How to Inquiry a Flange
½” - 24” – covered by ANSI B16.5
Quantity
Size (nominal pipe size)
Pressure Class (150-2500)
Facing (RF, FF, RTJ, ect.)
Type (WN, SO, Threaded, Blind, SW, LJ)
Facing (RF, FF, RTJ, ect.)
Type (WN, SO, Threaded, Blind, SW, LJ)
Bore (if SW or WN)
Material
e.g. 2 – 4” 300# WNRF STD ANSI B16.5 A182 F304L Heart No.
AWWA Flanges
Quantity
Size (nominal pipe size
Class (B,D,E,F)
Type (ring, hub, blind)
Material (if not standard steel)
e.g. 3 - 30" Class D AWWA A182 F316L Heart No.
Slip-Ons larger than 24”
Industry Standard 125LW, 125/150, Class 250
Boiler Code Class 75, 175, 350
B16.47 Ser A dimensions per Tube Turn
B16.47 Ser B dimensions with 1” hub (slightly tapered)
e.g. 30" 150# SORF ANSI B16.47 Series A /BS3293 per A105 Heart No.
26"-60" covered by ANSI B16.47- WN and Blinds only
Quantity
Size (nominal pipe size)
Pressure Class
Facing
Type
Bore (WN)
Series
Material
e.g. 36" 300# RF Blind ANSI B16.47 Series A A182 F304L Heart No.
Petrochemical, chemical, coal chemical, coking, steel, building materials, non-ferrous metals, coal power and other industries are comprehensively investigate
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