Vacuum assembly including an improved vacuum relief valve assemb

Details Vacuum assembly including an improved vacuum relief valve assemb Vacuum assembly including an improved vacuum relief valve assemb

1988-05-13

1990-07-17

Nilson, Robert G.

Fluid handling

Removable valve head and seat unit

137514, 137526, 137541, F16K 1704

Patent

active

049415034

ABSTRACT:
There is disclosed a vacuum assembly including a manifold housing having one port in fluid communication via a conduit with the suction side of a pump and wherein a user site is in fluid flow via a conduit with another port or the manifold housing and wherein a vacuum relief valve assembly is positioned within the manifold housing and includes a valve disc of a spring loaded valve disc assembly in line contact with a bevelled valve seat of a valve body of the vacuum relief valve assembly thereby defining a valve seat of line contact wherein the area downstream of the valve seat is greater than the area at the valve seat.

REFERENCES:
patent: 1327494 (1920-01-01), Sims
patent: 2308583 (1943-01-01), Berges
patent: 4305425 (1981-12-01), Mackal
patent: 4750516 (1988-06-01), Heffner

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