Jet Pipe Servovalves - Welcome to The Myles Group Atchley.pdfthe force exerted on the jet pipe....

Jet Pipe Servovalves

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1

JET PIPE SERVOVALVESPRINCIPLES OF OPERATION

SERVOVALVE OPERATING PRINCIPLES

The two-stage electrohydraulic flow control servovalve converts an electricalsignal to precise proportional hydraulic flow.The servovalve can be separated intotwo stages:

➢ The first stage pilot includes the torque motor, projector jet and receiver

➢ The second stage body includes the spool and sleeve assembly

Hydraulic fluid at system pressure travels through the first stage wire mesh filterinto a feedtube (Figure 1a) and out the projector jet.The projector jet directs thishydraulic fluid stream at two receivers, each of which is connected to the secondstage spool end chambers.

The first stage torque motor receives an electrical signal applied as current to thecoils, and converts it into a mechanical torque on the armature and jet pipe assembly.The torque output is directly proportional to the input current.As more current isapplied to the valve, greater forces are exerted to rotate the armature assemblyaround its pivot point.

The jet pipe andreceiver are made ofhard, wear resistantmaterials for long life.

Spool and O-Ring sleeve providelow wear chracteristics andperformance stability.

Durable body supports torquemotor and houses filter, spooland sleeve.

Force feedback from the spoolto the torque motor jet isaccomplished by a stainless steelspring.The spring is rigidly attachedto the jet pipe.

Stainless steel wire mesh 150micron absolute filter protects firststage from large contaminants.

Modular torque motor consists ofpermanent magnets, pole piecesand coils. A movable armature ismounted onto a frictionless pivotspring. A seal between the electro-mechanical and hydraulic sectionsensures dry torque motor operation.

Projector jet pipeassembly is attachedto the torque motorarmature.

Receiver orifices areconnected to thespool end chambers.

2

As the jet pipe and armature of thetorque motor rotate around the pivotpoint (the result of input current), thefluid jet is directed to one of the tworeceivers creating a higher pressure inthe spool end chamber connected tothat receiver.The differential pressurecreated across the spool moves it inthe direction opposite to the jetdisplacement. (See Figure 1b.)

Connected to the spool and jet pipe isa feedback spring assembly, whichtranslates spool position into a forcethat is applied on the jet pipe in aproportional manner. Increased spooldisplacement away from null, increasesthe force exerted on the jet pipe.Forces transmitted from the spool tothe jet pipe are opposing the forcestrying to turn the armature jet pipeassembly.When the feedback springforce is equal to the forces from the

torque motor, the jet is returned toa position exactly between the tworeceivers.As mentioned before, sucha position creates a pressure balancebetween the end chambers; then thespool will hold its position.(See Figure 1c.)

Since the torque motor forces areproportional to input current and thefeedback forces are proportional tospool position, the resulting spoolposition is proportional to inputcurrent. Increasing current to thetorque motor shifts the spool fromnull position.

Reversing polarity of the appliedcurrent, reverses forces on thearmature and jet pipe.The hydraulicjet flow impinges on the otherreceiver, creating an imbalance in spoolend chamber forces.The spool moves

in an opposite direction until a firststage force balance is achieved by thefeedback spring. Jet flow is thendirected between the receivers andequal pressure holds the spool inposition.

Figure 1a - At Neutral Figure 1b - With Input Current Figure 1c - Stabilized with Current

SERVOVALVE OPERATION

At first stage null, the jet is directedexactly between the two receivers,making the pressures on both sidesof the spool equal.The force balancecreated by equal pressures in bothend chambers holds the spool in astationary position. (See Figure 1a.)

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Figure 2a illustrates flow out A of a four-way servovalve when the first stagepilot displaces the spool to the right.This movement opens slotted ports in thesleeve and fluid is metered from the supply pressure port to control port A, andfrom control port B to the return pressure port T.

Reversing spool motion to the left of the null position (Figure 2b) directs fluidfrom the supply pressure port to control port B and from control port A to thereturn pressure port T.

Square slotted ports with the above spool motion gives a proportional flowoutput.This is demonstrated with Figure 3: Flow vs. Current Plot. Flow output ofthe servovalve changes in magnitude directly proportional to the level andpolarity of the input current.

