Such weld neck are favoured in critical applications. This datasheet is for weld neck flanges that have a raised face connection. Weights are based on manufacturers data and are approximate. Bolt hole patterns are determined by industry specifications or customer request. Flate face ff, raised face rf, ring type joint rtj ss flange standards types and pressure class.
Carbon steel flanges mechanical properties and chemistry conform to astm a105. Bore will be larger if the pipe is lighter and opposite will be true if pipe is heavier and the bore will be small. The charts show the dimensions of weld neck flange class 150, 300, 400, 900, 1500, 2500 in inches and in millimeters with dimensional tolerances. Carbon steel pipe flanges dimensions and weights atlas steels. Bolt circle diameters are 18 inch larger than bolt diameter. Weld neck flange manufacturers india, long weld neck flange. Weld neck flange dimensions are covered in asme b16. Welding neck flange, slip on flange, threaded flange. Long weld neck flange dimensions class 150 to class 2500. Class 1503006001500 2500 din pn 6 welding necksliponblind flanges. The 150 lb raised face flange dimensions for facing, bolts and studs are also included in the ansi class.
Weld neck flange dimensions class 150 to class 2500. Dimensions weight kg nominal size class 600 flanges to asme b16. This standard specifies the dimensions and designation for weldneck flanges for pressurized vessels. For the height measures h and b of all described dimensions of flanges on this website, with. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. We also have engaged in research and design in flanges,rings,customized forgings, and have made excellent achievements in the high. Weldneck flanges or weldingneck flanges can be differentiated from all other types of flange by their long tapered hub. Weldneck flanges marcel piping has reputed name in metal industry as a weld neck flange manufacturers india with hogh quality material and standards. Hebei haihao flange factory,established in 1982,is one of the biggest flanges manufacturer in china. Home datasheets flange datasheets standard connection flange datasheets flange long weld neck, ansi class 150, asme b16. C this dimension is commonly associated with true lap joints. Coastal flange stocks import and domestic ansi b16. In pressure classes 150 and 300, the height of raised face is approximately 1.
The welding neck flanges is normally referred to as the high hub flange. Flanges are standardized according publications from organizations like asme, mss, api and others. Long weld neck flange dimensions are covered in asme b16. The inside diameter of a weld neck flange is machined to match the inside diameter of the pipe. Weld neck flanges, welding neck flange, slip on flange, blind flange. Our flange factory is located in mengcun county,cangzhou city,hebei province,we are specialized in the production of forged steel flanges,plate steel flanges. During dimensional inspection of flange, you should check for.
Weld neck, slipon, socket weld, threaded, lap joint, blind. Orifice flanges are not covered by this standard, but all ansi flange tolerances, where applicable, apply to all coastal orifice flange diminisions except the bore. Industry standard is to make to the slip on length through the hub. Dimensions in inches of weld neck flanges and stud bolts. This also reduces high stress concentration at the base of the hub of the weld neck pipe flange. Flanges are furnished faced, drilled and spot faced or back faced. Welding neck flange blind flange screwed end flange socket welding flange flange faces provided. Flanges are usually manufactured based on industry specifications established by ansi b16.
Box 40443 houston, tx 772400443 11906 fm 529 houston, tx 77041. Visit us now to learn dimensions chart of saasmeansi b16. The american national standards institute or the ansi class 150 is a system of standards with regards to the dimensions for 150 lb steel flange dimensions like threaded, socket weld, slipon, weld neck, lap joint, and blind flanges. Sp44 class 150 blinds and welding neck flanges have the same thickness. Weld neck lap joint threaded socket weld slipon blind nom. Ansi b16 1 125 150 flanges ansi b16 1 125 150 flanges. The ring type joint blind flange usually come in blind, slipon, threaded and weld neck. Flange dimensions are determined by the pipe size and the pressure class required for the application. Flat face flanges may be provided at full thickness, c, or with raised face removed the latter is nonstandard. Long weld neck standard connection flanges texas flange.
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