Vickers - S.G. MorrisThe EPQ series 3-port cartridge valves are based on the general design concepts...

Vickers ®

3-Way Cartridge Valves with Spool Position Feedback

Type CVU-**-EPQ; Sizes 32 and 50Flow Rates up to 750 L/min (200 USgpm)Maximum Pressure: 315 bar (4500 psi)

This product has been designed and tested to meet speci�c standards outlined in the European Electromagnetic Compatibility Directive (EMC) 89/336/EEC,amended by 91/263/EEC, 92/31/EEC and 93/68/EEC, article 5. For instructions on installation requirements to achieve e�ective protection levels, see thislea�et and the Installation Wiring Practices for Vickers® Electronic Products lea�et 2468. Wiring practices relevant to this Directive are indicated by Electromagnetic Compatibility (EMC).


2

Contents

General Description and Functional Symbols Page 3System Components for Flow Control Mode Page 4System Components for p/Q Mode Page 4

Model Codes: CVU-**-EPQ Cartridge valve and KBSDG4V-3...EN83 pilot valve Page 5

CVU-**-EPQ Cartridge Valve:Operating Data Page 6Performance Data:

Pressure Gain and Signal/Flow Rate function Page 7Frequency Response Page 8

Installation Dimensions Page 9

Pocket Machining details for CVU-32-EPQ1 Pages 10 & 11

Pocket Machining details for CVU-50-EPQ2 Pages 12 & 13

KBSDG4V-3...EN83 Pilot Valve:Installation Dimensions Page 14Integrated Electronics: Block Diagram Page 15Integrated Electronics: Wiring Connections Page 16

Application Data Page 17


3

This catalog presents the 3-port cartridge valve,type CVU-**-EPQ, as the primary functionalelement in two types of system:1. Flow controland2. p/Q, pressure and flow control.

The hydraulically operated CVU-**-EPQ valve mustbe controlled by a separate proportional-solenoid-operated pilot valve, for which recommendationsare included in the catalog. The size 3 pilot valve isavailable with integral control electronics, valvetype KBSDG4V-3, allowing direct connection withthe user's control system.

The 3-way function provides fully controllablethrottling action between service port “A” and eitherinlet port “P” or outlet port “T” according to spoolposition, with a closed transient. In the normalcondition (i.e. no hydraulic pilot pressure) the spoolis biased by the integral spring to give the flow path“A” to “T”: this may be referred to as the “failsafe”condition.

These valves are intended for use in open andclosed-loop control systems, and the publishedperformance data herein is applicable only whenthey are used in such systems with the appropriateVickers® pilot valve and associated electronics.

Closed-Loop Pressure Control

The zero overlap condition of the main spoolenables the EPQ valve to be used in a pressurecontrol mode, with the control loop being closed bya pressure transducer sensing pressure in theoutlet port “A”.

Single/Double Pilot Control

Model Type EPQ1

The controlling hydraulic pressure from port “A” ofthe remote pilot valve is connected to the full areaat the top of the spool via connection “X” in themounting interface. Spool position is thendetermined by the relationship between the input(demand) signal and the LVDT feedback position.

Model Type EPQ2

In addition to the pilot connection via port “X”, port“B” of the pilot valve is connected to the spoolannulus area via a second pilot port, “B”, in the 3-way cartridge. Thus the spool is actively controlledin both directions of travel by pilot pressure.

Mounting Face and Pocket Dimensions

The EPQ series 3-port cartridge valves are basedon the general design concepts of 2-port cartridgevalves to ISO 7368 (DIN 24342). That is, they havethe same manifold surface mounting interface, butdiffer in having deeper pocket recesses toaccommodate the longer, 3-way spool. Further-more, these pockets vary according to whether theselected model is single or double-pilot operated,see “Single/Double Pilot Control” below. Full detailsof pocket machining dimensions are given in thiscatalogue.