Flow AFlow(GPM)

Current [mA]+

Flow B

–

Figure 3 - Flow vs. Current Plot

Figure 2a - Flow out A Figure 2b - Flow out B

SPOOL PORTING

JET PIPE SERVOVALVESPRINCIPLES OF OPERATION

4

The torque motor is located in theservovalve first stage and provides ameans of converting an electrical inputto a mechanical output.The term“torque” refers to the armaturerotational motion around its pivot point,resulting from electrical and magneticforces.This torque is instrumental in theservovalve electrical to mechanicalpower transfer.

The torque motor has an armaturemounted on a torsion pivot spring andsuspended in the air gaps of a magneticfield (Figure 4a).The two pole pieces,one polarized north and the othersouth by the permanent magnets, formthe framework around the armatureand provide paths for magnetic fluxflow.When current flows through thecoils, the armature becomes polarizedand each end is attracted to one polepiece and repelled by the other (Figure4b).The torque exerted on thearmature is restrained by the torsionspring upon which the armature ismounted.This torsion spring makesarmature output motion proportionalto input current.

The rotational torque created is directlyproportional to the amount ofpolarization or magnetic charge of thearmature - increased armaturepolarization creates a higher forceattraction to the pole pieces. Since theamount of polarization of the armatureis proportional to the magnetic fluxcreated by the current through thecoils, torque output of the torquemotor is proportional to the coil inputcurrent.The magnetic flux created bythe coils is dependent on two factors:the number of coil wire turns and thestrength of current that is applied. Inother words, the torque of the motor isdependent on the ampere turns applied.

When armature polarization is reversedby input current polarity, the armatureis attracted to the opposite pole piecesand the jet deflects to the oppositereceiver.

TORQUE MOTOR SCHEMATIC

Figure 4a - Neutral Position Figure 4b - Energized Position

ArmaturePivot

Upper Pole

Coil (2)

Magnet (2)

Armature

Air Gap (4)

Lower Pole

Jet Pipe

I I

Rated Flow @ 1000 psid - ± 10%

Null Bias <± 2%

Null Flow Gain 50 to 150% nominal

Linearity < 7%

Hysteresis < 3%

Threshold < 0.2%

Temperature Null Shift <± 2% with 100°F variation (56°C)

Supply Pressure Null Shift <± 2% with 1000 psi change (70 bar)

Return Pressure Null Shift <± 2% from 0 to 100 psi (7 bar)

Pressure Gain >30% of supply pressure @ 1% rated current

STATIC PERFORMANCEOperating Pressure*ports P, X,A and B 3,000 psi (210 bar)

(optional 5000 psi (350 bar)port T up to 3,000 psi (210 bar)

Temperature RangeFluid -4°F to 176°FAmbient: -40°F to 250°F

Seal Material Viton A, others on request

Operating Fluid Compatible with common hydraulic fluids, other fluids on request.

Recommended viscosity 60 – 450 SUS @ 100°F

System FiltrationHigh pressure filter (without bypass, but with dirt alarm) mounted

in the main flow and, if possible, directly upstream of the valve.

Class of CleanlinessThe cleanliness of the hydraulic fluid greatly effects the

performance (spool positioning, high resolution) and wear (meteringedges, pressure gain, leakage) of the servovalve.

Recommended Cleanliness ClassFor normal operation ISO 4406 < 14/11For longer life ISO 4406 < 13/10

Recommended Filter RatingFor normal operation ß10 ³ 75 (10 µm absolute)For longer life ß5 ³ 75 (5 µm absolute)

Installation Operations Any position fixed or movable.

Vibration 30 g, 3 axes

Degree of Protection EN50529P: class IP65, with matingconnector mounted.

Shipping Plate Delivered with an oil sealed shipping plate.

* Maximum special order is 5,000 psi

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JET PIPE SERVOVALVESGENERAL TECHNICAL DATA

ELECTRICAL STANDARDS

ELECTRICAL CHARACTERISTICS

A wide choice of coils is available for a variety of rated currentrequirements.The four torque motor coil leads are attached to theconnector so external connections can provide series, parallel orsingle coil operation. Servovalve coils should be driven with currentto provide consistency throughout the temperature range.

