Fluid handling – Removable valve head and seat unit – Retained by bonnet or closure
Patent
1991-02-25
1992-01-28
Fox, John C.
Fluid handling
Removable valve head and seat unit
Retained by bonnet or closure
251197, F16K 300
Patent
active
050835823
ABSTRACT:
A valve arrangement having an insert assembly (11) receivable in a receptacle (10). The insert assembly includes valve elements for controlling fluid flow through the valve. These include a gate (40) and chamber valve seat members (52, 53). The insert is constructed so that it can be removed from and located in the receptacle. When located in the receptacle and in operation the gate is urged against one of the seat members so that a seal is formed between the seat and gate and between the seat and receptacle body. The gate (40) can be an expandable gate.
REFERENCES:
patent: 3658087 (1972-04-01), Nelson
patent: 3749355 (1973-07-01), Paul, Jr.
Blish Nelson A.
Cooper Industries Inc.
Duke Jackie L.
Fox John C.
Thiele Alan R.
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