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.
Competitive advantage
.
Precision forging, strong structure, high pressure resistance
Advanced precision forging ensures a dense internal structure without pores or cracks, featuring excellent strength and pressure resistance for stable operation under high pressure without deformation or leakage.
01
Excellent sealing, high temperature and corrosion resistance
Precision CNC-machined sealing surface ensures tight fit with gaskets for leak-proof performance, and optional materials enable resistance to high/low temperatures and corrosive media.
02
Accurate dimension, easy installation, long service life
CNC machining ensures standard-compliant dimensions and good interchangeability; reasonable design facilitates installation, and professional treatment extends service life.
03
Support customization, drawing processing, mass production
Professional team provides custom, drawing-based processing, with strong production capacity to meet mass order needs and stable supply.
04
Factory direct supply, competitive price, on-time delivery
Factory-direct sales eliminate intermediaries for competitive prices; complete supply chain ensures on-time delivery to avoid project delays.
05
Quality connects the world, professionalism serves customers.
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