ASV RC100 Relief Valve not working correctly?

   / ASV RC100 Relief Valve not working correctly? #11  
As far as stalling a hyd motor, that will occur when you are asking the cutter head to do more work that the cutter hyd motor can do , based on the pressure and the GPM's. Loss of pressure will reduce torque.

using a 25 cu in hyd motor,
---------3000 psi
torque = 995 ft lbs

using a 25 cu in hyd motor
--------2500 psi
torque = 829 ft lbs

0 to 38 GPM will change the cutting speed

As you vary the GPM's, the torque on the motor should be the same, but the velocity at the cutting tips will change based on the GPM's provided.

It takes about 78 HP to produce 38 GPM's at 3000 psi, so you can see that if the GPM's are less, you are providing the hyd motor with less hyd fluid in order to develop the motor HP.

If you stall the cutter motor, you have no flow, lots of pressure. The fluid pressure has to be relieved somewhere.
 

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