General DescriptionCVU-**-EPQ

Functional Symbols

CVU-**-EPQ22222Double pilot operation

CVU-**-EPQ11111Single pilot operation

A PT

X

A PT

X

B


4

Flow Control Mode

System Components

For p/Q Mode

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11

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11

sezisllaroF3 275133-20 1

X

B

A

T

P

A

P

T

Demand

4-pin connector7-pin connector

1

3

2 Pilot valve.See pages 14, 15 & 16

CableSee page 9

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The single pilot version, -EPQ1- is shown. The pilotand control recommendations apply equally to thedouble piloted version, -EPQ2-.

X

B

A

T

P

A

P

T

4-pin connector7-pinconnector

1

3

2 Pilot valve.See pages 14, 15 & 16

CableSee page 9

4 PID controller module.

Pressure transducer (not supplied by Eaton):Output options for controller module compatibility:0 to 10V, 4 to 20 mA.

Qp


5

Model Codes

4 Servo Controlled 3-Way Valve

5 Pilot Operation

Applicable to size 32 only:1 - Single pilot operationApplicable to size 50 only:2 - Double pilot operation

6 Mounting Bolts

9 - Metric mounting bolts supplied.

7 Flow Rating

Code EPQ Flow rating:Size L/min USgpm

38 - 32 380 10075 - 50 750 200

8 Design Number

Installation dimensions unchanged for designnumbers 10 to 19 inclusive.

Pilot Valve (with Integral Electronics)

1 Seal Material

F3 - VitonOmit for Nitrile rubber

2 Cartridge Valve Unit

3 Nominal Size

Mounting face (i.e. not pocket) identified as for 2-port cartridge to ISO 7368 (DIN 24342).

32 - 09 (NG32)50 - 11 (NG50)

(F3-)CVU- **- EPQ *- 9- ** - 1*

1 2 5 6 7 83 4

KBSDG4V-3-96L-**-***-H7-1*- EN83

15 1912 18

18 Design number, 10 series

Installation dimensions unchanged for designnumbers 10 to 19 inclusive.

19 Special Features

EN83 - 1. The integral electronics are optimizedfor use with the -EPQ*- valve, and2. The addition and location of a 4-pinsocket for the primary feedbackconnection.

Warning

Valves with integral amplifiers are suppliedwith or without the metal 7-pin plug.To ensure that the EMC rating and IP67 rating areachieved:1. The Vickers® plug, part no. 934939, must becorrectly fitted. The plug retaining nut must betightened with a torque of 2,0 Nm (1.5 lbf ft) toeffect a proper seal.2. The securing nuts of the co-axial 4-pinconnector cable must be correctly fitted andtightened with a torque of 0,5 Nm (0.4 lbf ft).

The specification of these valves is fixed except forthe customer's choice of the 7-pin plug connectionas set out below. See 15

A full description of the model code features can befound in catalog 5071.02/EN/0797/A, (positions 15and 18 conform to this catalog).

12 Rated flow at 70 bar (1000 psi) loop �ppressure drop (for precise details of ratings referto catalog 5071.02/EN/0797/A)

24 - Specify for use with CVU-32-EPQ*40 - Specify for use with CVU-50-EPQ*

15 Electrical connection

PC7 - 7-pin connector without plugPE7 - 7-pin electrical plug with mating halfPH7 - As PE7 but with pin “C” used for enable

signalPR7 - As PC7 but with pin “C” used

for enable signal


6

Operating DataCVU-**-EPQ*

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Btropotdeilppa(erusserplortnoctoliP)Xtropro/dna

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:diulfciluardyHslaesrebburelirtiNhtiW

slaesnotiVhtiW.liociluardyhraew-itnA

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egnarerutarepmetdiulF )F°851ot°4-(C°07ot°02-

noitartliF 31/61/81:)isp0001(rab07otpU[21/51/71:)isp0001(rab07evobA

rof"lortnoCnoitanimatnoCcimetsySotediuG"2319ro165noitacilbupeeS()gninoitidnocdnatnemtaertdiulfnonoitamrofnirehtruf

