Torque Proportional Electro-Hydraulic Pilot Relief Valve

A Torque proportional electro-hydraulic pilot relief valve is one that gradually opens as pressure builds. It's made up of a tiny direct-acting relief valve and a tiny DC solenoid. It is used as a pilot valve in hydraulic systems with humble flow rates. For liquid or gas service, proportional relief valves are offered. They release when the system exceeds certain pressures then close when the system lowers below that same specified pressure.

Consider these things when buying a Torque Proportional electro-hydraulic pilot relief valve: 

• If pressure instability occurs, make a 1-1.5mm establishing for the relief or other valve vent outlet.
• When this valve is used to control circuit pressure, make sure the trapped oil volume exceeds 40 cm3.
• A factory-matched valve and amplifier offer the perks of valves with onboard electronics.
• Flow rate: The maximum flow is 2L/min and the minimum flow is 0.3L/min.

Here are some Torque  proportional electro-hydraulic pilot relief valves:

Yuken EDG-01-V-C-1-PNTN-50
Continental Hydraulics - VER03MP
Diplomatic PRE*