Hydraulic pilot operated check valves type Z2S are of sandwich plate design. They are used for the leak-free closure of one or two service ports, even for long periods of time. Free flow occurs from A1 to A2 or B1 to B2. Flow in the opposite direction is blocked. In order to ensure correct closing of the valve, the service ports of the directional valve must be connected to tank in the neutral position.
Ordering details
Technical data
Size | 6 | 10 | 16 | 22 | ||
Max. flow L/min | To 60 | To 120 | To 200 | To 360 | ||
Operating pressure (Mpa) | To 31.5 | |||||
Cracking pressure (Mpa) | 0.15 | 0.15 | 0.3 | 0.6 | 0.25 | 0.25 |
Direction | from A1 to A or B to B1 from B1 to B or A1 to A | |||||
Area ratio | A1/A2=1:3 | A1/A2=1:2.86 | A1/A2=1:11.8 | A1/A2=1:13.6 | ||
A3/A2=1:11.45 | A3/A2=1:2.8 | A3/A2=1:2.8 | ||||
Pressure Fluid | Mineral oil or Phospate ester | |||||
Temperature range ℃ | -30~+80 | |||||
Viscosity range mm²/s | 2.8~500 | |||||
Weight kg | 0.8 | 2 | 7 | 11.7 | ||
Unit dimensions: (Dimensions in mm)
Size22
