Valve having an improved seat

Details Valve having an improved seat Valve having an improved seat

1976-01-19

1978-01-24

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Particular head and seat cooperation

251DIG1, 251210, 251324, F16K 2504, F16K 146

Patent

active

040700054

ABSTRACT:
A linearly displaceable poppet controls the flow of fluid through a valve. The poppet has an external annular channel to communicate an inlet and an outlet port of the valve. Abutting poppet sleeves define a dovetailed groove of restricted volume, the sides of which extrude a Teflon O-ring into the path of a shoulder of the wall defining the channel to close the valve. The extruded section is on the high pressure side of the poppet and is backed by the shoulder and an adjacent poppet sleeve. The seat and seal thus defined are spaced from the channel outlet to the outlet port to avoid erosion from throttling.

REFERENCES:
patent: 2971090 (1961-02-01), Piet et al.
patent: 3358964 (1967-12-01), Cohen et al.
patent: 3612479 (1971-10-01), Smith, Jr.

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