MECHANICAL SCIENCE Module 4 Valves
An actuator may be a manually operated handwheel, 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 mounted to the bonnet supports the actuator.
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MECHANICAL SCIENCE Module 4 Valves
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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