ParallelSeries Single

GR

N

GR

N

YEL

YEL

RED

RED

WH

TW

HT

A B C D

A B C D

Rated Current Coil Resistance50, 20, 10 mA (standard) 80, 250, 1000 ohms per coil (standard)

Connector PolarityMS3102E-14S-2P A+ B- flow out cylinder Port B

C+ D- flow out cylinder Port B

Connector PolarityPC02H-8-4P A+ B- flow out cylinder Port A

C+ D- flow out cylinder Port A

Ohms mA V mA V mA V

27 50 2.7 100 1.4 100 2.7

80 25 4.0 50 2.0 50 4.0

81 20 3.2 40 1.6 40 3.2

250 10 5.0 20 2.5 20 5.0

1000 5 10 10 5.0 10 10.0

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JET PIPE SERVOVALVESELECTRICAL CHARACTERISTICS

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INSTALLATION DRAWING

Rated Flow0.25 to 5 GPM @ 1000 psi drop

Internal Leakage< 0.25 GPM @ 1000 psi

Connector LocationPort B (standard)

Weight1.1 lbs. (0.50 kg)

Mounting BoltThread: #10-32 UNF (M5)Length: 2.0 in. (50 mm)

208A-505TYPICAL CHARACTERISTIC CURVES

Step Response Frequency Response

Port SizeØ 0.173 (Ø 4.4)

O-RingMS28775-011

Pilot PortØ 0.093 (Ø 2.4)

O-RingMS28775-010

TECHNICALSPECIFICATIONS

100

80

60

40

20

00 1.5 3 4.5 6 7.5

Str

oke

(%

)

Time (milliseconds)

3000 psi (210 bar)

0

-3

-6

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10 20 40 60 80100 200 300400

Am

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Pha

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degr

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2

180

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120

90

60

30

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–––– ±20% Input Current- - - - ±100% Input Current

3000 psi (210 bar)

JET PIPE SERVOVALVESMODEL 208A

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Field Replaceable Filter75 micron absoluteP/N 55319



209-505TYPICAL CHARACTERISTIC CURVES


O-RingMS28775-011



100

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oke

(%

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3000 psi (210 bar)

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3000 psi (210 bar)

JET PIPE SERVOVALVESMODEL 209









Port sizeØ 0.281 (Ø 7.14)

O-RingMS28775-011


O-RingMS28775-010


100

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00 1.5 3 4.5 6 7.5

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oke

(%

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Time (milliseconds)

3000 psi (210 bar)

0

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2

180

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3000 psi (210 bar)


9

10




Field Replaceable Filter75 micron absoluteP/N 55396





O-RingMS28775-011


O-RingMS28775-010



100

80

60

40

20

00 2 4 6 8 10

Str

oke

(%

)

Time (milliseconds)

3000 psi (210 bar)

0

-3

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10 20 40 60 80100 200 300 400

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180

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3000 psi (210 bar)







Mounting BoltThread: 5/16-18 (M8)Length: 2.0 in. (50 mm)




O-RingMS28775-013


O-RingMS28775-012


100

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00 2 4 6 8 10

Str

oke

(%

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Time (milliseconds)

3000 psi (210 bar)

0

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3000 psi (210 bar)

11










O-RingMS28775-013



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oke

(%

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Time (milliseconds)

3000 psi (210 bar)

0

-3

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10 20 40 60 80100 200 300 400

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2

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3000 psi (210 bar)

12


Rated Flow20 to 40 GPM @ 1000 psi drop





13




O-RingMS28775-018



100

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00 4 8 12 16 20

Str

oke

(%

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Time (milliseconds)

3000 psi (210 bar)

20 gpm

40 gpm0

-3

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3000 psi (210 bar)


14






Mounting BoltThread: 5/16-18 (M8)Length: 1.25 in. (35mm)




O-RingMS28775-016


100

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oke

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3000 psi (210 bar)

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3000 psi (210 bar)


15

2 0 9 - 5 0 5









O-RingMS28775-019


O-RingMS28775-012



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oke

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3000 psi (210 bar)

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3000 psi (210 bar)


162MECHANICAL FEEDBACK ACTUATOR

200PNSINGLE-STAGE SERVOVALVE

162AMECHANICAL FEEDBACK ACTUATOR

204PNTWO-STAGE SERVOVALVE

161MECHANICAL FEEDBACK ACTUATOR

The Model 162A has the same bore, stroke and stall force asthe Model 162, but has an increased no-load velocity of 3.5inches per second (89 mm per second).

