DARV Pressure Relief Valve - Direct Acting pressure relief valves
Eaton’s Vickers® DARV pressure relief valves are direct operated poppet valves.
They are used to limit the pressure in a hydraulic system.
The valves mainly consist of sleeve, spring, poppet with damping spool pressure 25 to 400 bar) and adjustment element. The setting of the system pressure is variable via the adjustment element. The spring pushes the poppet onto the seat. The P line is connected to the system pressure. The system pressure is applied to the poppet area.
If the pressure in P line exceeds the value set at the spring, the poppet opens against the spring. Now pressure fluid flows from P line into T line. The stroke of the poppet is limited by a pin.
In order to maintain good pressure control over the entire pressure range it is split into seven pressure ranges.
For manifold mounting cartridge valve
For In-line threaded mounting
For manifold mounting
Three pressure adjustment elements, optional: Wrench adjustable grub screw with protective cap Rotary knob/hand lever Lockable rotary knob