Weld Neck Flanges , ASTM A 105, ASTM A 181, ASTM A 182, GR F1, F11, F22, F5, F9, F91, A182 F 304, 304L, 304H, 316, 316L
YUHONG deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube, fitting, flange already more than 25 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by :ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004.
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Super Duplex Steel Flange ASTM A182 F53( S32750 / 1.4410) F55( S32760 / 1.4501) ,F51 2" 150LB B16.5
Usage:offshore, subsea , platform , oil and petroleum , chemical industry ,sea water , ...
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Din Standard Flanges
Pipe Flanges are widely used as a popular category of pipe fittings. A flange is used to mechanically connect two pipes together. It can also be used to mechanically connect a pipe to a tee, valve, choke or any other piece of equipment. Flanges are available in round, square, and rectangular shapes. In some cases, flanges are usually in the shape of a ring or a plate to form a rim at the end of a pipe when fastened to the pipe. This is an example of closet flange. A flange can also be a plate for covering or closing the end of a pipe. This is a blind flange. Thus, flanges are considered to be projecting or internal components which are used to support mechanical parts. They are like rims which are used to strengthen the mechanical part or they are a means of attaching that part to another part or surface.
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We offer high quality DIN flanges that conform to the standard specifications of DIN
- Deutsches Institut for Normung (German Institute for Standardization). These din standard flanges can be availed in different material specifications including carbon steel, stainless steel and alloy steel. Available at the most reasonable prices, our steel DIN flanges can work efficiently under high temperature and pressure.
Designs of flanges:
A wide variety of flange designs are available. They are available in various shapes and sizes. Some of the popular designs are as follows:
- Butt weld
- Socket weld
- Captive
- Split
- Square
- Round
- Rectangle etc.
Custom shapes and sizes are also manufactured by numerous manufacturers. Various pipe flanges include machining details such as gasket surfaces, facing details, non-standard drilling, bevel and radius edges, o-ring grooves and raised or recessed faces. Some typical designs on flanges faces are shown below.
| Raised Fase |
Chamfer |
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| Counter Bore |
O-Ring Groove |
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| Radius |
Gasket Surface |
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Applications of pipe flanges:
Pipe flanges are widely used in pipe fittings of various industrial, commercial and residential applications. Pipe flanges can be customized to suit your application with various machining details. These pipe flanges have been used extensively in:
- UHV applications
- Hydraulic control systems for turbine generators
- High pressure ground support missile systems
- Nuclear and conventional power plant applications etc.
| DIN 2502 |
DIN 2503 |
DIN 2527 |
| DIN 2565 / 2566 |
DIN 2573 / 2576 |
DIN 2627 / 2628 |
| DIN 2629 / 2630 |
DIN 2631 |
DIN 2632 |
| DIN 2633 |
DIN 2634 |
DIN 2635 / 2636 |
| DIN 2637 / 2638 |
DIN 2641 |
DIN 2642 |
| DIN 2655 / 2656 |
DIN 86029 / 86030 |
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