Stem sealing for high pressure valve

Details Stem sealing for high pressure valve Stem sealing for high pressure valve

F - Mech Eng,Light,Heat,Weapons

16

J

251/56

F16J 15/00 (2006.01) F16J 15/40 (2006.01) F16K 41/04 (2006.01)

Patent

CA 1253482

ABSTRACT A stem sealing apparatus having a plurality of inserts (40, 42, 44, 46) for accepting a flowable sealant (52, 54) between deformable seal rings (60, 62). The inserts are loosely stacked (100), and maintained in compression between a packing gland (50) and a shoulder 32. Expansion of the flowable sealant at high temperature cannot shear the inserts apart.

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