Eccentric Reducer Fittings Manufacturer in India
Eccentric Reducer Fittings Manufacturer in India
Sachiya Steel International is a trusted Eccentric Reducer Fittings Manufacturer in India, established in 2005 and backed by over 20+ years of experience in the pipe fitting industry. We supply eccentric reducers in carbon steel, stainless steel, alloy steel, duplex steel, super duplex steel, and nickel alloys. Our product range covers sizes from 1/2 inch to 48 inches, with different schedules, wall thicknesses, and dimensions available according to material, design, and project requirements.
Our eccentric reducer fittings are supplied according to applicable ASME, ASTM, and MSS standards, including ASME B16.9, with material test certificates and inspection reports available as required. Supported by ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications, we focus on quality, material traceability, and dimensional accuracy. With a monthly supply capacity of up to 100 tons and exports to 85+ countries,
What Are Eccentric Reducer Fittings?
Eccentric reducer fittings are butt-weld pipe fittings used to connect pipes of different diameters while keeping one side of the pipe connection level. Unlike concentric reducers, their centerlines are offset, giving the fitting one flat side and one sloping side. This design helps prevent unwanted liquid accumulation or air pockets when installed in the appropriate orientation.
For example, an 8″ × 6″ eccentric reducer connects an 8-inch pipe to a 6-inch pipe. The larger end is listed first, followed by the smaller end. Depending on the piping system, the reducer can be installed with the flat side facing up or down to meet drainage, flow, and installation requirements.
Eccentric reducer fittings are commonly manufactured to ASME B16.9 dimensional requirements and are available in different sizes, wall thicknesses, and material grades. Common materials include carbon steel, stainless steel, alloy steel, duplex steel, and nickel alloys. These fittings are widely used in oil and gas, chemical processing, petrochemical, and power generation industries.
Eccentric Reducer Fittings
High-quality eccentric 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 meet ASTM and ASME standards for industrial piping applications.
Eccentric Reducer Fittings Types We Supply
As an experienced Eccentric Reducer Fittings Manufacturer, we supply different reducer designs, manufacturing types, and material grades to meet industrial piping requirements. Our range supports applications that require specific pipe alignment, wall thicknesses, pressure ratings, and operating conditions.
- Flat on Top (FOT) Eccentric Reducers: Designed with a flat upper surface to help limit air pockets in suitably designed horizontal liquid piping and pump suction lines.
- Flat on Bottom (FOB) Eccentric Reducers: Feature a flat lower surface to support drainage and maintain bottom-of-pipe alignment.
- Flat on Side (FOS) Eccentric Reducers: Used in piping layouts that require a lateral offset on one side.
- Seamless Eccentric Reducers: Manufactured from seamless pipe or suitable seamless starting material for applications with demanding pressure and temperature requirements.
- Welded Eccentric Reducers: Produced using welded construction where permitted by the applicable specification and project requirements.
- Heavy-Wall Eccentric Reducers: Available in heavier wall thicknesses, including Schedule 80 and XXS, subject to size and manufacturing specifications.
- Stainless Steel Eccentric Reducers: Available in ASTM A403 grades and applicable WP-S, WP-W, and WP-WX product forms for suitable industrial applications.
- Alloy Steel and Low-Temperature Eccentric Reducers: Grades such as WP11, WP22, WP91, and WPL6 are used for high-temperature or low-temperature service, as applicable.
- Duplex and Super Duplex Eccentric Reducers: Suitable for applications requiring high strength and corrosion resistance, including selected offshore and seawater systems.
- Different-Wall Eccentric Reducers: Designed to accommodate different wall thicknesses or pipe schedules at the two ends, subject to engineering requirements.
- Eccentric Swage Nipples: Compact size-transition fittings for small-bore piping, supplied according to applicable specifications.
We offer eccentric reducer solutions in different sizes, materials, and configurations, with product selection based on piping design, applicable standards, and operating conditions.
Why Choose Eccentric Reducer Fittings?
Eccentric reducer fittings are suitable for piping systems where pipes of different diameters need to connect without creating an unwanted high or low point in the line. Their offset design keeps one side of the fitting flat, helping engineers manage liquid drainage, air accumulation, and pipe alignment according to the system layout. They are commonly used in industrial pipelines where flow conditions and installation orientation matter.
- Reduced Liquid Accumulation: A flat-bottom installation can help prevent liquid from collecting at the pipe transition in suitable applications.
- Air Pocket Control: A flat-top installation can help limit air accumulation in selected liquid piping systems.
- Flexible Installation: The flat side can face upward or downward depending on piping design requirements.
- Reliable Pipe Connections: Butt-weld ends provide a permanent connection when properly fitted and welded.
- Multiple Material Options: Available in carbon steel, stainless steel, alloy steel, duplex steel, and nickel alloys.
