F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/64
F16K 43/00 (2006.01) F16K 1/42 (2006.01) F16K 27/02 (2006.01)
Patent
CA 1257857
A B S T R A C T A globe valve having a dismountable seat for rapid maintenance A globe valve comprising: a control rod (70) which is movable in translation along a valve axis (XX'), handle means (90) for controlling movements of said rod in translation, a disk (74) fixed to one end of said rod; a body (12) having an inlet passage (14) and an outlet passage (16) therethrough for passing a liquid, said passages giving access to a cavity (18) which is extended via a cylindrical orifice (22) disposed along said valve axis in order to receive said rod; a cage (36) lodged inside said cavity and within which said disk is capable of being moved by axial displacement of said rod; packing (46) surrounding a portion of said rod and disposed within said cylindrical orifice; a seat (28) which is removable from said body for co- operating with said disk in a closure position, said seat having a first face defining a sealing bearing surface for co- operating with said disk and a first annular thrust bearing orifice, and a second face defining a second annular thrust bearing surface; means for defining a third annular thrust bearing surface symmetrically about said axis and disposed in said cavity between the openings to said passages and at least substantially fixed relative to said body; means (26) for providing sealing between said second and third annular thrust bearing surfaces; and compression means (50), said compression means acting on a stack having the same axis as the said valve body and comprising: said packing, said cage, said seat, and said sealing means, whereby said packing and said sealing means are subjected to said compression in order to provide sealing respectively between said rod and the wall of said cylindrical orifice through the body, and between said seat and said body.
491527
Sereg
Smart & Biggar
LandOfFree
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