Application Scenarios
Weld neck flanges are often used in high-pressure, high-temperature, or low-temperature piping systems, particularly in applications where the flow of fluid through the piping system is not restricted. Because of its superior pressure and sealing properties, the weld neck flange has been widely applied in the fields of oil, chemical, natural gas, etc.
Performance Advantages
High pressure bearing capacity: Weld neck flange is welded to the pipe, forming a solid whole structure, able to bear high pressure.
Good sealing property: The sealing face of the weld neck flange is processed accurately, which can be closely matched with the matching flange, so as to guarantee the good sealing effect.
Unlimited fluid flow: Weld neck flange hole diameter is equal to pipe hole diameter, allowing unlimited flow of fluid in pipe system and reducing fluid resistance.
Easy inspection and maintenance: The design of weld neck flange facilitates non-destructive inspection, for example radiographs, to detect and repair potential leakage and welding defects.
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Product name |
4 Raised Face Weld Neck Flange |
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Material |
SS201, SS304/CF8, SS316/CF8M and so on |
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Size |
1/4''-4''&DN6-DN100 |
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Certificate |
ISO9001: 2000, CE |
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Pressure |
150LB |
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Connection Ends |
Socket Weld or Threaded: NPT, BSP, BSPT etc |
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Suitable medium |
Petroleum, chemical, power, gas, water, pipeline, heat exchanger, shipbuilding, construction, high&low pressure pipeline, etc |
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Temperature Range |
-20-300 degree C |
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Type |
Elbow, tee, street elbow, cross, coupling, hex nipple, barrel nipple, plug, bushing, cap, union, hose nipple, welding nipple, hex. nut, etc |
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Our advantage |
We have been worked in this area for more than 15 years, and we know each market's request, with a good reputation among our customers, we always pursuit a high quality and best service and price |
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Sample test before machining, and 100% test after the machining |
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We also have a series of products such as: flanges, pipes, forged fittings, ball valves and butterfly valves; And some hardware parts such: post anchors, ground screws, and some other wooden connectors |
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7 days / 24 hours online service, and fastest delivery time |
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We can do OEM products |
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Delivery time |
Usually 25 days around and can negotiate as per order qty |
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Shipping port |
TIANJIN XINGANG |
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Term of Payment |
T/T, L/C, DP, etc |
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Package detail |
Polybag+cartons+pallet / wooden case |
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Application |
Stainless steel pipeline system, water system, petroleum system, etc |
Installation Precautions
Size matching: when installing weld neck flanges, it is necessary to ensure that their dimensions (such as NPS and pipeline list) match the dimensions of the connecting pipeline to ensure the firmness and sealing of the connection.
Welding quality: Welding is the key link between the weld neck flange and the pipeline, and it is necessary to ensure that the welding quality meets the relevant standards and requirements to avoid welding defects and leakage problems.
Sealing surface protection: in the process of installation, it is necessary to pay attention to the protection of the sealing surface of the weld neck flange to avoid it being damaged or polluted, so as to ensure a good sealing effect.
