Direct acting hydraulic pressure relief valve is a guided poppet design. This DPRH has cushion arrangement for greater stability and noise control, it comes in 3 sizes- 06, 10 and 20. There are 2 types of mounting style, it can be threaded port body or subplate type. it can sustain upto 700kg of pressure. The pressure can be adjusted with the hand knob or with set screw and lock nut.