Description

A screw-in, cartridge type, pilot-operated hydraulic check valve, which can be applied for unidirectional blocking or load holding circuits.

Technical Data

Operating pressure:：250 bar（3600 psi）

Proof pressure：350 bar (5075 psi)  

Flow: see performance chart.

Internal leakage：　

             ③ to ②: max. 0.1mL/min (2 drops/min) iat 250bar (3600psi)

             ② to①: max. 115mL/min (7cu.in./min) at 250bar(3600 psi) (without sealed piston)

             ② to ①: no leakage (without sealed piston)

Pilot ratio：3:1 pilot ratio:

Check spring bias: Standard: 1.7 bar (25 psi); with sealed piston: min. 6.2 bar（90 psi)

Ordering Code