Diaphragm-type antidrip valve

Details Diaphragm-type antidrip valve Diaphragm-type antidrip valve

1986-01-13

1987-04-28

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

251331, 92 98R, F16K 3112

Patent

active

046605983

ABSTRACT:
An improved diaphragm-type antidrip valve including a valve body defining an annular valve chamber having a fluid inlet and an axial fluid outlet defined by a centrally located valve tube with a diaphragm element having its peripheral portion held in sealing engagement against the outer end of the valve chamber by an end cap and its front face disposed for sealing engagement with the open end of the valve tube, wherein the diaphragm is formed with a centrally located button projecting axially from its rear face and received and radially supported in a socket in a valve follower slidably mounted in the end cap and biased towards closed position by a compression spring and the end cap including an annular contoured ramp presenting a concave seat adjacent the effective outer periphery of the diaphragm for radially and axially supporting the diaphragm in its open position.

REFERENCES:
patent: 2686533 (1954-08-01), Grutzmuller
patent: 2748797 (1956-06-01), Heizer
patent: 2895497 (1959-07-01), Jones
patent: 3149542 (1964-09-01), Cruse
patent: 3529622 (1970-09-01), Weise
patent: 3762681 (1973-10-01), McKinney
patent: 3863841 (1975-02-01), Berthoud
patent: 3980273 (1976-09-01), Turner

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