Valve with compressible valve stem and valve body seals

Details Valve with compressible valve stem and valve body seals Valve with compressible valve stem and valve body seals

F - Mech Eng,Light,Heat,Weapons

16

K

251/56

F16K 41/00 (2006.01) F16K 41/04 (2006.01) F16K 51/00 (2006.01)

Patent

CA 1291741

TITLE: VALVE WITH COMPRESSIBLE VALVE STEM AND VALVE BODY SEALS ABSTRACT OF THE DISCLOSURE A valve is provided with improved bonnet-stem and bonnet-valve body seals. Both non-metallic seals may be simultaneously compressed by threading the bonnet to the valve body, with a valve stem seal sandwiched between the bonnet and an axially movable retainer in engagement with the valve body. A jam nut threaded to the exterior of the bonnet may be periodically loosened, and the bonnet further threaded to the valve body to re-compress both seals and stop leakage from the valve. The concepts of the present invention are well adapted to providing a low cost valve suitable for handling corrosive fluids.

530534

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