Posted by IH fan on March 03, 2013 at 14:58:51 from (108.220.169.138):
In Reply to: Gresen 3 Spool Valve posted by IAtractorKid on March 03, 2013 at 11:39:33:
I'd say the set-up on the left side of the valve is the system relief valve andit looks like it's adjustable, probably only within a narrow range, most likey can be varied 500-1000 psi, for example between 1000 or 1500 and 2000psi. Only way to tell for sure is to deadhead a valve, operate that valve fully one way and read a pressure guage on the inlet. If it had a pre-set relief, it would look more like a hex plug with the model # and pressure stamped in it.
3/4" or -12 should be okay for a 17 gpm pressure line, but your low pressure return line should be 1" or -16 so it doesn't have too much back pressure. Pete is right on the valve... it should have a detent set-up on a valve spool if it has a float position.
This post was edited by IH fan at 15:01:27 03/03/13 2 times.
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