Repsol Steel LLP is a trusted pipe reducer supplier for buyers across the USA, Europe, Africa, Mexico, and Oman. We supply a comprehensive range of pipe reducers — including concentric reducers and eccentric reducers in butt weld configuration — in stainless steel, carbon steel, alloy steel, duplex, and exotic alloys for changing pipe size in high-pressure and high-temperature piping systems.
With over 25 years of combined industry experience and a proven export network, we serve EPC contractors, procurement teams, maintenance engineers, and fabrication units worldwide. Every pipe reducer we supply complies with ASME B16.9, ASTM A234, ASTM A403, ASTM A420, and EN 10253 standards, with full material traceability, dimensional inspection reports, and documentation that meets the requirements of projects in the USA, Europe, Africa, Mexico, and Oman.
Whether you require standard SS316 concentric reducers for a petrochemical plant in Europe, A234 WPB eccentric reducers for a refinery in the USA, or A234 WP11 high-temperature reducers for a power plant in Africa or Oman — Repsol Steel LLP delivers the right pipe reducer solution, on time, with complete export documentation.
A complete pipe reducer portfolio covering concentric and eccentric reducers in butt weld configuration — manufactured in stainless steel, carbon steel, alloy steel, duplex, and exotic alloys for changing pipe size in high-pressure and high-temperature piping systems.
Concentric reducers with both ends on the same axis. Used in vertical piping and horizontal piping where the centerline remains the same. The most common reducer type in industrial piping.
Compliance: ASME B16.9, ASTM A234, A403
Materials: SS, CS, Alloy Steel
Size Range: ½" to 48"
Eccentric reducers with offset centerlines. Used in horizontal piping where the bottom (flat-bottom) or top (flat-top) must remain level for drainage or air pocket prevention.
Compliance: ASME B16.9, ASTM A234, A403
Materials: SS, CS, Alloy Steel
Size Range: ½" to 48"
Stainless steel reducers (SS304, SS316, SS321, SS347, Duplex) for corrosive and high-temperature service. Available in concentric and eccentric configurations.
Compliance: ASME B16.9, ASTM A403
Materials: SS304, SS316, SS321, Duplex
Size Range: ½" to 48"
Carbon steel reducers (A234 WPB) for general industrial piping. Available in concentric and eccentric configurations per ASME B16.9.
Compliance: ASME B16.9, ASTM A234 WPB
Materials: WPB, WPL6
Size Range: ½" to 48"
Alloy steel reducers (A234 WP11, WP22, WP5, WP9) for high-temperature and high-pressure service. Available in concentric and eccentric configurations.
Compliance: ASME B16.9, ASTM A234
Materials: WP11, WP22, WP5, WP9
Size Range: ½" to 48"
Exotic alloy reducers (Monel, Inconel, Hastelloy, Nickel 200) for highly corrosive, high-temperature, or specialty applications where standard materials are not suitable.
Compliance: ASME B16.9, ASTM B366
Materials: Monel, Inconel, Hastelloy
Size Range: ½" to 24"
Pipe reducers are supplied in different materials and grades to suit specific pressure, temperature, and media conditions. The material grade determines the mechanical strength, corrosion resistance, and temperature capability of the reducer. We supply pipe reducers in the following materials and grades:
All pipe reducers we supply are accompanied by Material Test Certificates (MTC) confirming the exact grade, mechanical properties, and heat number — ensuring full traceability and compliance with international project specifications.
| Parameter | Specification |
|---|---|
| Reducer Types | Concentric Reducers, Eccentric Reducers (Flat-Bottom, Flat-Top) |
| Materials | Stainless Steel (SS304, SS316, SS321), Carbon Steel (WPB, WPL6), Alloy Steel (WP11, WP22, WP5, WP9), Duplex (S31803, S32750), Exotic Alloys (Monel, Inconel, Hastelloy) |
| Size Range | ½" to 48" standard; larger sizes available on request |
| Reduction Ratios | Single-stage and multi-stage reductions per project specifications |
| Schedule / Wall Thickness | SCH 10, 20, 40, 80, 120, 160, XXS — per project specifications |
| End Connections | Butt Weld (BW) only |
| Standards Compliance | ASME B16.9; ASTM A234, A403, A420, A815; EN 10253-2, EN 10253-4; EN 10204 |
| Export Documentation | Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, MTC (EN 10204 3.1) |
| Inspection Options | Third-party inspection (SGS, BV, TUV, Intertek) available on request |
| Additional Documentation | Hardness test reports, NACE compliance, H2S service documentation available on request |
Correct pipe reducer selection is critical to ensuring a leak-free piping system and long-term operational safety. The reducer type, material grade, and size must be matched to the operating pressure, temperature, and media. Our technical team recommends evaluating four key factors before finalizing a pipe reducer:
If you are unsure which pipe reducer specification best suits your application, our technical team is available to review your piping drawings, process data, and project specifications — and recommend the most suitable pipe reducer solution.
