Nozzle flapper valve

Details Nozzle flapper valve Nozzle flapper valve

1981-01-16

1983-06-21

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

With counter-balancing pressure feedback to the modulating...

137 82, G05D 1600

Patent

active

043889425

ABSTRACT:
A nozzle flapper valve provided with a nozzle, fixed throttle and flapper, characterized in that the flapper is formed to be cylindrical and has the cylindrical peripheral surface positioned on the axis of the nozzle so as to simplify the flapper moving mechanism and to prevent the flapper clearance from being clogged with dust in the fluid.

REFERENCES:
patent: 2813519 (1957-11-01), Persson
patent: 3315250 (1967-04-01), Higgins
patent: 3455318 (1969-07-01), Jenney
patent: 3919923 (1975-11-01), Haigh

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