Concentric Reducer Fittings Manufacturer in India
Concentric Reducer Fittings Manufacturer in India
Sachiya Steel International is a trusted Concentric Reducer Fittings Manufacturer in India, established in 2005 with over 20+ years of experience in manufacturing, supplying, and exporting industrial pipe fittings. We offer concentric reducers in stainless steel, carbon steel, alloy steel, duplex steel, super duplex steel, and nickel alloy grades for piping systems across various industries. Our products connect pipes of different diameters while keeping their centerlines aligned.
We supply concentric reducer fittings in various sizes, wall thicknesses, schedules, and specifications to meet industrial and project requirements. Our products follow applicable ASTM, ASME, and MSS standards, with material test certificates and inspection reports available as required. With a monthly supply capacity of up to 100 tons and exports to 85+ countries, we serve the oil and gas, petrochemical, chemical, power generation, marine, and engineering industries with a focus on quality, competitive pricing, and reliable delivery.
What Are Concentric Reducer Fittings?
Concentric reducer fittings are pipe fittings used to connect two pipes with different diameters while keeping their centerlines aligned. They have a cone-shaped design that gradually reduces the pipe size from a larger diameter to a smaller one. This design supports a smooth transition between pipe sizes and helps maintain consistent flow conditions in industrial piping systems.
Concentric reducers are commonly used in oil and gas, petrochemical, chemical processing, power generation, and water treatment industries. They are available in materials such as stainless steel, carbon steel, alloy steel, duplex steel, and nickel alloys to suit different operating conditions. The right concentric reducer depends on pipe dimensions, pressure ratings, temperature, fluid type, and applicable industry standards. These fittings are commonly installed in piping systems where maintaining a common centerline between connected pipes is important.
Concentric Reducer Fittings
High-quality concentric reducer fittings are available in stainless steel, carbon steel, alloy steel, duplex and nickel alloys, with sizes ranging from 1/2" to 48". Offered in grades such as SS 304, 316, WPB, Duplex 2205 and Inconel 625, these fittings comply with ASTM and ASME standards for industrial piping applications.
Why Choose Concentric Reducer Fittings?
Concentric reducer fittings provide a practical solution for connecting pipes of different diameters while keeping their centerlines aligned. Their tapered design allows a gradual transition between pipe sizes, making them suitable for many industrial piping systems. These fittings are widely used in oil and gas, petrochemical, chemical processing, power generation, and water treatment applications.
Key benefits of concentric reducer fittings include:
- Aligned Pipe Connections: Keep the centerlines of both pipes aligned during size transitions.
- Smooth Size Reduction: Provide a gradual transition from a larger pipe diameter to a smaller one.
- Material Versatility: Available in stainless steel, carbon steel, alloy steel, duplex steel, and nickel alloys.
- Multiple Size Options: Suitable for different pipe diameters, wall thicknesses, and schedules.
- Industrial Durability: The correct material grade helps withstand specified pressure, temperature, and corrosion conditions.
- Wide Application Range: Used in industrial process lines, fluid transport systems, and other piping installations.
Choosing the right concentric reducer fittings helps ensure compatible pipe connections and reliable system performance when the design, material, and operating conditions are properly matched.
Concentric Reducer Fittings Types We Supply
As an experienced concentric reducer fittings manufacturer, we supply a range of reducer fittings in different materials, sizes, and specifications to meet industrial piping requirements. Our products support applications that require a gradual transition between larger and smaller pipe diameters while keeping both pipe centerlines aligned.
- Stainless Steel Concentric Reducers: Suitable for applications requiring corrosion resistance, durability, and reliable performance.
- Carbon Steel Concentric Reducers: Commonly used in oil and gas, water, steam, and general industrial piping systems.
- Alloy Steel Concentric Reducers: Designed for applications involving high temperatures and demanding operating conditions.
- Duplex Steel Concentric Reducers: Offer high strength and corrosion resistance for suitable industrial and offshore environments.
- Super Duplex Concentric Reducers: Used in demanding applications where enhanced resistance to corrosion and chloride exposure is required.
