There are many different flange standards to be found. To allow easy functionality and interchangeability,these are designed to have standardized dimensions

Dimensions

Size: 1/2 to 24 Inch / DN15 — DN600

Pressure: Class 150, 300, 600, 900, 1500, 2500

Seal Type: Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF)

Seal Thickness: Sch 10S, 20, STD, 40, XS, 80, 160, XXS

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

Carbon Steel: ASTM A105, A350 LF2,LF3. A694 F52, F60, F65, F70

Stainless Steel: ASTM A182 F304, F316, F317, F321, F310

Duplex Stainless Steel: ASTM A182 F51, F53, F55

Product: Weld Neck Flange, Socket Weld Flange, Threaded Flange, Blind Flange, Spectacle Blind, Slip On Flange, Ring Joint Flange, Plate Flange.