1QPE-23-UVC 2QPE-05-UVC

gnitarwolflanimoNta � )isp57(rab5=p

nim/L083)mpgSU001(

nim/L057)mpgSU002(

wolfmumixaM nim/L0001)mpgSU362(

nim/L0522)mpgSU495(

cimanydmumixamrofetarwolftoliPesnopser

nim/L61)mpgSU2.4(

nim/L82)mpgSU4.7(

emitesnopseR � :rof:%001ot0egnahclangiS

PS

)isp0541(rab001=P

P)isp5251(rab501=

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rorrelasreveR � %1.0<

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)reifilpmalargetnihtiw(38NE-*1-7H-***-**-L69-3-V4GDSBK

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7

0 2 4-2-4

100

90807060

5040

30

20

10

PA % PS

V

06 8 10-6-8-10

Spool Stroke from Null (% of max.)

0

100

8060

40

20

-20-40

-60

-80

-100

Q (%))

-100 100

0

Command Signal (% of max.)

-20-40-80

-60 2040

6080

Performance DataCVU-**-EPQ

Pressure Gain Flow Rate/Signal Function

A P

TB

A

T

P

X

PS

PA

P � A

A � T


8

Frequency ResponseP

P = 105 bar (1525 psi)

PA = 50 bar (725 psi)

PS = 100 bar (1450 psi)

Performance Data, cont'dCVU-**-EPQ

A P

TB

A

T

X

PS

PA

PP

Sinusoidal input

20406080

100120140160180200

0

10080

10 20 40 60

-10-8-6-4-2

20

100%

100% 5%

5%

45

90

135

010010 20 40 60

-6-4-2

+3

0

25%

25% 5%

5%

1

CVU-EPQ*-50

Ampl

itude

Rat

io (d

B)

Phas

e la

g, d

egre

es

Ampi

tude

Rat

io (d

B)

Phas

e la

g, d

egre

es

CVU-EPQ*-32

±±

±±

±±

± ±

Frequency, Hz

Frequency, Hz


9

Required to connect KBSDG4V-3 pilotvalve (with integrated electronics):

Connector Cable, 300mm (12�)

Part no. 02-331572; (plug molded oneach end), to be ordered separately.

Cartridge dimensions below this faceconform to dimensional requirementsof pockets as shown on pages 10,11, 12 and 13.

For details of equivalent inch/UNCbolts see pages 11 and 13.

�

�

Approx. 300 (12)

D toremove valve

E bolts supplied

A

B

C

D

Orientation pin2 bolt holes (at opposite corners) are thru-tapped G thread to facilitate use of jacking bolts when extracting cover from manifold.

9 (0.35) for plug removal

M12 thread

2 (0.1)

H

Mounting surface J

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ABCD

stlobE �)tffbl(mNeuqrottloB

daerhtGH

)0.4(201)4.2(06

)74.5(931)14.9(932

05x61Mx4)012(582

02M)6.2(56

)5.5(041)4.2(06

)25.6(6,561)0.31(5,03307x02Mx4

)924(08542M

)26.2(5,66

Installation Dimensions in mm (inches)CVU-32/50-EPQ*

3rd angleprojection


10

15

A

15

15

VAU

d1

d2

YRmax

YRmax

YRmax

ZRmax

ZRmax

ZRmax

d3

d4

t10

t4

t3 t1

t11

d5

d5

t6

t7t8

t2

P

T

A

ZRmax

U A

U A

t9

t12

Insert Cavity DimensionsCVU-32-EPQ1, mm (inches)

� The radial orientation of ports “P” and “T” aboutthe center line of the pocket is not critical to theperformance of CVU-**-EPQ* valves.

X b

x3

y1

x4

y2

x2 x1

a min.

Datum point

g1 dia. x g

2 deep

(for orientation pinfitted in cover)

Port X:d

7

4 holes tapped d6 by t

5

minimum depth full thread

a min.

Note that top mounting face, including location andsizing of mounting bolts and port X, conforms toISO 7368 and DIN 24342 (standards for 2-portcartridge valves). The pocket geometry is unique to3-port valves.