- Nickel Alloy Concentric Reducers: Available for specialized applications involving aggressive chemicals and challenging operating environments.
We supply concentric reducer fittings in various dimensions, wall thicknesses, schedules, and material grades according to applicable ASTM, ASME, and MSS standards and project specifications. Our range supports the requirements of the oil and gas, petrochemical, chemical processing, power generation, marine, and engineering industries.
Types of Reducers Fittings
Explore our range of industrial reducer fittings, including concentric reducers, eccentric reducers, swage reducers, threaded reducers, socket weld reducers and butt weld reducers for diverse piping applications.
Concentric Reducer Fittings
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Eccentric Reducer Fittings
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Swage Reducer Fittings
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Threaded Reducer Fittings
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Socket Weld Reducer Fittings
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Butt Weld Reducer Fittings
→Get Certified Concentric Reducer Fittings at Competitive Factory Prices
Concentric Reducer Fittings Specifications
| Property | Specification |
|---|---|
| Product Name | Concentric Reducer Fittings |
| Types | Seamless, welded, heavy wall, different wall, swage nipple |
| Size Range (Large End) | 1/2" to 24" NB |
| Size Pairs | Any ASME B16.9 combination and special pairs on request |
| Wall Thickness | Sch 5S, 10S, 10, 20, 30, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS, with different walls on each end on request |
| Materials | Carbon steel, low temperature carbon steel, alloy steel, stainless steel, duplex, super duplex, nickel alloys |
| Dimension Standards | ASME B16.9, MSS SP-43, MSS SP-75, MSS SP-95 |
| Material Standards | ASTM A234, A403, A420, A815, B366 |
| End Type | Bevel end per ASME B16.25 |
| Construction | Seamless and welded |
| Surface Finish | Black, oil coated, pickled, sand blasted, polished |
| Heat Treatment | Normalising, stress relieving, solution annealing |
| Testing | PMI, hardness, dimensional, hydrostatic, NDT |
| Certification | EN 10204 3.1, 3.2 on request |
| How to Order | Large size × small size, wall on each end, grade and standard (for example: Concentric Reducer 8" × 6", Sch 40, A234 WPB, ASME B16.9) |
| Custom Work | Special size pairs, walls, grades and lengths |
Concentric Reducer Fittings Chemical Composition
Values are in %, maximum unless a range is shown.
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| A234 WPB | 0.30 | 0.29–1.06 | 0.10 min | 0.050 | 0.058 | 0.40 | 0.40 | 0.15 |
| A403 WP304 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0–20.0 | 8.0–11.0 | – |
| A403 WP304L | 0.035 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0–20.0 | 8.0–13.0 | – |
| A403 WP316 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 |
| A403 WP316L | 0.035 | 2.00 | 1.00 | 0.045 | 0.030 | 16.0–18.0 | 10.0–15.0 | 2.0–3.0 |
| A403 WP321 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 17.0–19.0 | 9.0–12.0 | – |
| A815 UNS S31803 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 21.0–23.0 | 4.5–6.5 | 2.5–3.5 |
WP321 holds titanium at 5 times the carbon content (minimum). Duplex S31803 holds 0.08–0.20% nitrogen.
Concentric Reducer Fittings Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| A234 WPB | 415–585 | 240 min | 22 min |
| A420 WPL6 | 415–585 | 240 min | 22 min |
| A234 WP22 Class 1 | 415–585 | 205 min | 22 min |
| A403 WP304 / WP316 / WP321 | 515 min | 205 min | 28 min |
| A403 WP304L / WP316L | 485 min | 170 min | 28 min |
| A815 UNS S31803 | 620 min | 450 min | 25 min |
Concentric Reducer Fittings Size Chart
| Large × Small | Small End as % of Large | Where This Concentric Reducer Goes |
|---|---|---|
| 2" × 1" | 50% | Instrument and dosing line transitions |
| 3" × 2" | 67% | Utility and cooling water lines |
| 4" × 3" | 75% | Fire water and fuel lines |
| 4" × 2" | 50% | Pump and valve connections |
| 6" × 4" | 67% | Pump discharge lines |
| 6" × 3" | 50% | Heat exchanger nozzles |
| 8" × 6" | 75% | Process header step-downs |
| 10" × 8" | 80% | Plant header transitions |
| 10" × 6" | 60% | Vessel and tank nozzles |
| 12" × 8" | 67% | Cooling circuit step-downs |
| 14" × 10" | 71% | Refinery header transitions |
| 16" × 12" | 75% | Main line step-downs |
| 20" × 16" | 80% | Water transmission transitions |
| 24" × 20" | 83% | Pipeline and large header transitions |
Concentric Reducer Fittings Dimension Chart (ASME B16.9)
Dimension H is the overall length from the large end to the small end, and ASME B16.9 sets it by the large end size. All dimensions are in mm.
