.5 mm (M6) Item 11
EC/EB 9127 1971 03 Orifice, 1.6 mm (M6) Item 11
X 9120 0920 22 Solenoid cavity plugged Items 6, 20(12,13,19,21,22), 23(2x), 24(2x)
PVC102 9120 0792 43 Proportional solenoid valve, 12VDC Items 6, 12, 13, 14, 15(2x)
PVC102 9120 0792 44 Proportional solenoid valve, 24VDC Items 6, 12, 13, 14, 15(2x)
QDC102 9120 0792 45 On-off solenoid valve, 12VDC Items 6, 12, 13, 14, 15(2x)
QDC102 9120 0792 46 On-off solenoid valve, 24VDC Items 6, 12, 13, 14, 15(2x)
PVC/QDC 9126 3234 50 Air-bleed screw Item 16(2x), (For 2 solenoids)
90 9125 9551 Connector Item 17
0 9125 9999 Connector Item 18
Code Part # Description Remarks
Spare Parts List Series K170LS
PC BSP UNF Damper in mm Items Colour
- 9120 0923 08 9120 0923 28 0.6 10(12), 11 Brown
- 9120 0923 01 9120 0923 21 0.8 10(12), 11 White
- 9120 0923 09 9120 0923 29 0.9 10(12), 11 Grey
- 9120 0923 02 9120 0923 22 1.0 10(12), 11 Green
- 9120 0923 10 9120 0923 30 1.1 10(12), 11 Red + White
- 9120 0923 03 9120 0923 23 1.2 10(12), 11 Yellow
- 9120 0923 06 9120 0923 26 1.3 10(12), 11 Orange
- 9120 0923 04 9120 0923 24 1.4 10(12), 11 Green + White
- 9120 0923 07 9120 0923 27 1.5 10(12), 11 Blue
- 9120 0923 05 9120 0923 25 1.6 10(12), 11 Pink
Code Part # Description Remarks
PC 9120 0920 18 Cap kit PC, A-side, BSP Items 1, 2, 3(3x), 4(3x), 5, 6, 7(3x), 8, 9
PC 9120 0920 19 Cap kit PC, A-side, UNF Items 1, 2, 3(3x), 4(3x), 5, 6, 7(3x), 8, 9
PC 9120 0920 38 Seal kit PC, A-side Items 1, 7(3x), 8, 11(2x)
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Code Part # Description Remarks
EC(H)/EB(H) 9120 0923 66 Cap kit EC/EB B-side, BSP Items 3, 4, 5, 6, 7, 10(2x), 11(2x)
EC(H)/EB(H) 9120 0923 67 Cap kit EC/EB B-side, UNF Items 3, 4, 5, 6, 7, 10(2x), 11(2x)
EC(H)/EB(H) 9120 0923 68 Cap kit EC/EB B-side, M Items 3, 4, 5, 10(2x), 11(2x)
EC(H)/EB(H) 9120 0922 84 Seal kit EC/EB, B-side Items 3, 5
- 9120 0922 85 Air bleeding screw Item 5(2x)
EC(H)/EB(H) 9120 0920 15 Spring kit Items 1, 2
EC(H)/EB(H) 9120 0923 69 Cap kit EC/EB A012, A-side, BSP Items 1(2x), 2(3x), 3, 4, 5, 7(4x), 8,
9, 10, 11(4x)
EC(H)/EB(H) 9120 0923 70 Cap kit EC/EB A012, A-side, UNF Items 1(2x), 2(3x), 3, 4, 5, 7(4x), 8,
9, 10, 11(4x)
EC(H)/EB(H) 9120 0923 71 Seal kit EC/EB A012, A-side Items 7(4x), 8
EC(H)/EB(H) 393000K544 PVC25, 12VDC for A012 Items 11(4x), 12(4x), 16(13, 14, 15), 19( 3)
EC(H)/EB(H) 393000K545 PVC25, 24VDC for A012 Items 11(4x), 12(4x), 16(13, 14, 15), 19( 3)
PVC 393000K813 Seal kit PVC25 Items 13, 14, 15 (kit for 1 solenoid valve)
PVC 393000K822 Connector kit Items 17, 20 (kit for 1 solenoid valve)
PVC 393000K825 Connector kit Items 17, 20 (kit for 10 solenoid valves)
PVC 3763 308 Pilot restriction 3.0 Item 19 (Supplied encl. with solenoid)
PVC 3762 612 Pilot restriction 2.0, marking 9 spots Item 19 (earlier colour marked black)
PVC 3762 611 Pilot restriction 1.5, marking 8 spots Item 19 (earlier colour marked blue)
PVC 3762 400 Pilot restriction 1.4, marking 7 spots Item 19 (earlier colour marked green/white)
PVC 3762 610 Pilot restriction 1.3, marking 6 spots Item 19 (earlier colour marked orange)
PVC 3762 399 Pilot restriction 1.2, marking 5 spots Item 19 (earlier colour marked yellow)
PVC 3762 609 Pilot restriction 1.1, marking 4 spots Item 19 (earlier colour marked red)PVC 3762 398 Pilot restriction 1.0, marking 3 spots Item 19 (earlier colour marked green)
PVC 3762 910 Pilot restriction 0.9, marking 10 spots Item 19 (earlier colour marked red/white)
PVC 3762 397 Pilot restriction 0.8, marking 2 spots Item 19 (earlier colour marked white)
PVC 3762 396 Pilot restriction 0.6, marking 1 spot Item 19 (earlier colour marked brown)
