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Anonymous Poster

Flat Face vs. Raised Face

09/21/2010 1:48 AM

Hi Guys.. I am an Instrumentation Engineer.. Keen to know the application advantages, disadvantages and differences between RF & FF Flanges.
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#1

Re: Flat Face vs. Raised Face

09/21/2010 10:48 AM

Here's some:

  • A flat face flange requires only cutting and drilling from flat material. A raised face flange requires machining or moulding to provide the raised face and any corrugations in it.
  • The joint in a raised face flange can be pulled in to a higher pressure than a flat face joint for the same bolting torque on account of the lower contact area.
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