This integral package contains servovalve, actuator andfeedback mechanism to provide closed-loop position controlwithout the need for an electrical feedback transducer.Aninput signal of 0 to 10 volts gives a directly proportionalactuator position which corrects for any load changes.Thiscost effective package is available with a 1.0 inch (25.4 mm)bore diameter actuator and stroke lengths of 0.5 inch (12.7mm), 1.0 inch (25.4 mm), 1.5 inches (38.1 mm) and 2.0 inches(50.8 mm).The 1.0 inch bore has a 62 pound (28 kg) stallforce at 80 psi (5.5 bar).

The increased flow rate (4.5 SCFM)controls larger actuators for heaviermovements like heads and arms. Inputsignals of ±20 mA or ±5 volts givesproportional output flow.Tube fittingsbuilt into the body permit quickplumbing connections.

The low flow rate (0.5 SCFM) andsmall package size makes the Model200PN perfectly suited for controllinganimatronic head movements (lips,eyes, mouth, etc.), while keeping thefigure’s head size and weight to aminimum.A proportional input signalof ±20 mA or ±5 volts providesvariable pneumatic flow control.Standard hose fittings screw into thevalve body for ease of installation.

This model has the same features as the Model 161, but isavailable with a 2.0 inch (50.8 mm) bore diameter actuator and2.0 inch (50.8 mm) stroke for a maximum stall force of 250pounds (113 kg) at 80 psi (5.5 bar).

JET PIPE SERVOVALVESPNEUMATIC SERVO PRODUCTS

16

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161 MFBSPECIFICATIONS

Flow into Valve0.8 SCFM @ 100 psi

Piston Diameter1.00 inch

Rod Diameter0.25 inches

Effective AreaExtend 0.785 in2

Retract 0.736 in2

Stall LoadExtend 62 lbs min @

100 psi supplyRetract 58 lbs min @

100 psi supply

No Load Velocity4.0 in/sec min @ 100 psi supply

GENERAL SPECIFICATIONS The following specifications apply to models 161, 162 and 162A.

System Filtration25 micron

FluidDry clean gas

Temperature Range40° to 160°F

PressureOperating 40 to 160 psiProof 250 psiBurst 425 psi

Hysteresis3% max of rated current

Rated Current0 to 40 mA (0 to 10v)