11

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a )20.4(201

b � )14.4(211

d1

.aid )2263.2/0463.2(000,06/030,06

d2

.aid )382.2/582.2(000,85/030,85

d3

.aid )561.2/661.2(000,55/030,85

d4

.xam.aid )01.1(82

d5

.xam.aid )20.1(62

d6

daerht � 61M

d7

.xam.aid )513.0(8

g1

lanimon.aid )632.0(6

g2

.nim )513.0(8

t1

)007.1/427.1(2,34/8,34

t2

)811.0(3

t3

Y(.nimxamR) )3.1(33

t4

)890.0(5,2

t5

htped.nim � )49.0(42

t6

)81.1(03

t7

Y(.nimxamR) )3.2(5,85

t8

)533.3/853.3(7,48/3,58

t9

)1.0(5,2

t01

)339.3/149.3(9,99/1,001

t11

)18.2(5,17

t21

)15.0(31

U )2100.0(50,0

V )400.0(10,0

x1

� )873.1(53

x2� )632.0(6

x3

� )657.2(07

x4

� )907.0(81

y1

� )83.1(53

y2� )657.2(07

YxamR

)sehcniorcim023(norcim8

ZxamR

)sehcniorcim005(norcim5,21

� Minimum space required for slip-in valve(insert) & cover. Also minimum centerline tocenterline distance for two identical cavities in amanifold block.

� For customers wishing to use UNC mountingbolts, recommendations for thread size and tappingdepths are given in the following table.

� Dimensional tolerance is ± 0,2 (0.008).

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noisnemiD ledoM

d6

daerht 11-"8/5

t5

htped.nim )83.1(53


12

Insert Cavity Dimensions; CVU-50-EPQ2, mm (inches)

a min.

X b

x3

y1

x4

y2

x2 x1

a min.

Datum point

Port X:d9

g1 dia. x g

2 deep

(for orientation pinfitted in cover)

4 holes tapped d8 by t

14

minimum depth full thread

d5

d4 U A

t4

t5

t7

t8

AV

t12

V

t11

t1

t9

15

ZRmax

15

ZRmax

15

ZRmax15

ZRmax

15

ZRmaxAd1

U AYRmax

t2

t3

t6 t10

t13

d3 U A

YRmax

YRmax

d2

YRmax

d6

d6

d7

P

T

A

YRmax

R0.05 (.002 rad)

Note that top mounting face, including location andsizing of mounting bolts and port X, conforms toISO 7368 and DIN 24342 (standards for 2-portcartridge valves). The pocket geometry is unique to3-port valves.

� The radial orientation of ports “P” and “T” aboutthe center line of the pocket is not critical to theperformance of CVU-**-EPQ* valves.


13

� Minimum space required for slip-in valve(insert) & cover. Also minimum centerline tocenterline distance for two identical cavities in amanifold block.

� For customers wishing to use UNC mountingbolts, recommendations for thread size and tappingdepths are given in the following table.

� Dimensional tolerance is ± 0,2 (.008).

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d6

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a )15.5(041

b � )19.5(051

d1

.aid )3345.3/545.3(000,09/530,09

d2

)484.3/684.3(005,88/535,88

d3

.aid )524.3/724.3(000,78/530,78

d4

.aid )776.2/876.2(000,86/030,86

d5

xam.aid )37.1(44

d6

.xam.aid )35.1(93

d7

.xam.aid )042.0(01,6

d8

daerht � 02M

d9

.xam.aid )493.0(01

g1

lanimon.aid )513.0(8

g2

.nim )513.0(8

t1

)816.5/146.5(7,241/3,341

t2

Y(.nimxamRd:

4) )17.0(81

t3

)314.3/374.3(7,68/3,78

t4

Y(.nimxamRd:

3) )751.1(04

t5

)6.2(66

t6

Y(.nimxamR

)1d: )38.0(12

t7

)890.0(5,2

t8

)751.0(4

t9

)38.0(12

t01

)241.1(92

t11

Y(.nimxamRd:

2) )6.2(66

t21

)8.4(221

t31

)294.6/005.6(9,461/0,561

t41

)81.1(03

U )200.0(50,0

V )4000.0(10,0

x1

� )969.1(05

x2� )513.0(8

x3� )739.3(001

x4� )787.0(02

y1� )969.1(05

y2� )739.3(001

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ZxamR

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14

F

A G

B

C

D

E

7-pin plug connections

View of pins of fixed half.


