ANSI B16.5/ASME B16.47/AWWA C207
Hebei Xinyue provide a series of American standard of flanges in carbon steel and stainless steel, include ANSI B16.5, ASME B16.47 SER.A (MSS44), ASME B16.47 SER.B (API605), ANSI B16.1, BS3293, AWWA C207 etc.
Slip On Flange
Slip On Flange has a low hub as the pipe is inserted onto the bore of the flange before welding. The pipe is welded into inside and outside of the bore of the flange in order to guarantee sufficient strength and prevent leakage. The bore of all slip on flanges is slightly larger than outer diameter of the pipe connected.
Welding Neck Flange
Welding Neck Flange is generally referred to as a "high hub" flange. It is designed to transfer pressure to the pipe and reduce high pressure at the base of the flange. Welding Neck Flange is a butt-welding flange with the best design among currently available flanges because of its unique structure.
Blind Flange is a flange without a bore. This flange is used for easy access to lines in which one side of rear part of piping system is closed or reopened after closure and to interior of pipe.
Threaded Flange is similar to slip-on flange. However, it has a screw thread of female screw on the bore of the flange. The most important advantages are that the threaded flange can be bonded without welding and used in highly explosive areas with danger or low-pressure process and welding at toom temperature.
Socket Welding Flange
Socket Welding Flange is similar to slip-on flange except that it has another counterbore in the bore of the flange. The counterbore is manufactured to be slightly larger than the outer diameter of the matching pipe to allow for easy insertion of the pipe into a flange similar to slip-on flange. Diameter of slightly small bore is identical to the inner diameter of the matching pipe.
Lap Joint Flange
Lap Joint Flange is practically identical to slip on flange except for the fact that it has a radius in the bore on the bearing surface of gasket. This radius is essential for the flange to adjust lap joint stub end. In general, lap joint flange and lap joint stub end are bonded together in an assembly system.