| Large NPS | Large OD | Overall Length (H) | Common Small End Sizes |
|---|---|---|---|
| 1" | 33.4 | 51 | 3/4", 1/2" |
| 1 1/2" | 48.3 | 64 | 1 1/4", 1", 3/4" |
| 2" | 60.3 | 76 | 1 1/2", 1 1/4", 1" |
| 3" | 88.9 | 89 | 2 1/2", 2", 1 1/2" |
| 4" | 114.3 | 102 | 3 1/2", 3", 2 1/2", 2", 1 1/2" |
| 5" | 141.3 | 127 | 4", 3 1/2", 3", 2 1/2", 2" |
| 6" | 168.3 | 140 | 5", 4", 3 1/2", 3", 2 1/2" |
| 8" | 219.1 | 152 | 6", 5", 4", 3 1/2" |
| 10" | 273.1 | 178 | 8", 6", 5", 4" |
| 12" | 323.9 | 203 | 10", 8", 6", 5" |
| 14" | 355.6 | 330 | 12", 10", 8", 6" |
| 16" | 406.4 | 356 | 14", 12", 10", 8" |
| 18" | 457.2 | 381 | 16", 14", 12", 10" |
| 20" | 508.0 | 508 | 18", 16", 14", 12" |
| 24" | 609.6 | 508 | 20", 18", 16", 14" |
Wall thickness follows the schedule of each connecting pipe, so we mark both end walls on the order. For other size pairs and for special lengths, we cut the reducer to your drawing.
Concentric Reducer Fittings Grades We Supply
As a reliable concentric reducer fittings supplier, we offer material grades to suit different fluids, operating temperatures, pressure conditions, and industrial applications. Selecting the right grade helps ensure that concentric reducers meet the performance and durability requirements of each piping system.
- Carbon Steel Grades: ASTM A234 WPB is widely used in oil, water, steam, and gas pipelines. We also supply high-yield pipeline fitting grades under MSS SP-75 and ASTM A420 WPL6 for low-temperature applications.
- Alloy Steel Grades: ASTM A234 WP11, WP22, and WP91 are suitable for high-temperature piping systems in refineries, power plants, and industrial processing facilities.
- Stainless Steel Grades: ASTM A403 WP304, WP304L, WP316, WP316L, WP321, and WP347 offer corrosion resistance for chemical processing, food processing, and other industrial applications.
- Duplex and Super Duplex Grades: ASTM A815 UNS S31803, S32205, and S32750 are used in applications requiring high strength and resistance to corrosion, including seawater handling and offshore operations.
- Nickel Alloy Grades: Inconel, Monel, and Hastelloy are available for specialized applications involving aggressive chemicals, elevated temperatures, and demanding service conditions.
We supply concentric reducer fittings according to applicable material specifications and project requirements, helping customers select suitable grades based on operating conditions and industry standards.
Concentric Reducer Fittings Standards and Certifications
Concentric reducer fittings are supplied according to applicable industry standards to meet dimensional, material, and technical requirements for industrial piping systems. Common standards include ASME B16.9 for butt-weld concentric reducers, MSS SP-43 for light-wall stainless steel fittings, and MSS SP-75 for high-yield pipeline fittings. Weld-end preparation follows ASME B16.25, while material specifications include ASTM A234 for carbon and alloy steel, A403 for stainless steel, A420 for low-temperature steel, A815 for duplex steel, and B366 for nickel alloy fittings.
