Piston-type check valve with diffuser

Details Piston-type check valve with diffuser Piston-type check valve with diffuser

1995-10-17

1999-07-13

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Direct response valves

137220, 13753331, 137543, F16K 1506

Patent

active

059212764

ABSTRACT:
An axial recess is formed in the downstream end of the diffuser body. An annular tail member is mounted on the downstream end of the valve piston. The tail member retracts into the recess when the piston is in the closed position and provides an extension of the diffuser body when the piston is in the open position.

REFERENCES:
patent: 666245 (1901-01-01), Ginaca
patent: 1800545 (1931-04-01), Lamer
patent: 2870779 (1959-01-01), Thomiszer
patent: 3141471 (1964-07-01), Williamson
patent: 3993093 (1976-11-01), Mokveld
patent: 4638832 (1987-01-01), Mokveld
patent: 4693270 (1987-09-01), Yaindl
patent: 4747426 (1988-05-01), Weevers
patent: 4766929 (1988-08-01), Yaindl
Brochure--Mannesmann Demag Huttentechnik Meer--Type DRV-Z Nozzle Check Valve.
Brochure--Mannesmann Demag Huttentechnik Meer--Type KRV Wafer Check Valve.
Brochure--NozCheck Valve Body Styles.

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