Seal in high pressure pneumatic booster valve

Details Seal in high pressure pneumatic booster valve Seal in high pressure pneumatic booster valve

1993-11-15

1994-09-13

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

406 93, F16K 1514

Patent

active

053459695

ABSTRACT:
A booster valve for a pneumatic conveying system is made with an annular seal made out of relatively thin rubber having a low tensile strength to thereby reduce the resistance or opposition to the flow of the booster air into the conveying line and the seal retainer is provided with supporting ribs for restraining movement of the seal to prevent the seal from exceeding its elastic limit which otherwise could occur due to a whipping action which occurs during high volumes of air flow through the booster valve. In addition, the booster valve has a large air-receiving chamber so that the input pressurized air is allowed to expand to thereby reduce the velocity of the air as it passes through the valve.

REFERENCES:
patent: 2621889 (1952-12-01), Annin
patent: 2941541 (1960-06-01), Peras
patent: 4313699 (1982-02-01), Steele
patent: 4582081 (1986-04-01), Fillman
patent: 4708535 (1987-11-01), Steele

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