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What equipment is needed for machining compact flanges?

Posted by Alan Hillier on Sep 27, 2016 1:31:38 PM

 

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 Above: A Mirage compact flange facing machine making a test cut on an angled surface.

Earlier this year we posted an article covering the benefits and applications of compact flanges. This time we take a closer look at the equipment and kits you need to carry out machining on the flange sealing faces of a compact flange.

But first, a reminder about what makes compact flanges different to standard raised face flanges...

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Topics: flange facing, compact flanges

Compact flanges: applications, benefits and machining kits

Posted by Alan Hillier on May 24, 2016 9:00:00 AM

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Above: The compact flange a sealing ring and angled faces which come together when the bolts are tightened

 

Applications for compact flanges

Compact Flanges are commonly used in offshore rigs and various subsea installations including;

  • Flexible and rigid risers
  • Subsea production flowlines
  • Christmas trees
  • Subsea gas-lift and water injection flowlines
  • Subsea metering equipment
  • Subsea, valves, pumps and compressors

Joints of this type are thought to be stronger than the actual pipe they are connecting and also have better fatigue properties than the flange pipe weld. This means they are specified for critical areas where conventional flanges are not accepted. There are commonly 3 sealing faces in a compact flange joint, with the ‘heel’ sealing the internal bore.

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Topics: On-site machining, flanges, portable machining, flange facing, compact flanges

   

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