As an experienced Concentric Reducer Fittings Supplier in India, we support quality and compliance requirements through ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications, along with applicable PED 2014/68/EU requirements for pressure equipment. Material documentation can include EN 10204 3.1 Mill Test Certificates, chemical and mechanical test reports, dimensional inspection reports, and Positive Material Identification (PMI) reports. EN 10204 3.2 certification and third-party inspections can also be arranged according to project specifications and customer requirements.
Concentric Reducer Fittings Applications
- Vertical Piping and Risers: Concentric reducer fittings step the pipe down in vertical lines, where no pocket of air or liquid can collect on one side.
- Pump and Compressor Discharge Lines: The symmetrical cone gives an even flow profile on the discharge side of pumps and compressors.
- Oil and Gas Pipelines: Concentric reducers change the line size at metering skids, valve stations and delivery points.
- Refineries and Petrochemical Plants: Alloy steel reducers join large process headers to smaller equipment nozzles on one centre line.
- Power Plants: WP22 and WP91 concentric reducers carry steam and boiler feed through changes in line size at high temperature.
- Chemical Processing: Stainless steel 316L and duplex reducers connect large transfer lines to smaller reactors and dosing units.
- Pharmaceutical and Food Plants: Polished stainless steel concentric reducers give smooth, easy-to-clean transitions in hygienic piping.
- Water Treatment and Desalination: Super duplex and 316L reducers join large brine and seawater mains to smaller treatment units, and many projects source them from a Concentric Reducer Fittings Supplier in India like us.
- Heat Exchanger and Vessel Nozzles: Concentric reducers match the pipe size to the nozzle bore on the same axis.
- Fire Protection and HVAC: Carbon steel concentric reducers step down from large risers and chilled water mains to branch connections.
Why Choose Sachiya Steel International as Your Concentric Reducer Fittings Manufacturer in India?
Choosing the right concentric reducer fittings manufacturer is important for maintaining reliable connections between pipes of different diameters. Established in 2005, Sachiya Steel International brings over 20+ years of industry experience in supplying pipe fittings for industrial piping systems. We understand that every project has different technical requirements, so we offer concentric reducers in various sizes, wall thicknesses, schedules, and material grades to suit specific applications.
Our product range includes carbon steel ASTM A234 WPB, alloy steel WP11, WP22 and WP91, stainless steel 304, 304L, 316 and 316L, duplex steel UNS S31803 and S32205, super duplex UNS S32750, and selected nickel alloys such as Inconel, Monel, and Hastelloy. We supply concentric reducers in sizes ranging from 1/2 inch to 48 inches, subject to material, design, and manufacturing requirements. Products are supplied according to applicable ASTM, ASME, and MSS standards, with material test certificates and inspection documentation available as required.
With a monthly supply capacity of up to 100 tons and an export network covering 85+ countries, we support bulk orders, international shipments, and project-specific requirements. Our concentric reducer fittings serve the oil and gas, petrochemical, chemical processing, power generation, marine, and engineering industries. We focus on material traceability, dimensional accuracy, competitive pricing, and dependable delivery to help customers source fittings that meet their technical specifications and project schedules.
Countries We Export To
We export concentric reducer fittings to 85+ countries worldwide, serving customers in the oil and gas, petrochemical, chemical processing, power generation, marine, and engineering industries. Our export network supports international buyers with products that meet applicable material specifications, dimensional requirements, and project standards.
- North America: USA, Canada, Mexico
- Europe: UK, Germany, France, Italy, the Netherlands, Spain
- Middle East: UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain
- Asia-Pacific: Singapore, Malaysia, Indonesia, Thailand, Vietnam, Australia
- Africa: South Africa, Nigeria, Egypt, Kenya
- South America: Brazil, Chile, Peru
We support international shipments with export-ready packaging suitable for sea freight and the necessary shipping and customs documentation. Material Test Certificates to EN 10204 3.1, EN 10204 3.2 certification, and third-party inspections can be arranged according to project specifications and customer requirements. Our focus is on providing reliable export coordination and consistent product documentation for concentric reducer fittings supplied to global markets.