Applicable standards and specifications
Design and manufacturing: API 602/BS5352/ANSI B16.34
Face to face: manufacturer standard
Face to face, flanged: ASME B16.10
End flanges: ASME B16.5
Butt welding ends: ASME B16.25
Socket welding ends: ASME B16.11
Screwed ends: ASME B1.20.1
Inspection and test: API 598
Materials: A105 (N), A182 F304, F316, F304L, F316L, F11, F22, F5
Design descriptions
BC, bolted cover
Choice of WB, welding bonnet
Lift or swing type
Seat rings integral with body of lift
Horizontal or vertical service
SW, socket welding ends
SC, screwed ends
BW, butt welding ends
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