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Precision Butt Weld Concentric Reducers custom

Precision Butt Weld Concentric Reducers Manufacturers

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Material & Manufacturing Process

Precision Butt Weld Concentric Reducers | Seamless & Welded Flow Transition Fittings.

Manufactured in full compliance with ASME B16.9 and EN 10253 standards, our butt weld concentric reducers provide smooth fluid acceleration or deceleration along a central baseline. Utilizing advanced hot-mandrel push forming, precision cold swaging, and heavy hydraulic forging, we process a broad spectrum of certified materials. This includes carbon steel (ASTM A105, A234 WPB, A350 LF2), stainless steel (304/304L, 316/316L), duplex & super duplex alloys (S31803, S32750), and nickel-based alloys (Inconel 625, 254SMO). Fully compliant with NACE MR0175/ISO 15156 for sour service, each reducer undergoes controlled heat treatment, exact end-beveling, and mandatory 100% NDT inspection (UT, RT, MT, PT) to guarantee flawless structural integrity.

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Butt Weld Concentric Reducers Technical Specifications

ParameterSpecification Detail
Material GradeASTM A105, S31803, S32750, Inconel 625, 254SMO
Design StandardASME B16.9, EN 10253, NACE MR0175/ISO 15156
CertificationPED, AD2000, DNV, NORSOK M-650, ABS, BV, ISO, NACE MR0175, EAC
Testing / InspectionUltrasonic (UT), Radiographic (RT), Magnetic Particle (MT), Penetrant (PT)

Specification Range

Jiangyin Gaoxin Pipe Fittings Co., Ltd. offers a complete inventory of seamless and welded butt weld concentric reducers for optimized pipeline velocity control. Backed by heavy hydraulic presses with capacities reaching up to 6,800 tons, our factory manufactures fittings across an expansive size range. Dimensional coverage spans from small-bore lines (DN15 / 1/2") up to extra-large outer diameter fabrications reaching DN3800 (150"). Wall thicknesses range from light-wall Schedule 10/40/80 up to XXS and custom heavy-wall specifications up to 100mm. Advanced coordinate measurement systems rigorously inspect every critical dimension, ensuring concentric alignment, smooth wall taper, and effortless site butt-welding.

Product Advantages

Operating since 1993 under an ISO 9001 certified quality management system, our company guarantees exceptional pressure integrity, uniform wall thickness, and high fatigue resistance

  • Optimized Flow Performance: Our concentric reducers carry recognized global credentials, including PED 2014/68/EU, AD2000, EAC, NORSOK M-650, and marine classification approvals from DNV, ABS, and BV. Gradual taper geometry minimizes turbulent flow eddies, energy loss, and internal erosion under high velocity
  • Full Traceability & Documentation: Every shipment is delivered with an EN 10204 3.1 Mill Test Certificate featuring full 100% heat-number raw material traceability
  • Rigorous Testing & Inspection: Paired with sea-worthy protective export packaging, our reducers protect client infrastructure while lowering lifetime total cost of ownership.

Applications

Designed to connect pipes of different diameters along a straight vertical or horizontal centerline, our concentric reducers are essential components in global process piping systems. They are widely installed in vertical pump discharge piping, compressor stations, gas headers, and heat exchanger loops. Furthermore, our NACE-compliant carbon, stainless steel, and special alloy concentric reducers serve in offshore oil and gas production platforms, FPSO facilities, subsea manifolds, LNG liquefaction processing plants, petrochemical refineries, and nuclear power installations. Their high structural stability and pressure handling ensure continuous, zero-leak operational safety across severe temperature, pressure, and corrosive processing environments worldwide.

  • Q: What materials and standards apply to Butt Weld Concentric Reducers?
  • A: We manufacture Butt Weld Concentric Reducers in materials such as ASTM A105, S31803, S32750, Inconel 625 and to standards including ASME B16.9, EN 10253, NACE MR0175/ISO 15156, with full material traceability available on request.
  • Q: Can Butt Weld Concentric Reducers be customized for special project requirements?
  • A: Yes, our engineering team can review drawings, material grades and inspection requirements to provide customized Butt Weld Concentric Reducers solutions for EPC and industrial projects.
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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 Precision Butt Weld Concentric Reducers 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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