| 摘要 |
The present invention is a control valve having an adapter element, which is particularly useful as a retrofit for a mechanical flow valve. The adapter element has at least one adapter element fluid inlet and at least one adapter element fluid outlet and is sealingly engaged with and in fluid communication with a flow valve. The flow valve has a flow valve fluid inlet, a flow valve fluid outlet, and a flow valve piston orifice. The adapter element includes a piston orifice plug extension to seal the flow valve piston orifice when the adapter element is engaged with the flow valve. The control valve also includes a plunger mechanism with a plunger element in operable communication with the adapter element fluid outlet. The adapter element is a unitary structure.
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