![]() ![]() Needle Valve - A valve with an adjustable tapered point which regulates the rate of flow.Looking for valve AutoCAD drawings? We have them in our store. National Association of Corrosion Engineers (NACE).Manufacturers Standardization Society (MSS).International Organization for Standardization (ISO).American Society for Testing and Materials (ASTM).American Society of Mechanical Engineers (ASME).Self-activated Valves: Check Valve, Pressure Relief Valve.Quarter Turn Valve or Rotary Valve: Plug Valve, Ball Valve, Butterfly Valve.Multi-turn Valves or Linear Motion Valves: Gate Valve, Globe Valve, Pinch Valve, Diaphragm Valve, Needle Valve.There are four basic types: diaphragm check, lift check, swing check, and tilting-disk check. Check Valves - Check valves are used to allow the flow of fluids in only one direction.Stop valves are divided into four basic types of valves: gate, globe, ball and butterfly. Stop Valves - Stop valves are used to shut off or partially shut off the flow of liquids.All valves fall into two basic types: stop valves and check valves. In general, there are valves used for on-off (open-closed) applications, and throttling valves which can adjust flow. The type of valve used depends on the application. Valve, abbreviated as V, is a mechanism used to stop or open and regulate flow. ![]()
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