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Flanges
Flanges are mostly used to connect pipes with various equipment and valves. Flange connection is a common connection method second only to welding. Flange joint refers to the removable connection of flanges, gaskets and bolts as a group of combined sealing structure, which provides flexibility for maintenance.
Size:
1/2″(15NB)-60″(1500NB), DN 10-DN 4000
Class:
Class 150-Class 2500, PN 2.0-PN 100, 1 Bar-400 Bar, 5K-63K, 0.25Mpa-42.0Mpa
Material:
Nickel Alloy Steel, Copper Alloy, Stainless Steel, Duplex and Super Duplex Steel, Carbon steel, Low Temp Carbon Steel, High Yield Carbon Steel, Alloy Steel, Titanium…
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- Description
- 参数
- Technical Info
- MFG Process
- Packaging
- Q&A
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Flanges are mostly used to connect pipes with various equipment and valves. Flange connection is to fix two pipes, pipe fittings or equipment on a flange respectively, add flange pads/gaskets between the two flanges, and fasten them together with bolts to complete the connection. Some pipe fittings and equipment have built-in flanges, which also belong to flange connection, such as water pumps and valves. Flange connection is an important connection mode for pipeline construction. Flange connection is convenient for installation and maintenance and can withstand large pressure.
The Flanges of Shanghai BISCO International Corporation has the advantages of high strength and complete types and specifications. If there is a need of this product, please feel free to contact us, we will provide you with a quotation within 24 hours since receiving your inquiry.
Specification
1. Commodity: Flanges
2. Standard: ASME B 16.5, ASME B 16.36, ANSI B 16.5, ANSI B 16.47, ISO7005-1, BS4504-3.1, API605, DIN 2630-DIN 2638, DIN 2501, DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2655, DIN 2656, JIS B 2220, GB/T 9112-9113.4, JB/T 74-86.2, GB/T 17241, GB/T 15530, JB/T 4701-JB/T 4703, GB573-581, GB2506-2507, GB4450, GB10746-10749, GB/T9117, HG20592-20626…
3. Nominal Size: 1/2″(15NB)-60″(1500NB), DN 10-DN 4000
4. Pressure Class: Class 150-Class 2500, PN 2.0-PN 100, 1 Bar-400 Bar, 5K-63K, 0.25Mpa-42.0Mpa
5. 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 (ASTM A182 F304、304L、 F316、316L、1Cr18Ni9Ti、0Cr18Ni9Ti、321、18-8);
Alloy Steel (ASTM A182 F1, F5a, F9, F11, F12, F22, F91、A182 F12、A182 F11、16MnR、Cr5Mo、12Cr1MoV、15CrMo、12Cr2Mo1、A335P22、St45.8/Ⅲ)
6. Production Method: forging, casting, cutting and rolling
7. Gasket Face: Full Face/Flat Face (FF), Raised Face (RF), Male Face (M), Female Face (F), Male-Female Face (MF), Tongue Face (T), Groove Face (G), Tongue-Groove Face (TG), Ring Joint Face (RJ)
8. Category: Plate Flange (PL), Slip on Flange (SO), Weld Neck Flange (WN), Socket Welding Flange (SW), Screwed/Threaded Flange (TH/TR), Lap Joint Flange (LJ), Blind Flange (BL), Large Caliber Flange, Spectacle Flange, Spade Flange, Integral Flange (IF/IT), Pressure Vessel Flange, Reducing Flange (REDF), Non-Standard Flange…

Application
Flange has good comprehensive performance and is widely used in basic projects such as chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire protection, electric power, aerospace, shipbuilding and so on.
1. Flat welding flange is applicable to carbon steel pipe connection with nominal pressure not exceeding 2.5MPa. The sealing surface of flat welding flange can be made into smooth type, concave convex type and tenon groove type. Smooth flat welding flange has the largest application, and is mostly used when the medium conditions are relatively mild, such as low-pressure non purified compressed air and low-pressure circulating water. Its advantage is that the price is relatively cheap;
2. Butt welding flange is used for butt welding of flange and pipe. It has reasonable structure, large strength and rigidity, can withstand high temperature and high pressure, repeated bending and temperature fluctuation, and has reliable sealing. The butt-welding flange with nominal pressure of 0.25-2.5mpa adopts concave convex sealing surface;
3. Socket welding flange is commonly used in pipes with PN ≤ 10.0MPa and DN ≤ 40;
4. Lap joint flange, commonly known as loose flange, is divided into welding ring looper flange, flanging looper flange and butt welding looper flange. It is often used when the medium temperature and pressure are not high and the medium is highly corrosive. When the medium is highly corrosive, the part of the flange contacting the medium (flanging nipple) is made of high-grade corrosion-resistant materials such as stainless steel, while the external part is clamped by the flange ring of low-grade materials such as carbon steel to achieve sealing;
5. Integral flange is often integrated with equipment, pipes and valves. This type is commonly used in equipment and valves.

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Technical Specification of Flanges
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Manufacturing Process of Flanges


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There are two packaging options for the product of Shanghai BISCO International Corporation.
1). When customers have no special requirements for packaging, the product will be packed in accordance with BISCO's standard, which entirely conforms to industry standards, and we guarantee the safety of storage and transportation of the product.
2). When customers put forward special packaging requirements, BISCO will pack the product in line with the proposed requirements on the basis of ensuring the safety of its storage and transportation.
Shanghai BISCO International Corporation has also established long-term and stable partnership with major logistics service providers. With their powerful transportation network, BISCO can deliver the product to customers safely at the first time.

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1. Why should I choose BISCO?
experience in domestic and international business of metal materials and products, and the products have been exported to more than 50 countries and regions, providing professional services to global customers. BISCO’s sales have the experiences of domestic and international industrial production and engineering construction projects, who are able to assist customers in choosing the best products and answering project problems. Choose to cooperate with BISCO, which means you will have the full-process service and worry-free transactions.
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BISCO has its own processing plant and has a large inventory of basic products. The raw materials are sourced from large-scaled mills, and established long-term and stable cooperative relations with them. BISCO can obtain raw materials at prices lower than the market, so its comprehensive leading cost and resource advantages enable products to be delivered to customers at the most competitive price.
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YES! For metal materials, BISCO can basically provide samples; for processed metal products, BISCO can help make samples.
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7. How does BISCO ensure product quality?
First of all, the raw materials used to produce metal products by BISCO are sourced from large-scaled mills, it will eliminate defective products from the source. Secondly, BISCO’s processing plant has advanced processing facilities and strict product packaging standards, the quality inspection of products executed by the independent quality inspection department before delivering products to customers will be completed. Finally, BISCO also allows customers to arrange pre-shipment inspection for the cargoes. From the source till the end, BISCO will ensure the quality of products.
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9. How to get a quotation from BISCO as soon as possible?
Click the button of Get a price on the product landing page to submit an inquiry, BISCO will quote you within 24 hours since receiving the inquiry. If there is an urgent purchase requisition, you can get in touch with BISCO in time through the contact information listed in Contact Us.
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