Excess flow valve

Details Excess flow valve Excess flow valve

1976-03-29

1978-06-06

Cline, William R.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137498, 137517, F16K 3112

Patent

active

040930017

ABSTRACT:
An excess flow valve for use in a conduit as a precaution to quickly shut off the flow of a fluid in said conduit in the event of a rupture in the conduit. A valve disc is connected to a linkage including a two-arm lever, one arm of which engages a spring-biased stop for adjusting the distance of the valve disc to its valve seat in quiescent flow state and the other arm of which is connected to a setting device for manually or automatically closing the valve regardless of the pressure of the fluid flowing through the valve.

REFERENCES:
patent: 90278 (1869-05-01), Linnard
patent: 469611 (1892-02-01), Tully
patent: 1766945 (1930-06-01), Riehm
patent: 3143137 (1964-08-01), Muller
patent: 3379213 (1968-04-01), Billington
patent: 3631893 (1972-01-01), Seaman
patent: 3765520 (1973-10-01), Asano et al.

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