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differing pressure and temperature ratings for different materials

2015-11-04 15:17:10   COMMENT:0 HITS:
  These pressure classes also have differing pressure and temperature ratings for different materials. Unique pressure classes for piping can also be developed for a process plant or power generating station; these may be specific to the corporation, engineering procurement and construction (EPC) contractor, or the process plant owner. The ANSI/ASME pressure classes for Flat-Face flanges are 125# and 250#. The classes for Ring-Joint, Tongue & Groove, and Raised-Face flanges are 150#, 300#, (400# - unusual), 600#, 900#, 1500#, and 2500#.

  The flange faces are also made to standardized dimensions and are typically "flat face", "raised face", "tongue and groove", or "ring joint" styles, although other obscure styles are possible.

  Flange designs are available as "weld neck", "slip-on", "lap joint", "socket weld", "threaded", and also "blind".

  We have adopted advanced production equipment and technologies to manufacture our blind flange and Threaded flanges, which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.

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