Product Name : Mechanical Valve; Model : MOV-02; Resetting Type : Standard Type; Actuator Type : Roller Type Fluid : Air;Position and Way No. : 2 Position 3 Way; Pipe Thread Diameter : 8.5mm Fixing Hole Diameter : 4.5mm; Working Pressure Range : 0 - 8kgf/cm2 Roller Diameter : 13.8mm / 0.5"; Arm Size(not include roller) : 50 x 11mm / 1.9" x 0.47" (L * W); Body Size(.) : 44 x 23.3 x 16mm / 1.7" x 0.9" x 0.63"(L*W*T) Material : Alloy Package : 1 x Mechanical Valve 3/2 way mechanical valve. Steady performance,easy installation. This pneumatic mechanical valve is used for controlling pilots or diaphragms of larger valves or small cylinders or any pressure system that is alternatively pressurized and exhausted. Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.