MECHANICAL SCIENCE Module 4 Valves
There are many valve designs and types that satisfy one or more of the functions identified above. A multitude of valve types and designs safely accommodate a wide variety of industrial applications. Regardless of type, all valves have the following basic parts: the body, bonnet, trim (internal elements), actuator, and packing.
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www.constructionknowledge.nethandwheel, manual lever, motor operator, solenoid operator, pneumatic operator, or hydraulic ram. In some designs, the actuator is supported by the bonnet. In other designs, a yoke ... Valve stem leakage is usually controlled by properly compressing the packing around the valve stem.
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