Coil Resistance250 ohms per coil

SealsViton

PolarityActuator extends with polarity shown

Electrical Connection#26 AWG color coded leads

Zero Current Strokeat retract position

GR

N

YEL

RED

WH

TA B C D

STROKE CHART

Model # 'A' DIM ± .032 'B' DIM ± .060Stroke Retracted

161-0.5-YYY 0.5 inch 4.64 inch

161-1.0-YYY 1.0 inch 5.14 inch

161-1.5-YYY 1.5 inch 5.64 inch

161-2.0-YYY 2.0 inch 6.14 inch

INSTALLATIONDRAWING

JET PIPE SERVOVALVESMODEL 161 - PNEUMATIC MECHANICAL FEEDBACK ACTUATOR

18

162 MFBSPECIFICATIONS


Piston Diameter2.00 inches



Retract 3.09 in2



100 psi supply


162A MFBSPECIFICATIONS


Piston Diameter2.00 inches



Retract 3.09 in2



100 psi supply


INSTALLATIONDRAWING

STROKE CHART


162-2.0-YYY 2.0 inch 6.40 inch

STROKE CHART


162A-2.0-YYY 2.0 inch 6.40 inch

INSTALLATIONDRAWING

JET PIPE SERVOVALVESMODEL 162 & 162A - PNEUMATIC MECHANICAL FEEDBACK ACTUATORS

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200PN SPECIFICATIONS

DesignSingle-stage

Flow into Valve0.8 SCFM @ 100 psi supply

No Load Cylinder Flow0.5 SCFM @ 100 psi supply

Pressure Recovery>80% of supply pressure


GENERAL SPECIFICATIONS

System Filtration25 micron

FluidDry clean gas

Temperature Range-40° to 160°F



DesignTwo-stage



Pressure Gain30% of supply pressure @ 2% change of rated current



Threshold0.02% max of rated current

90° Phase Lag200 Hz @ 100 psi supply

-3dB Amplitude Ratio150 Hz @ 100 psi supply

Ports#10-32 x .38 deep tapped holes

Mounting4 holes .156 diameter




Ports1/4" Legris instant fittings for 1/4" diameter plastic tube

MountingFour #10-32 x 3/8 tapped holes


Rated Current±20 mA

Electrical Connection#26 AWG color coded leads

PolarityGreen+,Yellow-, flow out CYL Port 2White+, Red-, flow out CYL Port 2


SealsViton

JET PIPE SERVOVALVESPNEUMATIC SERVOVALVES - TUBE MOUNT

20



DesignSingle-stage



Pressure Recovery>80% of supply pressure

Rated Current±40% mA



GENERAL SPECIFICATIONS

System Filtration25 Micron

FluidDry clean gas

Temperature Range-40° to 160°F

211APN SPECIFICATIONS

DesignTwo-stage

Rated Flow12 SCFM @ 100 psi pressure drop

LeakageInternal 0.2 SCFM @ 100 psiExternal none

Pressure Gain30% supply min @ 2% rated input

90° Phase Lag>40 Hz @ 100 psi supply




Electrical ConnectionBendix Pygmy PCO2H-8-4P

Ports0.12 diameter

Port O-Ring SizeMS28775-012

PolarityA+ B- flow out CYL Port 1C+ D- flow out CYL Port 1


Electrical ConnectorMS3102E-14S-2P

Ports.281 diameter

Port O-Ring sizeMS28775-011 (5th port -010)

PolarityA+ B- flow out CYL Port 2C+ D- flow out CYL Port 2



SealsViton

GR

N

YEL

RED

WH

T

A B C D

GR

N

YEL

RED

WH

T

A B C D


O-RingMS28775-012

Port SizeØ 0.281

O-RingMS28775-011

JET PIPE SERVOVALVESPNEUMATIC SERVOVALVES - MANIFOLD MOUNT

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PROCEDUREALL SERVOVALVES EXCEPT 231

PROCEDUREFOR MODEL 231

PROCEDUREOPTIONAL MAGNETIC NULL ADJ.

SYSTEM FLUSHINGCleaning the hydraulic fluid prior to

initial installation of the servovalve onto a newor overhauled servo system, ensures extendedvalve operating life. Circulating hydraulic fluidthrough the system filters and manuallyexercising load actuators, will remove trappedparticles and built-in contamination.

A new system is especially susceptibleto contamination because particles clinging tonew components can break away wheninitially washed with fluid flow. Hoses mustsustain many hours of flow to flush all residue,and piping must be pickled and passivated.Piping with welded joints likely containsunwanted welding beads. Chunks of O-Ring,lint, metal chips and moisture are a few formsof contamination contributing to componentfailure in a new hydraulic system.

I M P O RTA N T N OT EStart-up failures can be substantially reducedby following proper flushing procedures prior to

Please read “Adjusting Servovalve Null” beforestarting.Required tools:

I ScrewdriverI AlIen wrench (1/16'')

The servovalve null adjustment islocated on the valve torque motor and canbe reached by using a screwdriver to removethe access hole brass plug on the cover. A1/16" Allen wrench can be inserted into thenull adjustment access hole and, whenengaged in the null adjustment, can be rotatedin either direction. If turning one directionincreases actuator drift speed, reverse turningdirection. If actuator drift slows while rotatingthe Allen wrench, keep turning in thatdirection until actuator stops moving. Ifactuator drifts into a stop, it may be necessaryto re-connect the electrical cable and bringthe actuator to center position again.

I M P O RTA N T N OT EAlways remember to replace the nulladjustment access screw.This keeps dirt fromentering the torque motor and extends theoperating life of the servovalve.

