how to operate a plug valve
When specifying a Plug Valve, it is important to consider how the operator will open and close the valve. One of the standard options is to use a 2in? nut which can be opened and closed using either a T handle or a standard wrench head with handle. These options are less expensive and can be used in most applications. In the case that the fluid passing through the valve is under high pressure or flowing quickly, the operator could potentially find it physically difficult to open or shut the valve. In this case, a designer could specify a mechanical actuated valve which provide the operator with a mechanical advantage and make it physically easier to open and close. Another option is to use an electrical powered actuator that requires no physical manipulation.
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