200
    450
    550
    590
    650
    890
    1650

Electrohydraulic Servovalve

High performance two-stage servovalve. Flow ratings from 1 to 20 GPM at 1000 PSI. Force feedback spring connects torque motor to second stage. Jeweled feedback ball will give you a longer lasting glitch free servovalve.

Threshold

< 0.5% without dither

Hysteresis

< 3.0% without dither

Null Bias

< 2.0%

Null Shift

   100° (40° C) Temp Range
   80% to 110% Pressure Range

< 2.0%
< 2.0%

Pressure Gain

> 30% supply pressure for 1% rated signal can be up to 100%

Supply Pressure

   Minimum for spool movement
   Minimum recommended
   Maximum continuous

50 PSI (3.5 Bar)
200 PSI (15 Bar)
4000 PSI (280 Bar)

Proof Pressures

   At pressure port
   At return port

150% Max. supply pressure
100% Max. supply pressure

Burst Pressure

   Return port open
   External leakage
   Operating temperature range

250% Max. supply pressure
0
-22° to +248° F (-30° to +120° C)

Fluid
   
   

Petroleum based hydraulic fluid 60 to 450 SUS at 100° F
(10 to 110 CST at 38°C)

Seal Material

Medium Nitrile std. (others available).

Flow Raiting GPM (L/Min) | 1000 PSI (70 bar)

Null Leakage GPM (L/Min) | 1000 PSI (70 bar)

1.0 (3.8)

< .17 (.66)

2.5 (9.5)

< .22 (.83)

5.0 (19)

< .35 (1.33)

10 (38)

< .35 (1.33)

15 (57)

< .35 (1.33)

MA

Ohms

MA

Ohms

10

1000

15

200

15

350

20

1200

30

300

30

800

40

50

50

80

60

40

80

22

100

27

200

22

Seal material (Buna, Viton & EPR)

Special lap conditions

Alternate electrical connections

Magnetic null adjust

Stainless steel body for 5000 PSI

Global Servo Links

Home - Global Servo Hyrdaulics
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Reference - our reference guide to find your product series.
Glossary - our library of industry terminology.
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About - learn a little bit more about GSH.

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Global Servo Hydraulics Inc.

Global Servo aims to be the best in the servo hydraulic industry. Global Servo is an international company specializing in sales and service for all machine applications using Hydraulic Servo and Proportional systems. Global Servo supports customers from Plastics, Fatigue Testing, Flight Simulation Controls & Wood Products with test stands capable to meet any needs. Quality, Competitive Pricing & Customer Service are the basic fundamentals that have built a reputation for Global Servo as being one of the top servo repair facilities in North America

© 2009 Global Servo Hydraulics, Inc.