Wire cutting insert for gate valve

Details Wire cutting insert for gate valve Wire cutting insert for gate valve

1994-02-09

1996-03-26

Fox, John C.

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

251326, E21B 3306

Patent

active

055014240

ABSTRACT:
A gate valve assembly for controlling fluid flow is provided with wireline-cutting inserts loose-fitted in either of, or both of, the gate opening and at least one of the seats. Each insert has a length that prohibits it from extending beyond the opening in which it is received so that the contact surface between the gate and an adjacent seat forms a continuous seal and the inserts serve only a wireline-cutting function, thus eliminating the possibility of sealing surfaces being damaged by wireline-cutting.

REFERENCES:
patent: 4997162 (1991-03-01), Bober et al.

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