Buttweld Fittings
180° Buttweld Return Bend: Long & Short Radius
180° buttweld return bends in long and short radius to ASME B16.9, in stainless, carbon and alloy steel, with dimension tables by material.
Specification
At a glance
- Dimensional standard
- ASME B16.9
- Types & ends
- Long radius · Short radius · Butt weld (bevelled) ends
- Grades
- Mild SteelIS 1239 Part 2 / IS 2062 Gr. A
- Carbon SteelASTM A234 WPB / ASTM A420 WPL6
- Stainless SteelASTM A403 WP304/304L/316/316L
- Also offered in
- Stainless steel
- Carbon steel
- Alloy steel
- Duplex stainless steel
- Nickel alloys
Dimension tables
6 classes · dimensions, weights, Excel
Stainless Steel
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
Our Buttweld 180 Degree Elbows, conforming to ASME B16.9 standards, stand as vital components in pipe systems, facilitating a seamless 180-degree directional change. Crafted with precision, our elbows minimize turbulence, reducing pressure drop and fluid friction within the system.
We offer a comprehensive range of Buttweld 180 Degree Elbows, available in various dimensions and two types: Long Radius (LR) and Short Radius (SR) Elbow. The LR variant ensures smoother fluid flow and reduced friction loss due to its longer radius, while the SR variant offers a compact design, optimizing space utilization.
At Fortune Fittings Private Limited, we prioritize versatility, producing elbows in sizes ranging from small to large diameters and offering different wall thickness options to suit diverse applications. Our expertise extends to exhaust elbows, ideal for exhaust systems, enhancing performance and reducing noise.
What is a Buttweld 180 Degree Elbow?
A Buttweld 180 Degree Elbow is a pipe fitting used to change the direction of flow by 180 degrees in piping systems. It’s welded to the ends of pipes using the buttweld method for a secure connection. Available in Long Radius (LR) and Short Radius (SR) variants, they’re crucial for fluid or gas flow redirection in industries like oil and gas, petrochemical, and HVAC systems.
Where it is used
Applications and service
Typical duty across the process industries we supply.
- Piping SystemsUsed to redirect fluid or gas flow by 180 degrees in plumbing, HVAC, and industrial piping systems.
- Chemical ProcessingEssential for directing fluid flow in chemical plants, refineries, and petrochemical facilities, where precise flow control is crucial for process efficiency.
- Oil and GasIntegral in oil and gas pipelines for routing fluids around obstacles, changing pipeline direction, and connecting pipeline sections.
- HVAC SystemsEmployed in heating and cooling systems to redirect airflow efficiently, ensuring optimal temperature control and energy efficiency.
- Water TreatmentUtilized in water treatment plants for redirecting water flow during various treatment processes, such as filtration and disinfection.
- Marine ApplicationsInstalled in shipbuilding for piping systems aboard vessels, facilitating the efficient flow of fluids for propulsion, cooling, and other onboard systems.
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
- Two centre-to-end dimensions: 'A' (same as 90° elbow) and 'B' (overall out-to-out length)
- Available in LR (1.5D) and SR (1.0D) per ASME B16.9
- High velocity and erosion potential at the crown: specify adequate wall thickness
- In heat exchangers, return bend selection affects tube bundle cleanability
Confirm when ordering
- Specify LR or SR type and confirm overall length vs hairpin clearance
- Flanged return bend option available for removable heat exchanger channel
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 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 linePipe Bends (1D – 5D)Buttweld pipe bends in 1D, 1.5D, 3D and 5D radius to ASME B16.9, in carbon, stainless and alloy steel. 3D and 5D tables for mild steel.View specifications
Used on the same line45° 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
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 rangeReducing 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
Same rangeEqual CrossButtweld equal crosses to ASME B16.9 joining four pipes of one size, in stainless and carbon steel, with mild steel dimension tables.View specifications
Where it is specified
Industries using this component
Sectors that commonly specify the 180° Return Bend (LR & SR), and what else they take from us.
- RefineriesButtweld fittings, flanges and fabricated spools in carbon and alloy steel for crude, product and utility service.View sector
- Petrochemical PlantsDuplex, super duplex and stainless fittings and flanges for corrosive and high-pressure process service.View sector
- Power PlantsAlloy steel buttweld and forged fittings for high-temperature steam, feedwater and condensate circuits.View sector
Enquiries
Need a quotation for the 180° Return Bend (LR & SR)?
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.