This valve provides a means of sensing the higher pressures between two lines on a hydraulic circuit allowing this line to be used for an auxiliary function, such as the removal of a mechanically applied brake, the operation of a gauge or to give a remote pressure sensing line for the control of another independent valve.

When a higher pressure is sensed at inlet port 1 than at inlet port 3 the ball within the cartridge is forced against a seat opening the higher pressure to outlet port 2.

When the higher pressure appears at inlet port 3 the ball is forced against another seat which blocks inlet port 1 and opens up inlet port 3 to outlet port 2.

Rated Flow :

35 l/min

Max. pressure :

350 bar

Working temperature :

Min. -20℃ , Max. 90℃ , with standard BUNAN gaskets

Min. -20℃ , Max. 120℃ , with optional VITON gaskets on request

Fluid :

best use mineral oil with viscosity ranging between 10 and 200 cSt

Filter :

25 micron or better

Cavities :

see cavity data 08-03

Installation :

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.

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