AWWA C207

Class Steel-ring flanges Steel-hub flanges Class B (86psi) NPS 4-144 (DN100-3600) –  Class D (175-150psi) NPS 4-144 (DN100-3600) NPS 4-96 (DN100-2400) Class E (275psi) NPS 4-144 (DN100-3600) NPS 4-96 (DN100-2400) Class F (300psi) NPS 4-48 (DN100-1200) –

EN 1092.1

PN Plate (type01) Slip on (type12) Weld neck (type11) Threaded (type13) Blind (type05) PN 2.5 DN 10-4000 DN 10-4000 DN 10-4000 DN 10-4000 DN 10-4000 PN 6 DN 10-3600 DN 10-3600 DN 10-3600 DN 10-3600 DN 10-3600 PN 10 DN 10-3000 DN 10-3000 DN 10-3000 DN 10-3000 DN 10-3000 PN 16 DN 10-2000 DN 10-2000…

ASME B 16.47

Series A (MSS SP-44) Class Welding neck Blind 150 NPS 26- 60 NPS 26- 60 300 NPS 26- 60 NPS 26- 60 400 NPS 26- 60 NPS 26- 60 600 NPS 26- 60 NPS 26- 60 900 NPS 26- 48 NPS 26- 48 Series B (API 605) Class Welding neck Blind 75 NPS 26- 60…

ASME B16.5

Class Welding neck Slip  on Socket welding Threaded Lapped joint Blind CL150 NPS 1/2- 24 NPS 1/2- 24 NPS 1/2- 3 NPS 1/2- 24 NPS 1/2- 24 NPS 1/2- 24 CL300 NPS 1/2- 24 NPS 1/2- 24 NPS 1/2- 3 NPS 1/2- 24 NPS 1/2- 24 NPS 1/2- 24 CL400 NPS 1/2- 24 NPS 1/2-…

Steel Flanges

Reference standards ASME B16.5   Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 ASME B16.47  Large Diameter Steel Flanges: NPS 26 Through NPS 60 ASME B16.48  Line blanks ASME B16.36  Orifice Flanges