Ball valve with rotary-translatory movement for fluid products a

Details Ball valve with rotary-translatory movement for fluid products a Ball valve with rotary-translatory movement for fluid products a

1983-05-31

1985-04-09

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

With positive reduction

251188, F16K 2500

Patent

active

045097186

ABSTRACT:
A ball valve includes a ball with rotary-translatory movement fitted in a duct section. A control device allows to execute the valve closure through the continuous rotation of a single control shaft, firstly with a movement of single rotation and then with a movement of single translation.

REFERENCES:
patent: 2879798 (1959-03-01), Anderson
patent: 3245653 (1966-04-01), Lauigueur
patent: 3403886 (1968-10-01), Barker
patent: 3675894 (1972-07-01), Friedell
patent: 3894714 (1975-07-01), Whittaker
patent: 4029292 (1977-06-01), Kramer

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