JPS6131596Y2 - - Google Patents

Info

Publication number

JPS6131596Y2

JPS6131596Y2 JP10758881U JP10758881U JPS6131596Y2 JP S6131596 Y2 JPS6131596 Y2 JP S6131596Y2 JP 10758881 U JP10758881 U JP 10758881U JP 10758881 U JP10758881 U JP 10758881U JP S6131596 Y2 JPS6131596 Y2 JP S6131596Y2

Authority

JP

Japan

Prior art keywords

valve

valve body

backseat

valve stem

back seat

Prior art date

1981-07-20

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

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• 238000007789 sealing Methods 0.000 claims description 11
• 239000002184 metal Substances 0.000 claims description 4
• 239000000463 material Substances 0.000 description 10
• 239000012530 fluid Substances 0.000 description 9
• 238000012856 packing Methods 0.000 description 5
• 229910000963 austenitic stainless steel Inorganic materials 0.000 description 4
• 210000004907 gland Anatomy 0.000 description 4
• 230000000694 effects Effects 0.000 description 3
• 229910001347 Stellite Inorganic materials 0.000 description 2
• AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 2
• 238000003754 machining Methods 0.000 description 2
• 238000000034 method Methods 0.000 description 2
• 230000000737 periodic effect Effects 0.000 description 2
• 229910001220 stainless steel Inorganic materials 0.000 description 2
• 239000010935 stainless steel Substances 0.000 description 2
• YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
• 229910000792 Monel Inorganic materials 0.000 description 1
• 230000002411 adverse Effects 0.000 description 1
• 229910045601 alloy Inorganic materials 0.000 description 1
• 239000000956 alloy Substances 0.000 description 1
• 239000010425 asbestos Substances 0.000 description 1
• 238000006243 chemical reaction Methods 0.000 description 1
• 239000003795 chemical substances by application Substances 0.000 description 1
• 150000001875 compounds Chemical class 0.000 description 1
• 238000005260 corrosion Methods 0.000 description 1
• 229910052731 fluorine Inorganic materials 0.000 description 1
• 239000011737 fluorine Substances 0.000 description 1
• 229910001026 inconel Inorganic materials 0.000 description 1
• 238000003780 insertion Methods 0.000 description 1
• 230000037431 insertion Effects 0.000 description 1
• 238000007689 inspection Methods 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 230000002093 peripheral effect Effects 0.000 description 1
• 238000001556 precipitation Methods 0.000 description 1
• 238000010791 quenching Methods 0.000 description 1
• 230000000171 quenching effect Effects 0.000 description 1
• 230000005855 radiation Effects 0.000 description 1
• 239000011347 resin Substances 0.000 description 1
• 229920005989 resin Polymers 0.000 description 1
• 229910052895 riebeckite Inorganic materials 0.000 description 1