Re-connect electrical cable after adjustment iscomplete.

ADJUSTING SERVOVALVENULL

Moog Atchley Controls servovalves arenull adjusted at the factory and installationonto a system may require readjustment.Optimum null adjustment can be achievedwhen done with the equipment upon whichthe servovalve will be used. Control electronicsmust be stable and fluid must be at normaloperating temperature and pressure.

To determine if the servovalve nullneeds adjustment, disconnect the electricalcable from the valve. If the actuator driftsexcessively either direction, the valve null canbe adjusted to stop the drift. It may beimpossible to stop actuator drift completelyand this should not be a concern.The servo-valve null adjustment is not meant to be anabsolute zeroing mechanism. Slowing the driftto a minimum allows the control electronicsto achieve servovalve zero and maintain driftcontrol throughout system operation.


1 Allen wrench (. 050 '')

The servovalve magnetic null adjustmentis a knurled knob located on top of the valvetorque motor cover. Null adjustment is madeby loosening the two locking screws with a.050" Allen wrench and rotating the knurledknob. If turning one direction increasesactuator drift, reverse turning direction. Ifactuator drift slows while rotating theadjustment, keep turning in that direction untilactuator drift stops. Continue adjustment untildrift direction changes and then turn knurledknob in opposite direction until actuatorstops moving. If actuator drifts into a stop, itmay be necessary to re-connect the electricalcable and bring the actuator to centerposition again.

Less than one turn is sufficient to nullthe servovalve. If one turn fails to achieve null,further system troubleshooting is necessary tocorrect the problem.

When adjustment is complete, tightenthe locking screws to prevent knurled knobfrom inadvertent rotation. Re-connectelectrical cable after adjustment is complete.


I Allen wrench (3/16'')

The servovalve null adjustment islocated on the valve body end cap nearestthe torque motor.The null adjustment is a3/16" AIIen screw in the center of the spoolend cap.A 3/16" AIIen wrench can beinserted into the null adjustment and rotatedeither direction If turning one directionincreases actuator drift, reverse turningdirection. If actuator drift slows while rotatingthe Allen wrench, keep turning in thatdirection until actuator drift stops. Continueadjustment until drift direction changes andthen turn Allen wrench in opposite directionuntil actuator stops moving. If actuator driftsinto a stop, it may be necessary to re-connectthe electrical cable and bring the actuator tocenter position again.

I M P O RTA N T N OT ELess than one turn is sufficient to null theservovalve. If two turns fail to achieve null,further system troubleshooting is necessary tocorrect the problem.

Re-connect electrical cable after adjustment iscomplete.

installing servovalves or other sensitivecomponents.A typical flushing procedureincorporates the following:

1. Install a flushing fixture that is servovalvefootprint compatible.The flushing fixture should interconnect thecontrol ports (A and B).

2. Install new filter elements.

3. Circulate the hydraulic fluid at systemoperating pressure for a minimum of 8 hours.The length ofsystem flushing time determines fluid cleanliness.

4. Monitor filter indicators while flushingand change the elements when indicators show excessive contaminationlevels.

5. Stroking cylinders or motors whileflushing dislodges particles trapped in these components.

6. When flushing is complete, remove allfilter elements and replace with new ones.

7. Install servovalves.

JET PIPE SERVOVALVESINSTALLATION PROCEDURES

22

SUBPLATE DRAWING

SUBPLATE CHARTSModel # A B C D E F G H I J

Length Width Height Mounting Mounting Mounting Mounting Ports SAE J514 Bolt Hole Port Circle

208/209 5.0 4.0 1.5 2.875 4.00 1.688 1.688 -4 to -12 .344 .625500-206-X (127.0) (101.6) (38.1) (73.0) (101.6) (42.87) (42.87) (8.7) (15.88)211A/214 5.0 4.0 1.5 2.875 4.00 1.688 1.344 -4 to -12 .344 .780500-205-X (127.0) (101.6) (38.1) (73.0) (101.6) (42.87) (34.14) (8.7) (19.81)