- Suitable for Industrial Service: Used in oil and gas, petrochemical, chemical processing, water treatment, and power generation systems.
Selecting the correct eccentric reducer depends on pipe sizes, material grade, operating pressure, temperature, and installation orientation. Matching these factors to the piping design helps support efficient drainage and dependable system performance.
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
→
Eccentric Reducer Fittings
→
Swage Reducer Fittings
→
Threaded Reducer Fittings
→
Socket Weld Reducer Fittings
→
Butt Weld Reducer Fittings
→Get Certified Eccentric Reducer Fittings at Competitive Factory Prices
Eccentric Reducer Fittings Specifications
| Property | Specification |
|---|---|
| Product Name | Eccentric Reducer Fittings |
| Types | FOT, FOB, FOS, 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 |
| Offset | Half the difference between the large OD and the small OD |
| 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, orientation (FOT, FOB or FOS), wall on each end, grade and standard (for example: Eccentric Reducer 8" × 6", FOT, Sch 40, A234 WPB, ASME B16.9) |
| Custom Work | Special size pairs, walls, grades and lengths |
Eccentric 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.
Eccentric 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 |
Eccentric Reducer Fittings Size Chart
| Large × Small | Usual Orientation | Where This Eccentric Reducer Goes |
|---|---|---|
| 2" × 1" | FOT | Small pump suction and dosing lines |
| 3" × 2" | FOT | Utility pump suction lines |
| 4" × 3" | FOT | Fire water and fuel pump suction |
| 4" × 2" | FOB | Drain and condensate lines |
| 6" × 4" | FOT | Process pump suction lines |
| 6" × 3" | FOB | Steam line condensate drains |
| 8" × 6" | FOB | Pipe rack step-downs |
| 10" × 8" | FOT | Large pump suction lines |
| 10" × 6" | FOB | Rack lines and heat exchanger feeds |
| 12" × 8" | FOB | Cooling water rack step-downs |
| 14" × 10" | FOB | Refinery rack transitions |
| 16" × 12" | FOT | Main pump suction lines |
| 20" × 16" | FOB | Water transmission transitions |
| 24" × 20" | FOB | Pipeline and large rack transitions |
Eccentric 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. The offset is half the difference between the large and small outside diameters. All dimensions are in mm.
| Large × Small | Large OD | Small OD | Offset | Overall Length (H) |
|---|---|---|---|---|
| 2" × 1" | 60.3 | 33.4 | 13.5 | 76 |
| 3" × 2" | 88.9 | 60.3 | 14.3 | 89 |
| 4" × 3" | 114.3 | 88.9 | 12.7 | 102 |
| 4" × 2" | 114.3 | 60.3 | 27.0 | 102 |
| 6" × 4" | 168.3 | 114.3 | 27.0 | 140 |
| 6" × 3" | 168.3 | 88.9 | 39.7 | 140 |
| 8" × 6" | 219.1 | 168.3 | 25.4 | 152 |
| 8" × 4" | 219.1 | 114.3 | 52.4 | 152 |
| 10" × 8" | 273.1 | 219.1 | 27.0 | 178 |
| 10" × 6" | 273.1 | 168.3 | 52.4 | 178 |
| 12" × 8" | 323.9 | 219.1 | 52.4 | 203 |
| 12" × 6" | 323.9 | 168.3 | 77.8 | 203 |
| 14" × 10" | 355.6 | 273.1 | 41.3 | 330 |
| 16" × 12" | 406.4 | 323.9 | 41.3 | 356 |
| 20" × 16" | 508.0 | 406.4 | 50.8 | 508 |
| 24" × 20" | 609.6 | 508.0 | 50.8 | 508 |
For other size pairs, we cut the reducer to your drawing. Wall thickness follows the schedule of each connecting pipe, so we mark both end walls on the order.
Eccentric Reducer Fittings Grades We Supply
As a reliable Eccentric Reducer Fittings Supplier, we offer a range of material grades to meet the pressure, temperature, corrosion resistance, and flow requirements of industrial piping systems. Our selection includes carbon steel, alloy steel, stainless steel, duplex steel, super duplex steel, and nickel alloys for different operating environments.
- Carbon Steel Grades: ASTM A234 WPB is widely used in oil, gas, water, and steam pipelines. ASTM A420 WPL6 is suitable for specified low-temperature applications, while high-yield grades under MSS SP-75 serve applicable pipeline requirements.
- Alloy Steel Grades: ASTM A234 WP11, WP22, and WP91 are used in high-temperature applications, including power plants, boilers, and refineries.
- Stainless Steel Grades: ASTM A403 WP304, WP304L, WP316, WP316L, WP321, and WP347 offer corrosion resistance for chemical processing and other industrial applications.
- Duplex Steel Grades: ASTM A815 UNS S31803 and S32205 provide a combination of strength and corrosion resistance for demanding service conditions.
