Description
It provides static and dynamic control of load by regulating the flow IN and OUT of the actuator, through ports C1 and C2. This valve module includes 2 sections, each one composed by a check and a relief valve with balanced piston, pilot assisted by pressure in the opposite line: the check section allows free flow into the actuator, then holds the load against reverse movement; with pilot pressure applied at the line across, the pressure setting of the relief is reduced in proportion to the stated ratio until opening and allowing controlled reverse flow. Relief operates at the valve setting independent of back-pressure, but the piloted opening remains subject to additive pressure at V1 or V2. The relief spring chambers are vented to air: relief and piloted opening are independent of back-pressure at V1 or V2. For better safety and compact assembly, the C1 and C2 ports are gasket mounted directly on the actuator.
¹) Seals for 10 valves.