215A 5.0 4.0 1.5 2.875 4.00 1.750 2.562 -4 to -12 .344 .875500-215-X (127.0) (101.6) (38.1) (73.0) (101.6) (44.45) (65.07) (8.7) (22.22)

218 5.0 4.0 1.5 2.875 4.00 1.688 1.344 -4 to -12 .344 .937500-218-X (127.0) (101.6) (38.1) (73.0) (101.6) (42.87) (34.14) (8.7) (23.80)

225 5.0 4.0 1.5 3.25 4.00 3.500 1.75 -8 to -12 .344 1.375500-225-X (127.0) (101.6) (38.1) (82.5) (101.6) (88.90) (44.45) (8.7) (34.93)

231/242 6.0 6.0 2.0 4.0 5.0 2.24 3.000 -8 to -16 .344 Diamond500-231-X (152.4) (152.4) (50.8) (101.6) (127.0) (56.90) (76.20) (8.7)240 6.0 5.0 1.87 4.0 4.5 3.625 2.375 -10 to -24 .390 1.750

500-240-X (152.4) (127.0) (47.5) (101.6) (114.3) (92.07) (60.32) (9.9) (44.45)261 7.0 6.0 2.0 4.75 4.5 2.875 3.375 -12 to -32 .531 2.000

500-261-X (177.8) (152.4) (50.8) (120.6) (114.3) (73.02) (85.72) (13.5) (50.80)290 7.0 6.0 2.0 4.75 4.5 2.75 3.375 -24 to -40 .531 Diamond500-290-X (177.8) (152.4) (50.8) (120.6) (114.3) (69.75) (85.72) (13.5)

OPTIONS

Electrical Connectors➢ MS mating connector P/N 91075➢ Bendix Model PC02H-8-4P (mating

connector P/N 91716)➢ Bendix Model PC02H-8-4P

connector in body (209 & 214 only)➢ Pigtails (4 wires, specify length)

Coils➢ Intrinsically safe coils (FM certified

Class 1, Groups A, B, C and D;Class II, Group G)

➢ High Temperature rated coils (350° F)

➢ A wide selection of electrical current and resistance combinations

➢ Triple redundant coils

Servovalve Model 208/209 211A/214 215A 218 225 242 240 261 290Subplate Model 500-206-C-X 500-205-C-X 500-215-C-X 500-218-C-X 500-225-C-X 500-231-C-X 500-240-C-X 500-261-C-X 500-290-C-X

L -4 -4 -4 – -4 – – -4 -4SAE J514M .438 .438 .438 – .781 – – .750 1.375

(11.13) (11.13) (11.13) (19.84) (19.05) (34.93)N .609 .609 .937 – .875 – – 1.500 1.450

(15.47) (15.47) (23.80) (22.22) (38.10) (36.83)

ADAPTER PLATE

Special Flow Configurations➢ Overlap or underlap➢ Dual flow gain➢ Shaped flow gainConditioning -

Underwater Service➢Vented torque motor cover➢ PigtailsIsolated Pilot Supply

Pressure Port➢ Accepts external pilot supplyRated for 5000 PSI Operation➢ Stainless steel bodyMagnetic Null Adlustment➢ Ease of adjustment➢ Isolates torque motor

A B C D from E to F GLength Width Height Port Circle Port Circle Bolt Hole Thread

Model 53781 3.25 2.5 .588 .780 .875 .344 10-32from .780 to .875 (82.55) (63.50) (14.73) (19.81) (22.22) (8.74)

JET PIPE SERVOVALVESOPTIONS AND MANIFOLD SELECTION

Moog Inc., East Aurora, NY 14052-0018Telephone: 716/655-3000Fax: 716/655-1803 Toll Free: 1-800-272-MOOGhttp://www.moog.com

CDL6684 Rev B 500-374 300

Australia MulgraveBrazil São PauloChina Hong Kong

ShanghaiDenmark CöpenhagenEngland TewkesburyFinland EspooFrance Rungis

Germany BöblingenIndia BangaloreIreland RingaskiddyItaly Brescia

Malnate Japan HiratsukaKorea SeoulLuxembourg Luxembourg CityPhilippines BaguioSingapore SingaporeSpain OrioSweden AskimUSA East Aurora

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