GOST 12821 Stainless Carbon Steel Welding Neck Flange
Picture
| PN/Мpа | 0.1-0.6 | 1.0-6.3 | 10 | 16 | 20 |
| DN/MM | 10-1600 | 10-1200 | 10-400 | 15-300 | 15-200 |
| От минус 253 до плюс 600° | |||||
| STEEL 20,25,Q235,304,316 | |||||
Data
| Welding Neck Flange | |||||||||
| Standard | ANSI | ANSI B16.5, ASME B16.47 series A/B | |||||||
| DIN | Germany 6bar, 10bar, 16bar, 25bar, 40bar | ||||||||
| GOST | GOST 12820/12821/12836 | ||||||||
| EN1092-1 | EN1092-01/05/11/12/13 | ||||||||
| JIS | JIS B 2220-1984, KS B1503, JIS B 2216 | ||||||||
| BS4504 | BS4504 BS10 Table D/E | ||||||||
| Items | Plate, Welding Neck, Slip on, Blind, Socket Welding, Lap joint, Threaded Flange etc. | ||||||||
| Material | ASTM A105 ST37.0 A350 LF2 A694 F60 A694 F70 SS304 SS321 SS316 | ||||||||
| Nominal Pressure | class150 PN16 PN10 | ||||||||
| Applicable Medium | oil,gas,water or other medium; | ||||||||
| Technology | Forge&CNC machining | ||||||||
| Delivery Time | 15-60 days | ||||||||
| Payment Term | FOB,CIF | ||||||||
| Packaging | Plywood cases | ||||||||
Product Introduction
GOST 12821 PN1.6 welding neck flange belongs to the Russian standard flange system. It is one of the manifestations of Russian standard flange (also known as GOST flange), and it is a common flange on equipment or pipeline.
Now the field of application of the flange is more and more widely, but not for professionals to choose the right flange is very difficult, just to face so many flange standards, we are not very clear. So let me take the Russian standard flange as an example. Explain it
Sealing surface form: protrusion (RF), concavo-convex (MFM), tongue and groove (TG), ring connection (RJ)
Material: Carbon Steel: ASTM A105, 20 #, Q235, 16Mn, ASTM A350 LF1, LF2 CL1 / CL2, LF3 CL1 / CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70;
Stainless steel (Stainess Steel): ASTM A182 F304, 304L, F316, 316L
Manufacturing standards: ANSI B16.5, HG20619-1997, GB / T9117.1-2000-GB / T9117.4-200, HG20597-1997
Connection: flange nut, bolt connection
Production process: professional forging, forging manufacturing and so on
Processing methods: high-precision CNC lathe turning, general lathe fine car, welding and other processing
Applications: Boiler and pressure vessels, petroleum, chemical, shipbuilding, pharmaceutical, metallurgy, machinery, stamping elbow food and other industries.
Welded neck flange not easy to distortion, good sealing, widely used, butt thinning transition weld joints ,horn shape, avoid shape change when welding in high temperature. applicable to high temperature pipeline, high pressure and low temperature pipeline, normally used to connect pipes and valves which PN is greater than 2.5MPa; also used to transport expensive, flammable, explosive media pipeline.
1.Shrink bag–> 2.Small Box–> 3.Carton–> 4.Strong Plywood Case
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Packing & Shipment
1.Professional manufactory.
2.Trial orders are acceptable.
3.Flexible and convenient logistic service.
4.Competitive price.
5.100% testing,ensuring the mechanical properties
6.Professional testing.
1.We can guarantee the best material according to related quotation.
2.Testing is performed on each fitting before delivery.
3.All packages are adapt for shipment .
4. Material chemical composition is conformed with international standard and environment standard.
A) How can I get more details about your products?
You can send an email to our email address. We will provide catalogue and pictures of our products for your reference.We can also supply pipe fittings, bolt and nut, gaskets etc. We aim to be your piping system solution provider.
B) How can I get some samples?
If you need, we will offer you samples for free, but new customers are expected to pay express charge.
C) Do you provide customized parts?
Yes, you can give us drawings and we will manufacture accordingly.
D) To which country have you supplied your products?
We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru , Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.).
E) I can’t see the goods or touch the goods, how can I deal with the risk involved?
Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.
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