PVC 3764 310 Pilot restriction 0.45, mark. 11 spots Item 19 (earlier colour marked blue/white)
PVC 3764 762 Pilot restriction 0.7, marking 12 spots Item 19 (earlier colour marked black/red)
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Code Part # Description Remarks
PC/PCH 9120 0920 16 *Cap kit PC/PCH B-side, BSP Items 3, 4, 5, 6, 7, 8, 9, 10(2x), 11(2x)
PC/PCH 9120 0920 17 *Cap kit PC/PCH B-side, UNF Items 3, 4, 5, 6, 7, 8, 9, 10(2x), 11(2x)
*Possibility for spool stroke limitation
EC(H)/EB(H) 9120 0923 66 *Cap kit EC/EB B-side, BSP Items 3, 4, 5, 6, 7, 10(2x), 11(2x)
EC(H)/EB(H) 9120 0923 67 *Cap kit EC/EB B-side, UNF Items 3, 4, 5, 6, 7, 10(2x), 11(2x)
EC(H)/EB(H) 9120 0923 68 *Cap kit EC/EB B-side, M Items 3, 4, 5, 6, 7, 10(2x), 11(2x)
*No possibility for spool stroke limitation
PC/EC/EB 9120 0922 84 Seal kit PC/EC/EB, B-side Items 3, 5, 6, 9
- 9120 0922 85 Air bleeding screw Item 5(2x)
PC/EC/EB 9120 0920 15 Spring kit Items 1, 2
PCH/ECH/EBH 9120 0920 45 Lever housing kit Items 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24(2x)
PCH/ECH/EBH 9120 0920 46 Seal kit, lever housing Items 3, 13, 20, 22, 23
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Spare Parts List Series K170LS
Code Part # Description Remarks
MR 9120 0920 23 Output reducing valve Items 1, 2(2x), 3, 4, 5, 6, 7, 8, 9
X1 9120 0920 27 Compensator cavity plugged Items 1, 2, 3(4, 5)
N1 9120 0920 65 Check valve, size 1, (Red) Items 1, 2, 3(4, 5), 6, 7, 8
N1 9120 0920 26 Check valve, size 2, (Green) Items 1, 2, 3(4, 5), 6, 7, 8
N1 9120 0920 66 Check valve, size 3, (Blue) Items 1, 2, 3(4, 5), 6, 7, 8
K1 9120 0920 62 Compensator K1, size 1, (Red) Items 6, 7, 8, 9, 11
K1 9120 0920 58 Compensator K1, size 2, (Green) Items 6, 7, 8, 9, 11
K1 9120 0920 54 Compensator K1, size 3, (Blue) Items 6, 7, 8, 9, 11
K2 9120 0920 63 Compensator K2, size 1, (Red) Items 6, 7, 8, 9, 10, 11
K2 9120 0920 59 Compensator K2, size 2, (Green) Items 6, 7, 8, 9, 10, 11
K2 9120 0920 55 Compensator K2, size 3, (Blue) Items 6, 7, 8, 9, 10, 11
K3 9120 0920 64 Compensator K3, size 1, (Red) Items 6, 8, 11
K3 9120 0920 60 Compensator K3, size 2, (Green) Items 6, 8, 11
K3 9120 0920 56 Compensator K3, size 3, (Blue) Items 6, 8, 11
KN1 9120 0922 95 Compensator KN1, size 1, (Red) Items 6, 7, 14(8, 9, 10, 11, 12, 13)
KN1 9120 0922 96 Compensator KN1, size 2, (Green) Items 6, 7, 14(8, 9, 10, 11, 12, 13)
KN1 9120 0922 97 Compensator KN1, size 3, (Blue) Items 6, 7, 14(8, 9, 10, 11, 12, 13)
K1/K2/K3/KN1 9120 0920 51 Plug with orifice 0.6 mm Items 3(4, 5)
K1/K2/K3/KN1 9120 0920 52 Plug with orifice 0.8 mm Items 3(4, 5)
K1/K2/K3/KN1 9120 0920 53 Plug with orifice 1.0 mm Items 3(4, 5)
KS 9120 0922 63 Compensator KS, size 1, (Red) Items 8, 9, 10, 11, 12KS 9120 0922 64 Compensator KS, size 2, (Green) Items 8, 9, 10, 11, 12
KS 9120 0922 65 Compensator KS, size 3, (Blue) Items 8, 9, 10, 11, 12
KS 9120 0922 60 Plug with orifice 0.6 mm Items 3(1, 2, 4, 5, 6)
KS 9120 0922 61 Plug with orifice 0.8 mm Items 3(1, 2, 4, 5, 6)
KS 9120 0922 62 Plug with orifice 1.0 mm Items 3(1, 2, 4, 5, 6)
- 9120 0920 37 Seal kit, K1/K2/K3/KN1/KS Items 2, 4, 5
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76A/76B 9120 0295 04 9120 0295 54 Port relief valve, PLC183- 50-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 05 9120 0295 55 Port relief valve, PLC183- 63-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 06 9120 0295 56 Port relief valve, PLC183- 80-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 07 9120 0295 57 Port relief valve, PLC183-100-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 08 9120 0295 58 Port relief valve, PLC183-125-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 