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:：350 bar（5000 psi）

Proof pressure：525 bar (7500 psi)  

Flow: see performance chart.

Internal leakage：　

                  ③ to ②: max. 0.25mL/min (5 drops/min) iat 350bar (5000psi)

                  ② to①: max. 115mL/min (7cu.in./min) at 350bar(5000 psi) (without sealed piston)

                  ② to ①: no leakage (without sealed piston)

Pilot ratio：3.2:1 pilot ratio:

Check spring bias: Standard: 1 bar (14.5 psi); with sealed piston: min. 5 bar （73 psi)

Cracking pressure：1 bar   (14.5 psi）

                   5 bar（73  psi）  

Ordering Code