SMC Hand Valves
Hand valves are devices used to manually adjust the flow direction, pressure, flow rate or another property of a fluid (liquid, vapor or gas). Hand valve bodies are made of materials such as aluminum, steel, stainless steel, PVC and resin. Hand valves are usually connected for use with pipes containing flowing fluids using fittings made of the same material as the hand valve body. Hand valve controls are often made of a different material from the body. The controls come in forms such as knobs, handles and levers. The standard types are 2-way valves with 2 fluid input/output ports and 3-way valves with 3. They are attached in accordance with the direction of fluid flow. There are many different hand valve models designed to connect to different pipe diameters and support different operating pressure ranges. There are also different fitting types such as screw-in, flange and welded fittings, so each hand valve model should be selected to match the operating environment.