Buttweld Fittings
Buttweld Eccentric Reducer
Buttweld eccentric reducers to ASME B16.9 with an offset centreline for horizontal lines, in stainless, carbon and duplex steel.
Specification
At a glance
- Dimensional standard
- ASME B16.9
- Types & ends
- Eccentric (offset centreline) · Butt weld (bevelled) ends
- Grade
- IS 1239 Part 2 / IS 2062 Gr. A
- Also offered in
- Stainless steel
- Carbon steel
- Duplex stainless steel
Dimension tables
2 classes · dimensions, weights, Excel
As published by Fortune Fittings Private Limited. Grade and availability are confirmed with each enquiry; confirm the governing standard, size and grade when ordering. Spotted a mistake? Please contact us.
Overview
Product overview
When it comes to efficient piping systems, Buttweld Eccentric Reducer play a pivotal role in seamlessly reducing pipe sizes while ensuring optimal flow rates.
Eccentric Reducers are specifically designed to connect pipes of different sizes that aren’t in a straight line. Unlike concentric reducers, the reduction in diameter is achieved in a way that the centerline of the two pipes isn’t aligned. This unique design makes them ideal for horizontal piping systems, where a sudden reduction in diameter is necessary to prevent fluid accumulation.
The dimensions of our ASME B16.9 Buttweld Eccentric Reducers are meticulously calculated to ensure a precise fit and maintain optimal flow rates in the piping system.
At Fortune Fittings Private Limited, we understand the importance of accuracy, reliability, and efficiency in piping systems. With our Buttweld Eccentric Reducers, you can trust in seamless performance and hassle-free installation, allowing you to focus on your project’s success.
What is a Buttweld Eccentric Reducer?
A Buttweld Eccentric Reducer is a type of pipe fitting used in piping systems to connect pipes of different diameters that are not in a straight line. Unlike concentric reducers, where the reduction in diameter occurs uniformly along the centerline, eccentric reducers feature an off-center design. This results in one side of the reducer having a larger diameter than the other, creating a gradual or sudden reduction in pipe size.
Where it is used
Applications and service
Typical duty across the process industries we supply.
- Chemical ProcessingEccentric reducers are utilized in chemical plants for directing the flow of corrosive chemicals, acids, and solvents between different processing units, ensuring efficient and safe operations.
- Petrochemical IndustryIn petrochemical refineries and processing plants, eccentric reducers are employed to connect pipes of different sizes, facilitating the transfer of crude oil, refined petroleum products, and gases with varying pressure and temperature requirements.
- Oil and Gas SectorEccentric reducers play a crucial role in oil and gas pipelines for managing fluid flow and pressure, particularly during the transportation of crude oil, natural gas, and other hydrocarbons over long distances.
- Water Treatment FacilitiesThese reducers are used in water treatment plants to regulate the flow of treated water, chemicals, and wastewater between different treatment processes, ensuring optimal purification and filtration.
- HVAC SystemsEccentric reducers are integrated into heating, ventilation, and air conditioning (HVAC) systems to control the flow of air, refrigerants, and other fluids between different components, optimizing temperature regulation and energy efficiency.
- Power GenerationIn power plants, eccentric reducers are employed in piping systems to manage the flow of water, steam, and other fluids in boilers, turbines, and cooling systems, ensuring reliable and efficient power generation.
Engineering
Technical notes
How the component behaves in the line, and the details to settle before an order is placed.
How it behaves in the line
- Pump suction: always eccentric reducer, flat-side up; NPSH-critical
- Offset between inlet and outlet centrelines = (D₁ - D₂) / 2
- If a concentric reducer is used at pump suction, vapour lock risk is high
- Weld distortion during installation can rotate flat side: verify with spirit level
Confirm when ordering
- Critical: always confirm 'Eccentric'; do not allow concentric substitution at pump suction
- State orientation preference if ordering as part of a pump skid
Dimensions, wall thicknesses and pressure classes are in the dimension tables; the governing standards are summarised on the standards reference.
Related
Specified alongside this
Components that commonly appear with it on the same run, and the rest of the buttweld fittings range.
Used on the same lineConcentric ReducerButtweld concentric reducers to ASME B16.9 for an in-line size change on a common centreline, in carbon, stainless and alloy steel.View specifications
Used on the same lineReducing TeeButtweld reducing tees to ASME B16.9 with a branch smaller than the run, in carbon, stainless and alloy steel, with mild steel size tables.View specifications
Used on the same line90° Elbow (LR & SR)Buttweld 90° elbows in long and short radius to ASME B16.9, in carbon, stainless and alloy steel, with dimension tables by material and class.View specifications
Used on the same lineEqual TeeButtweld equal (straight) tees to ASME B16.9 for three pipes of one size, in carbon, stainless and alloy steel, with dimension tables by class.View specifications
Same range45° ElbowLong-radius 45° buttweld elbows to ASME B16.9, 1/2″ to 72″, Schedule 10 to XXS, in carbon, stainless and alloy steel.View specifications
Same range180° Return Bend (LR & SR)180° buttweld return bends in long and short radius to ASME B16.9, in stainless, carbon and alloy steel, with dimension tables by material.View specifications
Where it is specified
Industries using this component
Sectors that commonly specify the Eccentric Reducer, and what else they take from us.
Enquiries
Need a quotation for the Eccentric Reducer?
Send sizes, grades, quantities and the standard the component is specified to, and a sales engineer will come back with availability and pricing. Dimensions and schedules are in the Technical Catalog.