Rupture band relief valve

Details Rupture band relief valve Rupture band relief valve

1981-12-14

1983-09-06

Weakley, Harold W.

Fluid handling

Destructible or deformable element controlled

Destructible element

137 71, 220 89A, F16K 1304

Patent

active

044023340

ABSTRACT:
In a pressure relief valve a valve body, having a lateral exhaust port, is provided with a valve moveable toward and away from a fluid inlet sealing face at its pressure connected end and guided by a valve stem projecting through the other end of the body. A radially projecting arm, connected with the valve body opposite its inlet end, supports a cylinder having a groove therein nesting a lever pivotally connected with the outwardly projecting end of the arm and overlying the outwardly projecting end of the valve stem for receiving at least one endless rupture band therearound and normally maintaining the valve closed. Excessive fluid pressure against the valve pivots the lever out of its groove and expands the endless band beyond its tensile strength limit which unseats and opens the valve.

REFERENCES:
patent: 2115371 (1938-04-01), Mossberg
patent: 3603333 (1971-09-01), Anderson

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