Reducing Flange

Reducing Flanges

Reducing flanges are a specialty flange that are most often used on projects that require the fitting together of different sized pipes.

Reducing Flange can be fabricated using a reducing spool with concentric or eccentric reducer & desired flange at each end OR it could be a single flange with internal reduced bore to connect different sized fittings on either sides.

These Flanges can be either forged or can be directly machined from heat treated plates. Plate forming is preferable for smaller sized Reducing Flanges.

Dimensions of Reducing Flanges

1. Reducing Flanges Material:

Carbon Steel: ASTM A105, ASTM A350 LF1, LF2, LF3, A36, 16Mn, etc

Stainless Steel: ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Alloy Steel: A182 F1, F5, F9, F11, F12, 22, F22, F91, etc 

Duplex Stainless Steel: ASTM A 182 – F51, F53, F55, S31803, S32205, S32550, S31254, SMO254, S32750, S32760, S32950.

Copper Alloy Steel: ASTM / ASME SB 111 UNS NO. C 10100, C 10200, C 10300, C 10800, C 12000, C 12200, C 70600, C 71500, ASTM / ASME SB 466 UNS NO. C 70600 ( CU -NI- 90/10), C 71500 ( CU -NI- 70/30)

Nickel Alloy: ASTM / ASME SB 336, ASTM / ASME SB 564 / 160 / 163 / 472, UNS 2200 (NICKEL 200), UNS 2201 (NICKEL 201 ), UNS 4400 (MONEL 400 ), UNS 8020 ( ALLOY 20 / 20 CB 3 ), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276)

2. Standards:

ANSI/ASME:ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48

DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629

DIN 2631,DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673

BS4504, BS4504, BS1560, BS10, etc