1

2 3

4

Pin 1 SignalPin 2 +15 VPin 3 0 VPin 4 Not used

View on LVDT

Installation Dimensions in mm (inches)Pilot Valve with Integral ElectronicsKBSDG4V-3...EN83

This drawing provides dimensions and informationnecessary to install this valve.For full comprehensive data on the valve refer tocatalog 5071.02/EN/1197/A.

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ABCCDEFG

)+(evitisopylppusrewoPV0rewoP

)7EP&7CP(V0rotinoM/dnammoC)7RP&7HP(elbaneevlaV

tupnignitrevni-non-)+(langisdnammoCtupnignitrevni-)–(langisdnammoC

tuptuorotinoMdnuorgevitcetorP

� Mounting surface seals supplied.“Mounting surface conforms to ISO 4401, size 03 (ANSI/B93.7M, size 03).“Mounting surface dimensions and details of Vickers subplates can be found in catalog C-2335.

3rd angleprojection

21(0.83)

116(4.57)

X X

X X

151 (5.94)

227 (8.93)

13,75 (0.54)

48 (1.89)

Port ALC

Port BLC

4-pin socket

Amplifier and solenoid assemblymay be rotated 90° as shown byremoving 4 screws shown X.Re-torque to 7-9 Nm (6-7 lbf ft)

7-pin connector plug.See below for connection details.Air bleed screw:

Socket Head Cap Screw.Torque to 2,5-3,0 Nm (2.0-2.5 lbf ft)

This product has been designed and tested to meet specific standards outlined in the European Electromagnetic Compatibility Directive (EMC) 89/336/EEC,amended by 91/263/EEC, 92/31/EEC and 93/68/EEC, article 5. For instructions on installation requirements to achieve effective protection levels, see thisleaflet and the Installation Wiring Practices for Vickers® Electronic Products leaflet 2468. Wiring practices relevant to this Directive are indicated by Electromagnetic Compatibility (EMC).


15

Electrical DataPilot Valve with Integral ElectronicsKBSDG4V-3...EN83

Electrical Block Diagram

KBSDG4V-3...EN83 Wiring

Connections must be made via the 7-pin plugmounted on the amplifier. See next page andInstallation Wiring Practices for Vickers® ElectronicProducts, leaflet 2468.

Recommended cable sizes

Power cables:

For 24V supply:0,75 mm2 (18 AWG) up to 20m (65 ft)1,00 mm2 (16 AWG) up to 40m (130 ft)

Signal cables:

0,50 mm2 (20 AWG)

Screen (shield):

A suitable cable would have 6 cores and an overallscreen.Cable outside diameter 8,0-10,5 mm (0.31-0.41 inches)

stuptuOdnaslangiSdnammoC

gulpnip-7 wolF:noitcerid

QPE-**-UVCDniP EniP

evitisoP VO

AotPVO evitageN

UD

U-E

evitisoP=

evitageN VO

TotAVO evitisoP

UD

U-E

evitageN=

Warning

All power must be switched offbefore connecting or disconnecting any plugs.

Offset

Modulator

Solenoid drive

Valve envelope


+24V AB

D

E

F

G

Power 0V Monitor 0V

Protective ground

Non-inverting

Inverting

Commandsignalvoltage,see table

Compensation network

+15V0V

-15V

+24V

LVDTC

Monitor output

+24V

Gain


Signal

Ref. 0V

+15V

Not used

Note: In valves with PH7 or PR7 type electrical connection,pin C is used for a valve enable signal.


