Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1989-12-06
1992-09-15
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
251214, 251324, 277105, 277187, 277DIG6, F16J 926, F16K 4100, F16K 4300
Patent
active
051469456
ABSTRACT:
A removably securable guide ring (33) for a valve plug (30) in a control valve. The removably securable guide ring (33) also serves as a retainer for a pressure seal ring. The guide ring (33) includes the surface (40) which, upon the guide ring (33) being secured with a valve plug (30), forms a seal ring groove with a stepped portion (34) of the valve plug (30). A seal ring may be installed by removing the guide ring (33) from the valve plug (30), placing the seal ring within the stepped portion (34) of the valve plug (30), and by securing the guide ring (33) with the valve plug (30). As a result, the seal ring is disposed within a seal ring groove formed by a stepped indentation (34) of the valve plug (30) and a surface (40) of the guide ring (33). The guide ring (33) also includes a surface (38) which faces and may abut the inside surface of a valve bonnet (12) during operation. This valve bonnet facing surface (38) of the guide ring (33) operates to guide the valve plug (30) within the valve bonnet (12) during operation of the valve.
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Heymann Frank J.
La Rosa Joachim A.
Ross Joseph W.
Bach K.
Walton George L.
Westinghouse Electric Corp.
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