Multi-position relief valve

Details Multi-position relief valve Multi-position relief valve

F - Mech Eng,Light,Heat,Weapons

16

K

137/43.1

F16K 17/06 (2006.01) G05D 16/04 (2006.01)

Patent

CA 1213811

ABSTRACT A multi-position pressure relief valve settable to operate at different pressure limits includes an adjustment rod, a valve bias spring and a valve member extending coaxially with one another, the axial spacing between the rod and the valve member determining the pressure limit for the valve. The rod carries a pin adapted to engage a stepped surface of a limit select member, the steps defining a plurality of stop positions for the rod, and each stop position corresponding to a different pressure limit setting. A control knob attached to the rod enables the rod to be manipulated to locate the pin in the stop position corresponding to the pressure limit desired.

455212

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