Hebei Longrun Pipeline Group Co., Ltd

Threaded Flange

【 Size 】 1/2 inch (15 NB) to 60 inch (2000 NB)
【 Certificate 】: We are a company that has passed ISO certification CE，EAC， Certified factories can meet industry requirements
【Materials 】 A105, 20 # Q235 SS400, SF440 RST37.2, S235JRG2, P250GH, C22.8, etc.
【 Stainless steel 】: ASTM A 182、A 240 F 304、304L、304H、316、316L、316Ti、310、310S、321、321H、317、347、347H、904L，15CrMo、F11、F91，
【 Surface treatment 】: Oil coating, etc
【 Packaging 】: Tray/wooden crate.

Application

Weld Neck (WN): Welding the neck to the pipeline, high strength, high pressure and high temperature resistance, suitable for harsh working conditions such as petrochemicals and electricity.
Socket Weld Flange (SW): Pipeline insertion flange socket welding, suitable for small-diameter high-pressure pipelines (≤ DN50).
Threatened flange: The flange has a threaded inner hole and is connected to the pipeline thread. It is suitable for non welding applications (such as gas and explosion-proof environments).
Blind flange: without a central hole, used to seal the end of a pipeline or isolate a system for easy maintenance.
Lapped Joint: The flange ring is connected to the pipeline through flanging or welding, saving materials and suitable for corrosive media (only replacing the flange ring)

Product Material

**Carbon steel flange * * A105, Q235B, 20 # steel, widely used in general working conditions (water, steam, oil).
**Stainless steel flanges * * 304, 316, 316L, corrosion-resistant, used in the chemical, food, and pharmaceutical industries.
**Alloy steel flange * * 15CrMo F11、F91， High temperature and high pressure resistance, used for power plants and petrochemical high-temperature pipelines.
**Plastic flange made of PVC, PP, PTFE, resistant to acid and alkali corrosion, used in chemical and sewage treatment.
**Special material flange * * titanium, Hastelloy, Monel, used for strong corrosion or extreme environments (such as marine and nuclear industries)

Product Standards

**National standard (GB) * * GB/T 9112~9124, pressure rating PN series (PN6~PN420).
**American standard (ASME) * * ASME B16.5, B16.47, pressure rating is Class 150-2500.
**DIN * * DIN 2527, 2635, etc., divided into PN series (PN6~PN100) and Bar pressure units.
**Japanese Standard (JIS) * * JIS B2220, pressure levels include 5K, 10K, 16K, 20K, etc.

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