09 9120 0295 59 Port relief valve, PLC183-140-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 10 9120 0295 60 Port relief valve, PLC183-160-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 11 9120 0295 61 Port relief valve, PLC183-175-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 12 9120 0295 62 Port relief valve, PLC183-190-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 13 9120 0295 63 Port relief valve, PLC183-210-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 14 9120 0295 64 Port relief valve, PLC183-230-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 15 9120 0295 65 Port relief valve, PLC183-250-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 23 9120 0295 73 Port relief valve, PLC183-260-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 16 9120 0295 66 Port relief valve, PLC183-280-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 17 9120 0295 67 Port relief valve, PLC183-300-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 18 9120 0295 68 Port relief valve, PLC183-330-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 19 9120 0295 69 Port relief valve, PLC183-350-20, (bar at 20 l/min) Items 1, 2, 5
76A/76B 9120 0295 24 9120 0295 74 Port relief valve, PLC183-240-20, (bar at 20 l/min) Items 1, 2, 5
Code Part # Description Remarks
Position Part #, std Part #, A002 Description Remarks
PA 9120 0920 28 Plug for port relief valve PLC183 Items 3, 4
N2 9120 0920 30 Check valve Items 1, 2, 3, 4, 5
Y2 9120 1001 22 Cavity for port relief plugged Items 1, 2, 3, 4
X2 9126 2642 Plug Item 2X2 9125 6889 O-ring Item 3
X2 9128 4943 02 Cover X Item 1
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Code Part # Description Remarks
Brackets 9120 0920 35 Bracket kit Items 1(2x), 2
Tie rods 9120 0923 41 Tie rod kit for 1 - section valve Items 1(3x), 2(6x) Length: 193 mm
Tie rods 9120 0923 42 Tie rod kit for 2 - section valve Items 1(3x), 2(6x) Length: 244 mm
Tie rods 9120 0923 43 Tie rod kit for 3 - section valve Items 1(3x), 2(6x) Length: 297 mm
Tie rods 9120 0923 44 Tie rod kit for 4 - section valve Items 1(3x), 2(6x) Length: 348 mm
Tie rods 9120 0923 45 Tie rod kit for 5 - section valve Items 1(3x), 2(6x) Length: 396 mm
Tie rods 9120 0923 46 Tie rod kit for 6 - section valve Items 1(3x), 2(6x) Length: 448 mm
Tie rods 9120 0923 47 Tie rod kit for 7 - section valve Items 1(3x), 2(6x) Length: 501 mm
Tie rods 9120 0923 48 Tie rod kit for 8 - section valve Items 1(3x), 2(6x) Length: 549 mm
Tie rods 9120 0923 49 Tie rod kit for 9 - section valve Items 1(3x), 2(6x) Length: 597 mm
- 9120 0920 36 Intersection seal kit Items 1(3x), 2(3x), 3, 4(3x)
LSP 9120 0920 32 LS connection open, BSP Items 1, 2, 3
LSP 9120 0920 33 LS connection open, UNF Items 1, 2, 3, 4
LSPB 9120 0920 34 LS connection plugged, BSP/UNF Items 1, 2
P2B 9120 0920 06 P2 connection plugged, BSP Items 1, 2
P2B 9120 0920 07 P2 connection plugged, UNF Items 1, 2
T3B 9120 0920 12 T3 connection plugged, BSP Items 1, 2
T3B 9120 0920 13 T3 connection plugged, BSP Items 1, 2
TPB 9120 0920 12 TP connection plugged, BSP Items 1, 2
TPB 9120 0920 13 TP connection plugged, UNF Items 1, 2
- 9120 0920 50 Shuttle valve Items 1, 2
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Spare Parts List Series K170LS
Code Part # Description Remarks
- 9120 0923 50 Basic valve, plugs, seals Items 1, 2, 3, 4(2x), 5(3x), 6(2x), 7(2x),
8(2x), 9, 10, 13, 14(3x)
- 3762876 Basic valve, check valve Items 11, 12
- 9126 9008 09 Basic valve, seal kit Item 11
TPB 9120 0920 12 Connection TP plugged, BSP Items 1, 2
TPB 91200920 13 Connection TP plugged, UNF Items 1, 2
P2B 9120 0920 06 P2 connection plugged, BSP Items 1, 2
