F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/61
F16K 15/03 (2006.01) F16K 17/04 (2006.01)
Patent
CA 1221002
PRESSURE RELIEF VALVE AND METHOD FOR MODIFICATION THEREOF Abstract of the Disclosure A pressure relief valve operable in large tran- sient pressure conditions includes a valve body. A valve seat is movably mounted on the body. A valve disc or pallet is pivotally connected to the valve body by a valve arm and aligned to engage the valve seat in a valve closed position. The valve disc is secured to the valve arm by fasteners and shock absorbers are mounted between the arm and the valve disc. A resilient shock absorber is mounted between the valve seat and the valve body to absorb shock resulting from engagement of the valve disc with the valve seat. Absorption of shock resulting from opening of the valve is accomplished by a shock absorber including a lever mounted on the valve body. At least one shock absorber is mounted on the lever aligned to be engaged by the valve disc upon opening. A second shock absorber may be included to engage the side of the conduit or housing within which the valve is mounted. An existing pressure relief valve including a rigid valve seat and a pivotally mounted valve disc may be modified to operate in large transient pressure conditions. The rigid seat is replaced by a sliding seat biased by a shock absorber and a shock absorber is pivotally mounted on the valve by an arm adjacent the valve disc.
465485
Baker Harold C.
Vapor Corporation
LandOfFree
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