An Industrial Pipe Flange can be a collar, ring or solid disk that attaches to various pipe applications that allow or restrict the flow of liquids and gases. Pipe Flange installment is usually completed by welding the Flange onto the pipe but the Industry also offers Threaded and Lap Joint Flanges that don’t require welding for installment.
Flange connections are achieved by drilling equally spaced bolt holes into the Flange that align with the matching Flange and then fastened with bolts. Bolt hole patterns are determined by Industry Specifications or customer request. Flanges are usually manufactured based on Industry Specifications established by ANSI B16.5, ASME B16.47, MSS-SP44, API, and AWWA-C207.
| Stainless Steel Pipe Flange |
| ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L |
| Carbon Steel Pipe Flange |
| ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52 |
| Low Temperature Pipe Flange |
| ASTM A350 LF2, LF3, LF6 |
| Alloy Steel Pipe Flange |
| ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91 |
| Duplex & Super Duplex Steel Pipe Flange |
| ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61 |
| Nickel Alloy Pipe Flange |
| UNS 10276 (HASTELLOY C 276), UNS 6625 (INCONEL 625), UNS 6601 (INCONEL 601), UNS 6600 (INCONEL 600), UNS 8825 (INCONEL 825), UNS 8020 (ALLOY 20 / 20 CB 3), UNS 4400 (MONEL 400), UNS 2201 (NICKEL 201), ASTM / ASME SB 336 UNS 2200 (NICKEL 200) |
| High Yield Pipe Flanges |
| ASTM A694 F42, F52, F60, F65, F70 |
Accurate measurement also relies on understanding pressure ratings. For a regular pipe flanges, first measure the flanges outside diameters (O.D). This will be accomplished by measuring from the surface edge of the flange to the other outer edge. Next, measure the within diameter of your flange. Steel Pipe Flanges within equivalent standards can either be flat or raised face.
Pipe Size – Pipe Flanges even have a corresponding pipe size, generally consistent with accepted standards.
Outside Diameter of Flange (OD) – this is often measured from outer edge to opposing outer edge.
Pitch Circle Diameter (PCD) – this is a diameter that measures from the middle of bolt hole to opposing bolt hole.
Flange Thickness – this measures only the thickness of the attaching outer rim, and doesn’t include the a part of the flange that holds the pipe.
ASTM A 240 F 304 stainless steel necked flat welding flange is also called flange or flange. Flange is a part that connects shafts to each other, and is used for the connection between pipe ends; it is also used as a flange on the inlet, outlet, and outlet of equipment, for the connection between two devices, such as the flange of a statistical machine.
