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Heavy-Duty Piping & EPC Projects Large Diameter Tees custom

Heavy-Duty Piping & EPC Projects Large Diameter Tees Manufacturers

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Material & Manufacturing Process

Large Diameter Tees for Heavy-Duty Piping & EPC Projects.GX Fitting manufactures large diameter tees for demanding piping systems where dimensional accuracy, structural integrity and reliable flow distribution are essential. Our tees are available in carbon steel, alloy steel, stainless steel, Duplex, Super Duplex, 254SMO, nickel alloys, Hastelloy, titanium and other special materials. Depending on size, wall thickness and design requirements, manufacturing may involve hot forming, pressing, forging, welding and customized fabrication, followed by heat treatment and precision machining. Raw materials are verified through chemical composition analysis and full traceability control. Dimensional inspection, mechanical testing and NDT such as UT, RT, PT and MT can be performed according to project specifications. With manufacturing experience since 1993, GX Fitting provides specialized large diameter tee solutions for global EPC projects.

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Product

Large Diameter Tees Technical Specifications

ParameterSpecification Detail
Material GradeDuplex, Super Duplex, 254SMO, Hastelloy
Design StandardASME B16.9
Size RangeDN15 to DN3800 (150")
CertificationPED, AD2000, DNV, NORSOK M-650, ABS, BV, ISO
Testing / InspectionUltrasonic (UT), Radiographic (RT), Magnetic Particle (MT), Penetrant (PT)

Specification Range

GX Fitting specializes in large diameter tees covering sizes from DN15 to DN3800 (150"), with particular expertise in oversized and heavy-wall components. Our product range includes equal tees, reducing tees and customized branch fittings designed according to project drawings and engineering specifications. Tees can be manufactured to applicable standards including ASME B16.9, ASTM, EN, DIN, JIS, GB/T and customer-specific requirements. Different wall thicknesses, branch dimensions and configurations can be accommodated according to piping design requirements. For large and non-standard tees, our engineering team evaluates forming methods, material grade, heat treatment and inspection requirements before production. Complete material traceability, EN 10204 3.1 certificates and project-specific quality documentation can be provided.

Product Advantages

Large diameter tees require specialized forming technology, equipment and process control to achieve consistent geometry and mechanical performance

  • Heavy-Wall Production Capability: GX Fitting has strong manufacturing capability for oversized and heavy-wall tees, supported by multiple forming presses with a maximum capacity of 6,800 tons
  • Special Material Expertise: Our experience allows us to handle challenging dimensions, thick sections and special alloy materials that may be difficult to source from conventional suppliers
  • Precision Dimensional Control: Each tee is subject to controlled production procedures covering material verification, forming, heat treatment, dimensional inspection and final quality control
  • International Certification: Our international certifications and approvals include DNV, NORSOK M-650, PED, AD2000, ABS, BV and ISO systems
  • Rigorous Testing & Inspection: We can also coordinate additional NDT and third-party inspection according to EPC project requirements.

Applications

Large diameter tees are essential for dividing and distributing flow in major piping systems, particularly where high flow capacity and robust mechanical performance are required. GX Fitting tees are suitable for oil & gas pipelines, refineries, petrochemical facilities, power plants, chemical processing, offshore platforms, marine systems, water treatment and large-scale industrial projects. Our large-diameter capability is particularly valuable for main transmission lines, process piping and other systems involving oversized pipe dimensions or heavy wall thicknesses. Depending on operating conditions, tees can be supplied in carbon steel, alloy steel, stainless steel, Duplex, Super Duplex and nickel-based alloys. GX Fitting works with EPC contractors, engineering companies and industrial customers to provide customized tee manufacturing, inspection and documentation solutions for complex piping projects.

  • Q: What size and pressure range is available for Large Diameter Tees?
  • A: We supply Large Diameter Tees covering sizes from DN15 to DN3800 (150"), manufactured according to project specifications.
  • Q: What materials and standards apply to Large Diameter Tees?
  • A: We manufacture Large Diameter Tees in materials such as Duplex, Super Duplex, 254SMO, Hastelloy and to standards including ASME B16.9, with full material traceability available on request.
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Jiangyin Gaoxin Pipe Fittings Co., Ltd.
About Us
JIANGYIN GAOXIN PIPE FITTINGS CO.,LTD.
Our company is a professional manufacturer of pressure piping components. As Heavy-Duty Piping & EPC Projects Large Diameter Tees Manufacturers，Our product range covers butt-weld, socket-weld, and threaded pipe fittings, including flanges and customized non-standard parts. These products are widely used in industries such as oil & gas, chemical processing, power generation, shipbuilding, papermaking, metallurgy, pharmaceuticals, and food processing. We manufacture according to standards such as ASME, EN,JIS,DIN,ANSI,GOST, MSS, GB/T,HG, DL, SH, SY,and have a complete range of inspection equipment, a strict quality control system, and various certifications（PED,AD2000,EAC, ABS,BV, DNV,NORSOK M650, ISO9001,ISO14001,ISO45001,etc.）, making us a leader in the industry.

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