Removable captive plunger with contamination protection

Details Removable captive plunger with contamination protection Removable captive plunger with contamination protection

1998-04-02

1999-11-09

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

251 3002, 251 46, F16K 3140

Patent

active

059794828

ABSTRACT:
A diaphragm-type control valve for irrigation systems has a solenoid operated pilot valve assembly. The solenoid includes a housing having a generally cylindrical bore with an open end, an energizeable coil surrounding the bore, a ferrous plunger reciprocally mounted in the bore and having an end extending from the open end of the solenoid housing, the plunger moveable between an extended position and a retracted position, and an elastomeric sealing cap mounted on the plunger end and having a central portion for sealingly engaging a valve seat and a peripheral portion sealing the bore around the plunger.

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