16

0V must be connected to ground

0V

User Panel

Power Supply

Demand Signal

SpoolPosition Monitor

+24V

10V

Valve must be connected toground viasubplate

Connector shell

Outer Screen

AB

D or E

0V

0V

C

Drain Wire

Inner Screen

E or D

G

F

Enable Signal

+8.5Vto 36V

0V

Pilot valve modelKBSDG4V-3..PR7/PH7..EN83

Output

+/-

Electrical DataPilot Valve with Integral ElectronicsKBSDG4V-3....EN83

Wiring Connections

Wiring Connections for Valves with “Enable” Feature

� Note:In applications where the valve must conform toEuropean RFI/EMC regulations, the outer screen(shield) must be connected to the outer shell of the7-pin connector, and the valve body must befastened to the earth ground. Proper earthgrounding practices must be observed in this case,as any differences in command source and valveground potentials will result in a screen (shield)ground loop.

Warning

Electromagnetic Compatibility (EMC)It is necessary to ensure that the valve is wired up as above. For effective protection the user electrical cabinet, the valve subplate or manifold and

the cable screens should be connected to efficient ground points. The metal 7-pin connector part no. 934939 should be used for the integral amplifier.In all cases both valve and cable should be kept as far away as possible from any sources of electromagnetic radiation such as cables carrying heavy current,relays and certain kinds of portable radio transmitters, etc. Difficult environments could mean that extra screening may be necessary to avoid the interference.It is important to connect the 0V lines as shown above. The multi-core cable should have at least two screens to separate the demand signal and monitor outputfrom the power lines.The enable line to pin C should be outside the screen which contains the demand signal cables.

� Spool position monitor voltage (pin F) will bereferenced to the KB valve local ground. A “localground” (pin C) is provided on PC7/PE7 versions foroptional use by differential input customer suppliedelectronics.

Warning

Do not ground pin C.

If the local ground (pin C) is not usedfor differential monitor electronics, do not use.Read monitor pin F with respect to ground.

Output

User Panel

Power Supply

Demand Signal

SpoolPosition Monitor

0V must be connected to ground

Enclosure

+24V0V

+/-10V Valve must be connectedto groundvia subplate

Connector shell

Outer Screen

A

B

D or E0V

0V

C

Drain Wire

Inner Screen

G

F

�

Pilot valve modelKBSDG4V-3..PC7/PE7..EN83


17

InstallationThe proportional valves in this catalog can bemounted in any attitude.

For the KBSDG4V-3 pilot valve it may be necessaryin certain demanding applications, to ensure thatthe solenoid is kept full of hydraulic fluid. Goodinstallation practice dictates that the tank port andany drain port are piped so as to keep the valvesfull of fluid once the system start-up has beencompleted.

Mounting Bolt KitsFor CVU-**-EPQ

Metric bolts are supplied with all models.

For K(B)SDG4V-3

BK02-156493M (metric)BK590716 (inch)If not using Vickers recommended bolt kits, boltsused should be to ISO 898, 12.9 or better.

Seal KitsFor CVU-**-EPQ:

Standard nitrile rubber seals:CVU-32-EPQ1 .................................... 02-350905CVU-50-EPQ2 .................................... 02-358138Viton seals:F3-CVU-32-EPQ1 ............................... 02-350906F3-CVU-50-EPQ2 ............................... 02-358139

For pilot valve:

KBSDG4V-3-1* .................................. 02-332693

Plugs7-pin plug:KBSDG4V-3....EN83;7-pin plug:KBSDG4V-3....EN83;7-pin plug:KBSDG4V-3....EN83;7-pin plug:KBSDG4V-3....EN83;7-pin plug:KBSDG4V-3....EN83;7-pin plug (metal) ................................... 934939*(Recommended plug for EMC and IP67 protection)7-pin plug (plastic) ...................................694534(For use only where EMC and IP67 protection is notrequired)

Note:Note:Note:Note:Note: An alternative metal connector which givesEMC protection rating is available from ITT-Cannon,part number CA02-COM-E-14S-A7-S. For IP ratingconsult the manufacturer.

