How To Use Stainless Steel Flange And Its Types?

　　Stainless Steel Flange is a mechanical device used to connect pipes, valves, pumps, and other equipment to form a pipeline system. Flanges provide a means of attaching and sealing two pieces of equipment together, allowing for easy maintenance and disassembly.

　　Types Of Stainless Steel Flanges

　　Weld Neck Flanges: These flanges are designed to be welded to a pipe, and they are commonly used in high-pressure and high-temperature applications.

　　Slip-On Flanges: These flanges slide onto the pipe and are then welded into place. They are less expensive than weld neck flanges and are commonly used in low-pressure applications.

　　Socket Weld Flanges: These flanges are similar to slip-on flanges, but they have a socket that fits around the pipe. They are commonly used in small-diameter pipes and high-pressure applications.

　　Threaded Flanges: These flanges have internal threads that allow them to be screwed onto a pipe. They are commonly used in low-pressure and non-critical applications.

　　Lap Joint Flanges: These flanges are used with a stub end, which is welded to the pipe. The flange then slides over the stub end and is bolted into place. They are commonly used in applications where frequent disassembly is required.

　　Flange standard
        ASME standard

　　ASME B16.1 - Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and 250

　　ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard

　　ASME B16.20 - Ring Joint Gaskets and Grooves for Steel Pipe Flanges

　　ASME B16.21 - Nonmetallic Flat Gaskets for Pipe Flanges

　　ASME B16.24 - Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes 150, 300, 600, 900, 1500, and 2500

　　ASME B16.34 - Large Diameter Steel Flanges (NPS 26 through NPS 60)

　　ASME B16.36 - Orifice Flanges

　　ASME B16.42 - Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and 300

　　ASME B16.47 - Large Diameter Steel Flanges (NPS 26 Through NPS 60)

　　ASTM standard

　　ASTM A105 - Specification for Carbon Steel Forgings for Piping Applications

　　ASTM A182 - Specification for Forged or Rolled Alloy Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High Temperature Service

　　ASTM A193 - Specification for Alloy Steel and Stainless Steel Bolting Materials for High Temperature Service

　　ASTM A194 - Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure and High Temperature Service

　　ASTM A694 - Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service

　　ASTM A707 - Specification for Flanges, Forged, Carbon and Allow Steel for Low Temperature Service

　　AWWA standard

　　AWWA C115 - Standard for Flanged Ductile Iron Pipe with Ductile-Iron or Gray-Iron Threaded Flanges

　　General pipe flange standards

　　Flange - ASME B16.36, Orifice Flange (1/2"-24")

　　Slip-on Flange: Class 300, Class 400, Class 600, Class 900, Class 1500

　　Threaded Flange: Class 300, Class 400, Class 600, Class 900, Class 1500

　　Weld Neck Flange: Class 300, Class 400, Class 600, Class 900, Class 1500, Class 2500

　　Flange - Industry Standard Flange (also called Large Diameter Flange) (26"-larger)

　　Blind Flange: Class 75, Class 125, Class 175, Class 250, Class 350

　　Weld Neck Flange: Class 75, Class 125LW, Class 125, Class 175, Class 250, Class 350

　　Slip-on Flange: Class 75, Class 125LW, Class 125, Class 175, Class 250, Class 350

　　Industry Standard Flanges have no national standard code or are they covered by any governing body.

　　Flange - AWWA Standard Flange

　　Steel Ring Flange: Class B, Class D, Class E, Class F

　　Steel Hub Flange: Class D, Class E

　　Blind Flange: Class B, Class D, Class E, Class F

　　Steel Ring Flange: Class B, Class D, Class E, Class F

　　Steel Hub Flange: Class D, Class E

　　Blind Flange: Class B, Class D, Class E, Class F

　　AWWA C207

　　AWWA C207

　　Overall, the choice of Stainless Steel flange type depends on the specific application requirements, including the pressure, temperature, and size of the pipeline system.