Single Overcentre Valve

Installation information

The inlet flow is connected to ‘V2’ port, ‘C2’ with actuator port and 1/4” BSP Port to pilot pressure supply.

Features

• Steel Body
• Yellow Zinc Plated
• No Leakage
• Internal Components Hardened
• Spring Setting Range 60 to 350 Bar
• Suitable for open or closed centre directional control valves

Operation

The flow passes free from ‘V2’ to ‘C2’. When descend control pressure is applied on pilot port it opens gradually and flow passes from ‘C2’ to ‘V2’ and does not allow the increased flow to increase the actuator speed.

Note : The valve should be set 30% above max load induced pressure. Max working pressure 270 Bar. Pilot ratio 1:4.25

Dual Overcentre Valve

Installation information

The inlet flow from directional control valve connects to ‘V1’ and ‘V2’. Ports ‘C1’ and ‘C2’ connect to the actuator.

Features

• Steel Body
• Yellow Zinc Plated
• Low leakage
• Internal Components Hardened
• Spring Setting Range 60 - 350 BAR

Chromium plated body – black zinc plated body – Nickel plated spindle.

Operation

When pressure flow passes from ‘V1’ to ‘C1’ it controls the actuator port. At the same time an internal pilot signal is made from ‘V1’ to ‘C1’ line which controls the opening of ‘V2’ to ‘C2’ line which controls flow to its connecting actuator port. When pressure flow is directed at ‘V2’ port it performs the opposite function.

Note : The valve should be set 30% above max load induced pressure. Max working pressure 270 Bar. Pilot ratio 1:4.25