* Plug 934939 is fitted to the pilot valve when“PE7” or “PR7” is specified at Model Code position15.

4-pin plug, KBSDG4V-3...EN834-pin plug, KBSDG4V-3...EN834-pin plug, KBSDG4V-3...EN834-pin plug, KBSDG4V-3...EN834-pin plug, KBSDG4V-3...EN83and CVU-**-EPQ:and CVU-**-EPQ:and CVU-**-EPQ:and CVU-**-EPQ:and CVU-**-EPQ:The molded-on plug(s) of the connecting cablecorrectly fitted and tightened gives EMC and IP67protection.

Service InformationThe products from this range are preset at thefactory for optimum performance; disassemblingcritical items would destroy these settings. It istherefore recommended that should anymechanical or electronic repair be necessary theyshould be returned to the nearest Vickers repaircenter. The products will be refurbished asnecessary and retested to specification beforereturn.

Field repair is restricted to the replacement of theseals.

Note:Note:Note:Note:Note: Customers are strongly advised not toattempt to disassemble any of the electronics,feedback devices or solenoid assemblies installedin these valves.

Application Data

Fluid CleanlinessProper fluid condition is essential for long andsatisfactory life of hydraulic components andsystems. Hydraulic fluid must have the correctbalance of cleanliness, materials and additives forprotection against wear of components, elevatedviscosity and inclusion of air.

Recommendations on contamination controlmethods and the selection of products to controlfluid condition are included in publication 9132 or561, “Guide to Systemic Contamination Control”.The book also includes information on the conceptof “ProActive Maintenance”. The followingrecommendations are based on ISO cleanlinesslevels at 2 µm, 5 µm and 15 µm.

For products in this catalog the recommendedlevels are:0 to 70 bar (1000 psi) .......................... 18/16/1316/1316/1316/1316/1370+ bar (1000+ psi) ............................ 17/15/1215/1215/1215/1215/12

Vickers® products, as any components, willoperate with apparent satisfaction in fluids withhigher cleanliness codes than those described.Other manufacturers will often recommend levelsabove those specified.

Experience has shown, however, that“life of anyhydraulic components is shortened in fluids withhigher cleanliness codes than those listed above.These codes have been proven to provide a longtrouble-free service life for the products shown,regardless of the manufacturer.

Hydraulic FluidsMaterials and seals used in the K(B)SDG4V-3valves are compatible with antiwear hydraulic oils,and with non-alkyl-based phosphate esters.

Standard (nitrile rubber) seals in the CVU-**-EPQcartridge valves are suitable for use only withantiwear hydraulic oils. When fitted with Viton seals(specifiy “F3-” in Model Code 1 ), these valvesare suitable for use with non-alkyl-basedphosphate esters.

The fluid extreme operating viscosity range is 500to 13 cSt (2270 to 70 SUS) but the recommendedrunning range is 54 to 13 cSt (245 to 70 SUS). Forfurther technical information about fluids see“Technical Information” leaflet B-920 or I-286S.

© 2009 Eaton CorporationAll Rights ReservedPrinted in USADocument No. V-VLSP-MC001-ESupersedes 11-05-0002 EN 1000March 2009

EatonFluid Power GroupHydraulics Group USA14615 Lone Oak RoadEden Prairie, MN 55344USATel: 952-937-9800Fax: 952-294-7722www.eaton.com/hydraulics

EatonFluid Power GroupHydraulics Group EuropeRoute de la Longeraie 71110 MorgesSwitzerlandTel: +41 (0) 21 811 4600Fax: +41 (0) 21 811 4601

EatonFluid Power GroupHydraulics Group Asia Pacific 11th Floor Hong Kong New World Tower 300 Huaihai Zhong Road Shanghai 200021 China Tel: 86-21-6387-9988 Fax: 86-21-6335-3912

Vickers - S.G. MorrisThe EPQ series 3-port cartridge valves are based on the general design concepts...

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Transcript of Vickers - S.G. MorrisThe EPQ series 3-port cartridge valves are based on the general design concepts...