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Test Case.Two Servovalves working in unison.....

Test Case.Two Servovalves working in unison.....

Test Case.Two Servovalves working in unison.....

(OP)
I have an application using 2 hydraulic actuators to stroke a shock strut (s.strut is the Test Article) that is held in a test rig.  Both actuators push & pull on the end of the test article and I want them always to act together at the same time otherwise I may put a torque on the test article and it may jam.  I am using 2 Moog D683 Servovalves, one per actuator.  Should the two C1 lines, and C2 lines from each servo/actuator combo be connected together so they push or pull on the test article at the exact same time?  Are there any problems with such an approach?  Is there a better way?  Thanks in advance.

Jason

RE: Test Case.Two Servovalves working in unison.....

that is a good idea, connect them together to a point and then fan out to each actuator. i would put a check valve (non return) at the discharge port of each servo so in case one of the servos fails you would not be back-feeding thru it.
the other option would be to use a bigger servo to feed both actuators.
HTH

saludos.
a.

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