Mecline VRF2 Controlsets Unloader Valve Bolt-On-Type. New body with inner housing of O-ring in the outlet for a higher resistance. G1/8F pressure gauge option on request. Hexagonal check valve for a better smoothness. Adjustment ring nut. Ergonomic plastic adjustment knob. Easy maintenance, the pressure regulating unit is fully removable from above. 220 to 280 Bar rated pressure. 30 Lpm max flow. 90°C max temperature. Trapped pressure valve and bypass. Brass and stainless steel construction. Fit direct to pump manifolds.