P2B 9120 0920 07 P2 connection plugged, UNF Items 1, 2
LSPB 9120 0920 43 LS connection plugged, BSP/UNF Items 1, 2
T3B 9125 8017 Plug, BSP Item 1
T3B 0661 1033 Sealing ring Item 2
T3B 3176 7869 07 Plug, UNF Item 2
(LSP) 9125 8003 Plug Item 3**
A004 8231 1127 55 Coil (24 VDC) Item 1
A004 3762526 Solenoid valve Item 2
A009 8231 1127 50 Coil (12 VDC) Item 1
A009 8231 1127 00 Solenoid valve Item 2
- 8231 6004 25 Seal kit for solenoids A004/A009 -
A004/A009 9127 1971 01 Orifice 1.3 mm Item 3*
A004/A009 9127 1971 02 Orifice 1.4 mm Item 3*
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Parker Hannifin ABMobile Controls DivisionS-501 78 BorsS eden
For further information, please contact:
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SystemPos Description Code
- Number of sections 4
01 Pump Capacity 240 l/min.
02 Pump Pressure 230 Bar
04 Port threads U (UNF)
05 System voltage 24 Volt
06 Application
08 Marking
Inlet sectionPos Description Code
12 Pressure reducer valve R13 Pilot pressure supply 35 Bar
14 Pilot filter S
15 Inlet section type LS
16 Main pressure relief valve PA1
17 Relief valve setting 250 Bar
24 Counter pressure valve MF
25 Tank connection T1
26 Pump connection P1
29 Inlet section variant /
End sectionPos Description Code
30 End Section US
31 LS connection LSP32 Pump connection P2B
34 Tank connection T3B
40 Separate pilot tank /
44 End section variant /
Customer specification
Page
Date of issue: 2003-11-21
Printing date: 2004-03-18
Latest update: 2004-01-15
SYBER version: 6.3.1
Option list edition: 19
Company: Breaker Tech
Project name:
Application:
Customer specification number
K170LS-04-US74-012Issued by:
Approved by: Per N
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Pos 45 Function allocated for the different spool sections.
Spool sect. 1 Swing
2 Breaker Tilt3 Boom Dipper
4 Boom Hoist
Pos Description Sec. 1 2 3 4
Spool section48 Material S S S S
Spool control50 Spool control EC EC EC EC
55A Pilot orifice 0,8
(EC)
0,8
(EC)
0,8
(EC)
0,8
(EC)
55B Pilot orifice 0,8
(EC)
0,8
(EC)
0,8
(EC)
0,8
(EC)
56A Connector for solenoid / / / /
56B Connector for solenoid / / / /
59 Spool control variant A012 A012 A012 A012
59 Spool control variant / / / /
Spool section parameters60 Spool function DS M M M
61A Flow demand 100 40 100 95
61B Flow demand 100 40 100 9562 Area ratio B/A
63 Load characteristics S LB LB LB
64A Force feed back / / / /
64B Force feed back / / / /
66 Compensator/check valve K1 K1 K1 K1
67 Compensator damping 0,8 0,8 0,8 0,8
69 Spool designation ZFX YCX PPX PPX
71A Calculated max flow P-M 155 45 105 105
71B Calculated max flow P-M 155 45 105 105
72 Flow setting / / / /
74 Spool section variant / / / /
Pressure settings75 Feed reducer MR MR MR MR
75A Feed.red. setting 190 136 156 54
75B Feed.red. setting 190 136 88 164
76A Service line option N2 175 210 080
76B Service line option N2 175 125 230
System function89A A-port variant / / / /
89B B-port variant / / / /
Customer specification
Page
Date of issue: 2003-11-21
Printing date: 2004-03-18
Latest update: 2004-01-15
SYBER version: 6.3.1
Option list edition: 19
Company: Breaker Tech
Project name:
Application:
Customer specification number
K170LS-04-US74-012Issued by:
Approved by: Per N
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Notes
We require T3
Customer specification
Page
Date of issue: 2003-11-21
Printing date: 2004-03-18
Latest update: 2004-01-15
SYBER version: 6.3.1
Option list edition: 19
Company: Breaker Tech
Project name:
Application:
Customer specification number
K170LS-04-US74-012Issued by:
Approved by: Per N
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