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Neck flange is a proper term, divided into neck flat welded flange and neck butt welded flange. The international standard for pipe flanges can be summarized as two different and non-interchangeable pipe flanges systems.
PRODUCT INFORMATION
There are two main international pipe flange standards, namely, the European pipe flange system represented by the German DIN(including the former Soviet Union) and the American pipe flange system represented by the American ANSI pipe flange. In addition, there are Japanese JIS pipe flanges, but they are generally only used for public works in petrochemical installations, and have less impact internationally.
Product Parameters
Name | Flat welded flange |
Surface | Anti-rust oil |
Process | Forging+machining+heating Treatment |
Application | Gas Oil Water System |
Service | OEM ODM |
Dimension | 1/2", 2", 3", 4", 6", 8", 10", up to 24",or according to your requirements |
Class range | Class 150 to 2500(# or LB). PN 2.5 to PN 250 |
Flange face type | RF (Raised Face), RTJ (Ring Type Joint) |
Packaging | Standard export packing or as your request |
Payment Method | Wire transfer, spot letter of credit, Western Union, payment documents, acceptance documents, PayPal. |
Standard for flat welded flanges
National standardflange (National Standard flange) refers to the flange produced in accordance with the national standard of the People's Republic of China "GB/T 9112~9124-2010 steel pipe flange".
The national standard flange standard is jointly issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of China on 2011-01-10, and is a recommended standard implemented from 2011-10-01.
GB/T 9112~9124-2010 includes the following 13 standards:
Instead of the national standard GB/T9112-2000; GB/T10745-1989 standard
GB/T 9112-2010 Steel pipe flange types and parameters
GB/T 9113-2010 Integral steel pipe flange
GB/T 9114-2010 Pipe flange with neck rebar
GB/T 9115-2010 butt welded steel pipe flange
GB/T 9116-2010 Flat welded steel pipe flange with neck
GB/T 9117-2010 Welded steel pipe flange with neck socket
GB/T 9118-2010 butt welded ring collar loose sleeve steel pipe flange
GB/T 9119-2010 flat welded steel pipe flange
GB/T 9120-2010 butt welded ring plate loose sleeve steel pipe flange
GB/T 9121-2010 Flat welded ring plate loose sleeve steel pipe flange
GB/T 9122-2010 flanged ring plate loose sleeve steel pipe flange
GB/T 9123-2010 Steel pipe flange cover
GB/T 9124-2010 steel pipe flange
Technical condition
The pressure marks specified in this standard are divided into PN marks and Class marks.
The PN mark has 12 pressure levels
They were PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160; PN250; PN320; PN400
The Class marker has 6 stress levels
They are :Class 150; Class 300; Class 600; Class 900; Class 1500; Clas
QUALITY INSPECTION
We have won many stable customers with our excellent quality and good service. The company's products are subject to third-party testing. We hope you can become one of our good customers. Please feel free to contact us.
PACKING AND SHIPPING
In order for the products to arrive safely, we choose sturdy sea-resistant packaging or according to your needs. Professional and sturdy packaging to protect plates, coils, profiles, bars, pipes, wire rods etc. to the greatest extent and avoid bumps and scratches during transportation.
CUSTOMER FEEDBACK
We can provide one-stop services, including transportation, customs clearance and insurance, so that you can handle logistics matters more easily.
Products that are being sold at low prices We will deal with a batch of extruded inventory at ultra-low prices from time to time. The products we deal with include steel pipes, steel plates, round bars, steel bars, steel coils, profiles, rails, wires, etc. Our purpose in dealing with inventory at low prices is to quickly monetize the goods for our daily expenses of steel production. Low-priced products are given priority to regular customers. If you are interested in low-priced steel, please contact us quickly.
8613122742391
Largesteelfactory.com
Shanghai, China
Shanghai Iron and Steel Group will continue to adhere to the concept of innovative, green and high-quality development, continuously improve its core competitiveness, and contribute more to the progress and development of the global steel industry. The product range is complete, and it can produce ordinary and high-quality carbon structural steel plates, steel coils, round steel, steel bars, low-alloy high-strength structural steel plates, steel coils, round steel, steel bars, etc., which are widely used in shipbuilding, marine engineering, construction machinery, petrochemical, wind power, bridge construction, pressure vessels, molds and other fields.
