Lubricant pocket for pressed in gate valve seat

Details Lubricant pocket for pressed in gate valve seat Lubricant pocket for pressed in gate valve seat

1976-10-14

1977-10-25

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Gate

29424, 29458, 29525, F16K 330, B23P 1700

Patent

active

040553256

ABSTRACT:
A generally cylindrical seat for a gate valve is pressed in a recess in the valve body with a tight fit. A deformable seal fits within an opposed pair of grooves on the back face of the seat and the gate valve body and the seal is deformed when the seat is pressed in the recess. The seat has a relatively small annular channel spaced in outer concentric relation to the seal groove to provide a lubricant pocket to receive lubricant forced along the adjacent contacting surfaces defining the recess when the seat is pressed in and permit metal-to-metal abutting contact between the seat and valve body.

REFERENCES:
patent: 3078754 (1963-02-01), DeLacy
patent: 3186713 (1965-06-01), Hebble

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