F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 17/04 (2006.01) F16K 1/46 (2006.01)
Patent
CA 2480448
A repairable pressure relief valve (2) having a valve body that forms an internal fluted surface (9) provides improved field repairability. The internal, fluted surface is adapted to mate with a removal tool (31). A valve assembly (6) is slidably mounted in the valve housing and slides under excess pressure to vent vapor from a vessel (40) , such as a tank. The valve body has a first seating surface (22) for mating with a second seating surface (24) on the valve assembly when the valve plug (14) is in the closed position. The relief valve has a seal (28) for sealing an interface between the valve plug and the housing and a removable cap (8) mounted proximate to the valve plug for mechanically supporting the seal. The cap can be removed and the seal can be replaced without extensive disassembly of the valve, thereby eliminating the requirement of re-calibration after a repair has been made.
L'invention concerne une soupape de décharge réparable (2) ayant un corps qui forme une surface interne cannelée (9) à facilité de réparation améliorée. Ladite surface s'adapte à un outil de démontage (31). Un ensemble soupape (6) est monté coulissant dans le boîtier de soupape et coulisse sous l'effet d'une pression excessive pour la décharge de vapeur depuis un récipient (40), du type réservoir. Le corps de soupape présente une première surface siège (22) qui s'adapte à une seconde surface siège (24) sur l'ensemble soupape lorsque l'opercule de soupape (14) est en position fermée. La soupape est équipée d'un joint (28) qui assure l'étanchéité d'une interface entre l'opercule et le boîtier, et d'un capuchon amovible (8) monté à proximité du capuchon pour le soutien mécanique du joint. On peut retirer le capuchon et remplacer le joint sans démontage important de la soupape, ce qui supprime le rétalonnage après une réparation.
Cole Jeffrey Lynn
Oliver Thomas Bethell
Schimnowski Kenneth Roger
Fisher Controls International Llc
Ridout & Maybee Llp
LandOfFree
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