Specifications

Sizes: 1/8" NB to 48" NB.

Grades: 150#, 300#, 400#, 600#, 900#, 1500#, and 2500#.

Stainless steel: ASTM A 182, A 240

Grades: F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, Duplex UNS S31803, 2205, Super Duplex UNS S32750

Carbon steel: ASTM A 105, ASTM A 181

Alloy steel: ASTM A 182, GR F1, F11, F22, F5, F9, F91

Nickel alloys: Monel 400 and 500, Inconel 600 and 625, Incoloy 800, 825, Hastelloy C22, C276

Copper alloys: Copper, Brass and Bronze

Flange face types Loose flange (loose flange):

American series: flat (FF), convex (RF), tenon (T), groove (G), female (F), male (M), ring joint (RJ/RTJ)

European series: Type A (flat), Type B (convex), Type C (tongue), Type D (groove), Type E (socket), Type F (groove), Type G (O-ring socket), Type H (O-ring groove)

Standard:

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

DIN: DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631、DIN2632、DIN2633、DIN2634、DIN2635、 DIN2636、DIN2637、DIN2638、DIN2673

Applications of loose flanges (loose flanges)

Natural gas, chemical industry, petroleum, shipbuilding, ocean, papermaking, metallurgy, electricity, power, boilers, etc.

Maintenance

The maintenance of fixed flanges is more difficult than that of loose flanges, as any repair work requires complete disassembly. On the other hand, loose flanges are easy to disassemble, so repairs are relatively easy and less time-consuming. Regular maintenance is necessary to ensure the normal operation of both flanges and avoid system failures.

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