- Super Duplex Steel Grades: UNS S32750 is suitable for applications involving seawater, chlorides, and challenging offshore environments.
- Nickel Alloy Grades: Inconel, Monel, and Hastelloy grades are available for specialized applications involving aggressive chemicals, elevated temperatures, or severe corrosion conditions.
We supply eccentric reducer fittings according to applicable material specifications and project requirements. Grade selection depends on the process fluid, operating pressure, temperature, and required corrosion resistance.
Eccentric Reducer Fittings Standards and Certifications
Every eccentric reducer must match the dimensional and material requirements of its intended piping system. Our manufacturing and supply range covers eccentric reducers designed to ASME B16.9, with butt-weld ends prepared to ASME B16.25 specifications. We work with carbon and alloy steel grades under ASTM A234, stainless steel under ASTM A403, low-temperature steel under ASTM A420, duplex steel under ASTM A815, and nickel alloys under ASTM B366, depending on the grade and order specifications. These standards help define the product dimensions, material requirements, and connection details needed for industrial applications.
As an Eccentric Reducer Fittings Supplier in India, we provide supporting quality documents to help customers verify the products supplied against their purchase orders. Available documentation includes EN 10204 3.1 Material Test Certificates, chemical composition and mechanical test reports, dimensional inspection records, and Positive Material Identification (PMI) reports, as applicable. Our stated management system certifications include ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018. Where projects require additional verification, EN 10204 3.2 certification or third-party inspection can be coordinated according to the agreed specifications.
Eccentric Reducer Fittings Applications
- Pump Suction Lines: Eccentric reducer fittings with the flat side on top let air travel to the pump instead of gathering in a pocket, which protects against cavitation.
- Pipe Racks: Flat-on-bottom reducers keep the bottom of the pipe at one level, so supports stay at the same height along the rack.
- Drain and Condensate Lines: The flat bottom lets liquid and condensate run out freely, so no pool forms at the reduction.
- Steam Lines: Flat-on-bottom eccentric reducers let condensate drain from horizontal steam headers at a change in size.
- Oil and Gas Pipelines: Eccentric reducers change the line size at metering skids, pump stations and delivery points on horizontal runs.
- Refineries and Petrochemical Plants: Alloy steel eccentric reducers join large process headers to smaller pump and exchanger lines.
- Chemical Processing: Stainless steel 316L and duplex reducers connect large transfer lines to smaller reactors and dosing pumps.
- Pharmaceutical and Food Plants: Polished stainless steel eccentric reducers give smooth, self-draining transitions in hygienic piping.
- Water Treatment and Desalination: Super duplex and 316L reducers join large brine and seawater mains to smaller pumps and treatment units, and many projects source them from an Eccentric Reducer Fittings Supplier in India like us.
- Fire Protection and HVAC: Carbon steel eccentric reducers step down from large mains to pump and coil connections in horizontal plant room piping.
Why Choose Sachiya Steel International as Your Eccentric Reducer Fittings Manufacturer in India?
Established in 2005, Sachiya Steel International brings over 20 years of experience in the pipe fittings industry, serving industrial buyers with manufacturing, supply, and export solutions. We understand that eccentric reducers must match the piping layout, operating conditions, and connection requirements of each project. Our product range includes eccentric reducers in carbon steel, stainless steel, alloy steel, duplex steel, super duplex steel, and nickel alloys for diverse industrial applications.
We offer eccentric reducer fittings in sizes ranging from 1/2 inch to 48 inches, subject to material and manufacturing specifications, with different wall thicknesses, schedules, and dimensions. Our available grades include ASTM A234 WPB, WP11, WP22, WP91, ASTM A403 WP304, WP304L, WP316, WP316L, ASTM A420 WPL6, ASTM A815 UNS S31803, S32205, and S32750, along with selected Inconel, Monel, and Hastelloy grades. Products are supplied to applicable ASME, ASTM, and MSS standards, with material test certificates and inspection reports available according to order requirements.
With a monthly supply capacity of up to 100 tons and exports to 85+ countries, we handle bulk requirements and international project orders. Our ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications support our focus on quality management, environmental management, and occupational health and safety. We serve the oil and gas, petrochemical, chemical processing, power generation, marine, and engineering industries, with attention to material traceability, order specifications, competitive pricing, and dependable delivery.
Countries We Export To
We export eccentric reducer fittings to 85+ countries worldwide, supplying industrial requirements for refineries, power plants, water treatment facilities, and shipyards. As an experienced Eccentric Reducer Fittings Supplier, we serve customers across major international markets, providing a range of material grades, sizes, and specifications to meet diverse piping project requirements.
- 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 suitable export packaging, shipping documents, and material certificates according to order requirements. Third-party inspections and additional quality documentation can also be arranged when specified by the customer.