Industrial Flanges

This standard covers pressure-temperature ratings, dimensions, materials, marking, tolerances, and testing for pipe flanges in sizes NPS 26 through NPS 60. ASME B16. 47 includes flanges with rating class designations 75, 150, 300, 400, 600, and 900 with requirements given in both U. S. Customary units and SI (Metric), with a diameter of bolts and flange bolt hole expressed in inch units.

ASME B16.36 Standard covers pressure-temperature ratings, dimensions, materials, testing, tolerances, and making of flanges similar to those covered in ASME B16.5 standards that have orifice pressure differential connections. Coverage is limited to the following: (1) slip-on and threaded Class 300. (2) welding neck flanges Classes 300, 400, 600, 900, 1500, and 2500

This standard covers Steel Pipe Flanges from NPS 1/2 through NPS 24 Metric/Inch in pressure class 150, 400, 300, 600, 900, 1500, and class 2500. Its dimensions, materials, marking, tolerances, covers pressure-temperature ratings, testing, and methods of designating openings for pipe flanges. B16.5 is limited to flanged fittings and flanges made from forged or cast materials.

DIN Standard Flanges covers as per the following list: DIN 2641 through 2642 for lap joint flanges, DIN 2501 through 2503 for flat ring flanges, DIN 2565 through 2569 for threaded/companion flanges, DIN 2627 through 2633 for weld neck flanges, DIN 2512 through 2519 for alternate face flanges, DIN 2527 for blind flanges.

"JIS” Stands for Japanese Industrial Standard and is published by the JSA which is the equivalent of ANSI in the United States. They are created and updated by the Committee of the JISC. Like the Japanese Standards Association (JSA) to ANSI, the Japanese Industrial Standards (JISC) is similar to the ASME. It is another option for metric sizes available in JIS 5K, JIS 10K, JIS 15K, and JIS 20K pressure classes.

ISO flanges also called Large ISO and its stands for International Standards Organization. Two flanges "styles" i.e. ISO-K flanges and ISO-F flanges. ISO-K flange uses a separate clamp placed around the flange's periphery and ISO-F flange uses conventional bolt holes and nuts/bolts. ISO flanges are limited to applications with temperatures between ~0° C and 120—180° C (by the O-ring's properties), and pressure from atmosphere to ~10-8 Torr or mbar.

This European Standard specifies requirements for circular steel flanges in PN designations PN 2, PN5 to PN 400, and nominal sizes from DN 10 to DN 4000. This standard specifies the flange types and their facings, pressure/ temperature ratings, tolerances, dimensions, bolt sizes, threading, flange face surface finish, materials, marking, and flange masses.

UNI Flange Standards eliminates the problems of prefabricated, pre-engineered piping systems. Pipe fabrication can be performed on-site, using a plain end pipe, a pipe cutter, and a wrench. No threading, welding, or grooving is necessary. The UNI Flange eliminates the need to rely on off-site fabricators and machine shops. It is ideal for projects that involve retrofitting or renovation of existing piping systems.

AWWA stands for American Water Works Association. AWWA Flange Standards differ from ANSI and ASME certifications in a variety of ways. AWWA standards provide flange properties intended for potable water use only. AWWA standards encompass lettered flange classes F, E, B, and the commonly used class D connection. AWWA provides ratings for a much larger range of nominal pipe sizes i.e. 3″-144″.

GOST flange is a Russian flange system, Blind Flanges(GOST12836-67), include Plate Flanges(GOST12820-80), Steel Butt-Welded Flanges GOST12821-80, Welding neck Flanges(GOST12821-80), etc., size from DN15 to DN1600, welding neck flange, Plate flange, slip-on welding plate flange. Pressure: PN6Mpa, PN10Mpa, PN16Mpa, PN25Mpa, PN40Mpa, PN64Mpa, PN100Mpa, PN160 Mpa.

API Stands for American Petroleum Institute. Many characteristics of API 6A specification are similar to ASME/ANSI flanges. With existing API flanges, some of the RTJ styles from ASME B16.5 do match up dimensionally. A105 carbon steel is used in the production of API 6A flanges in 5000# class and below with a 45K minimum yield strength, whereas the API 6BX flanges of 10000# class and above require even higher yield strength steel.

AS/ANZ 4331.1 Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee ME/1 on Pressure Equipment. It has been reproduced from and identical with ISO 7005-1:1992, Metallic flanges, Part 1: Steel flanges. The objective of this Standard is to provide manufacturers, designers, and users with an international Standard for flanges for use in pressure applications.

GB standards are also known as Guobiao Standards, it is the China national standards, China GB standards are classified as two stages, Recommended or Mandatory. Mandatory standards are enforced by administrative regulations and laws and concern the protection of human health, safety, and personal property. All Recommended standards are fall outside of these characteristics.

BS stands for British standards. Bs 10 standard use in the manufacturing of Flanges to ensure that products are of consistently high quality, comply with regulations and also help to prevent product failures and recalls. We produce BS 10 Table D Flanges, BS 10 Table E Flanges, BS 10 Table F Flanges. British metric standard BS4504 is now replaced and obsolete by EN1092-1 for steel flanges which also incorporates DIN standard.

Korean Standard Flanges are also known as KS Flange. there are different types of KS flanges such as KS B 1503 5KG flange, KS B 1503 10KG flange, KS B 1503 16KG flange, KS B 1503 20KG flange, KS B 1503 30KG flange, KS B 1503 40KG flange, KS D 4308 flange, KS D 3578 flange, KS B 2332 & 2333 flange, KS B 6216 flange. It is Produced in all standard sizes, dimensions, and pressure-temperature ratings.