We specialize in pipe reducer supply — offering concentric and eccentric reducers in SS, CS, alloy steel, duplex, and exotic alloys. All reducers are manufactured to ASME, ASTM, and EN standards.
We supply pipe reducers from ½" to 48" as standard, with SCH 10 to XXS wall thicknesses and custom sizes on request. Larger sizes and multi-stage reductions are available per project specifications.
Every pipe reducer batch is backed by Material Test Certificates (MTC) and dimensional inspection reports, and can be supplied with NACE compliance documentation, hardness test reports, and third-party certification on request.
Non-standard sizes, reduction ratios, materials, and pipe reducer configurations are manufactured according to drawings, piping specifications, and project requirements — with quick turnaround times.
We supply pipe reducers to clients in the USA, Europe, Africa, Mexico, and Oman — with packaging, documentation, and compliance structured for international procurement.
Our experienced technical team assists with pipe reducer selection, material and size recommendations, and installation guidance. Post-supply support includes documentation follow-up and replacement coordination.
Repsol Steel LLP supplies pipe reducers to a wide range of process industries across USA, Europe, Africa, Mexico, and Oman — where reliable pipe size transitions are essential.
Pipe reducers supplied for wellhead piping, pipeline systems, process piping, and high-pressure transfer lines in upstream, midstream, and downstream operations.
Pipe reducers supplied for reactors, heat exchangers, process piping, and storage systems handling hydrocarbons at high pressures and temperatures.
WP11, WP22, and SS321 pipe reducers supplied for high-temperature and high-pressure process piping in crude distillation, catalytic cracking, and hydroprocessing units.
High-temperature WP11, WP22, and WP91 pipe reducers supplied for boilers, steam systems, turbine connections, and high-pressure auxiliary piping in thermal and nuclear power plants.
SS316 and SS904L pipe reducers supplied for aggressive chemical and corrosive media applications in reactors, storage tanks, and process equipment.
Duplex and Super Duplex pipe reducers supplied for subsea wellhead equipment, manifolds, and flowlines per API 17D — with superior resistance to seawater and chloride stress corrosion.
Repsol Steel LLP is recognized as a reliable pipe reducer supplier for international procurement teams, EPC contractors, and maintenance projects. Our export documentation, packaging, and standard compliance are structured for smooth cross-border supply to buyers in the USA, Europe, Africa, Mexico, and Oman — ensuring your pipe reducers arrive on time, in specification, and ready for installation.
USA: Pipe reducer supply for Oil & Gas, petrochemical & power projects
Europe: Pipe reducers for chemical, refinery & process industries
Africa: Pipe reducers for refinery, petrochemical & power projects
Mexico: Pipe reducer supply for chemical plants & refinery operations
Oman: Pipe reducers for Oil & Gas, petrochemical & power projects
All pipe reducers are supplied with material certificates, dimensional inspection reports, and third-party certification as required by project specifications.
A pipe reducer is a pipe fitting used to connect two pipes of different sizes. It has a large end and a small end, allowing the piping system to transition from a larger diameter to a smaller diameter (or vice versa). Reducers are available in concentric and eccentric configurations per ASME B16.9.
A concentric reducer has both ends on the same axis (centerline remains the same). An eccentric reducer has offset centerlines, allowing the bottom (flat-bottom) or top (flat-top) to remain level. Eccentric reducers are used in horizontal piping for drainage or air pocket prevention.
We supply pipe reducers in ASTM A234 WPB, WP11, WP22, WP5, WP9 (carbon & alloy steel); ASTM A403 WP304, WP316, WP321 (stainless steel); ASTM A420 WPL6, WPL3 (low-temp); ASTM A815 (duplex); and exotic alloys including Monel, Inconel, and Hastelloy.
We supply pipe reducers primarily to the USA, Europe, Africa, Mexico, and Oman, serving Oil & Gas, petrochemical, refinery, power, and chemical processing projects in these regions.
Yes. We offer custom sizes, reduction ratios, materials, and pipe reducer configurations based on drawings, piping specifications, and project requirements — with quick turnaround times for export orders.
Send us your pipe reducer specifications, size requirements, or drawings. Our export team will respond within 24 hours with a tailored quotation.
Repsol Steel LLP is a leading manufacturer and stockholder of high-quality piping products, serving the Oil, Gas, Petrochemical, and Nuclear industries with reliable engineering solutions.
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