Transcription of www.performancepipe.com Technical Note PP 811 …
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www.performancepipe.com Technical Note PP 811 …
Bulletin: PP 811-TN July 2006 Supersedes all previous publications Page 1 of 7 2003-2006 Chevron Phillips Chemical Company LP Note PP 811-TN PE Flange Connections Flange Connection Flanged joints are made using a DriscoPlex Flange Adapter that is fused to the pipe then joined to a mating flange adapter or a mating appurtenance flange. A back-up ring is fitted behind the flange adapter s sealing surface flange as shown in Figure 2-1 and bolted to the mating flange. DriscoPlex Flange Adapters have a serrated sealing surface. At lower pressure, typically 100 psi or less, a gasket is usually not required. At greater pressure, the serrations help hold the gasket in place. The back-up ring is required for polyethylene flange joints in order to develop uniform pressure around the entire sealing surface.
Bulletin: PP 811-TN July 2006 Supersedes all previous publications Page 1 of 7 ©2003-2006 Chevron Phillips Chemical Company LP www.performancepipe.com
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