Standards:
Design & Manufacture: API 602
Socket Weld Ends: ANSI B16.11
Screwed Ends: ANSI B1.20.1
Face to Face Dimensions: ANSI B16.10
Test: API 598

Specification:
Bolted Bonnet or Welded Bonnet
Lift Check or Inclined Bonnet
Hard Faced Sealing Surface
Socket Weld or Screwed Ends

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