double pilot operated (hydraulic lock) sandwich plate check valves for mounting between the subplate and directional control valves type Z2S
Pilot operated double check valve type Z2S22 serves to shut-off an oil flow in one direction and allow free flow in the opposite direction. They can also be opened in the direction of closure. These valves are mostly used: to relieve a working circuit under pressure to prevent a load from falling in the case of a line rapture to prevent creep movements of hydraulically stressed users.
| Size | Flow (l/min) | Pressure (MPa) | Catalogue card |
|---|---|---|---|
| 6 | up to 60 | up to 35 | WK 450 360 |
| 10 s.14 | up to 80 | up to 31,5 | WK 450 309 |
| 10 s.22 | up to 120 | up to 35 | WK 435 920 |
| 16 | up to 200 | up to 35 | WK 450 310 |
| 22 | up to 300 | up to 31,5 | WK 450 229 |
| 22 s.2X | up to 360 | up to 35 | WK 433 370 |
