for use on clamp and drill circuits where pressure is to be maintained regardless of back pressure drop in the system.
the valve adjustable spring-loaded as direct-acting relief valve at valve setting by pressure on port 1 allowing relief flow toport 2.
when oil flows from port 2 to port 1 ,the release pressure is low.
when port 3 directly flows to tank.
back pressure on port 2 without adds to the valve setting.
rated flow :
max. pressure :
working temperature :
min. -20鈩?, max. 90鈩?, with standard bunan gaskets
min. -20鈩?, max. 120鈩?, with optional viton gaskets on request
best use mineral oil with viscosity ranging between 10 and 200 cst
25 micron or better
see cavity data st11a
before screwing the cartridge on the valve body, ascertain to provide suitable gasket lubrication with clean oil and also be sure to screw the cartridge manually in to reach against the gaskets in the valve body.