Posted by IH fan on December 18, 2011 at 18:58:38 from (99.72.176.240):
In Reply to: More hyd Questions for posted by Tom Fleming on December 18, 2011 at 12:44:41:
I should have explained that these come in several pressure ranges... the ones we used were the lowest range available, but some were made to go to probably go to 2500 or 3000 psi. The range should be stamped on it somewhere. These are direct acting (as opposed to pilot controlled) and can be "noisy" when relieving at the set pressure, and are also somewhat variable with the flow. A pilot operated Rv will remain the same no matter how much flow is going through it when relieving, up to the rated flow.
I would back the adjustment off and plumb the pressure port directly off the pump pressure port with no other components in the system other than a guage between the pump and Rv, and the tank port back to your reservoir. This way, you know exactly where it's set and that flow isn't going somewhere else in a system. I don't know how much pressure your cam gear or the M&W pump will take, someone with that experience will need to give you that advise. The way we used that type of valve was not really the intended purpose, but they did the job... we never blew up a reservoir with one of these on it. We started using them after an air regulator stuck and blew the top off of one of our reservoirs... it happened over night when no one was in the department, but people in other parts of the plant heard it.
This post was edited by IH fan at 19:00:14 12/18/11.
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