Flange

Professional Flange Manufacturer · Connecting Global Pipelines

Flanges are key connecting parts in pipeline systems, widely used in petroleum, chemical, natural gas, power, water treatment, shipbuilding, metallurgy and various industrial projects.We specialize in R&D, production and export of high-quality flanges, strictly following international standards, providing stable, reliable and efficient pipeline connection solutions for customers worldwide.

Product Range

⒈ Weld Neck Flange (WN)

● Features a long neck structure, connected to pipes by butt welding.

● High strength, good rigidity, anti-vibration, excellent sealing.

● Suitable for high-temperature, high-pressure, flammable, explosive and toxic medium pipelines.

⒉ Slip-on Flange (SO)

● Sleeved outside the pipe and welded, easy to install.

● Low cost and high versatility.

● Mainly used in medium and low pressure, normal temperature working conditions.

⒊ Blind Flange (BL)

● No central hole, used to seal pipe ends.

● High pressure resistance, convenient for later maintenance and expansion.

● Widely used at pipe ends, equipment plugging and pressure test systems.

⒋ Threaded Flange (TH)

● Connected by thread, no welding required.

● Quick installation, ideal for explosion-proof, non-welding and emergency repair sites.

● Mainly used for small-bore, medium and low pressure pipelines.

⒌ Socket Weld Flange (SW)

● Pipe inserted into the socket and welded.

● Good sealing performance, low leakage risk.

● Suitable for small-bore, high-pressure pipelines.

⒍ Lap Joint Flange (LJ)

● Rotatable for easy bolt hole alignment.

● Suitable for non-ferrous metal pipelines and frequent disassembly scenarios.

● Corrosion resistant and flexible in installation.

Manufacturing Standards

ASME B16.5, MSS SP44.

ASME B16.5: pipe flange and flanged fittings.

MSS SP-44: flange pipeline flanges.

Steel Flange Material Grade

Carbon steel flange: ASTM A105, A649 F42, F52

Low temperture alloy steel flange: ASTM A350 LF2.

Products Application

Oil & Gas, Refinery, Power Plant, Water TreatmentMunicipal Engineering, Shipbuilding, Chemical Pipeline, Metallurgy.