Valve construction

Details Valve construction Valve construction

Filed on

1975-06-09

Date issued

1976-08-03

Examiner

Weakley, Harold W.

Patent Class

Valves and valve actuation

SubClass

With means to increase head and seat contact pressure

SubSubClass

Seat pressed to valve

Other Related Categories

251174, F16K 2500

Type

Patent

Status

active

Patent number

039725073

Description

ABSTRACT:
A fluid flow control valve having a seat ring which provides a seal between the body and the movable valve member and which is provided with a sediment guard made of resilient material which prevents accumulation of sediment in the body recess within which the seat ring is accommodated. Preferably the guard is a tube made of resilient material (e.g., synthetic rubber). Also improved seat ring spreader means that can be readily installed as the valve is assembled.

REFERENCES:
patent: 2155259 (1939-04-01), Dickson
patent: 3121553 (1964-02-01), Grove

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