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45 Degree Short Radius Elbow custom

45 Degree Short Radius Elbow Manufacturers

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Precision 45° Short Radius Elbows

The 45-degree Short Radius (SR) Elbow is a precision pipe fitting that changes the direction of flow by 45° with a centerline radius equal to one pipe diameter (1D), producing the most compact direction change available in butt-weld pipe fittings. As a professional manufacturer, we produce 45° SR elbows in carbon steel (A234 WPB), stainless steel (A403 WP304L/316L), and alloy steel grades to suit all industrial applications. The short radius geometry is specifically engineered for installations where space is the primary constraint—such as tight equipment skids, offshore platform topsides, and congested underground utility corridors. The internal profile of our 45° SR elbows is precision-formed to provide a smooth flow transition with minimal pressure drop. Available in schedules from 5S through XXS, these fittings are manufactured and dimensionally verified to ASME B16.9, ensuring full compatibility with standard piping systems worldwide. Whether used in process piping, utility systems, or structural drainage applications, the 45° SR elbow offers a reliable, code-compliant direction change in the smallest possible footprint.

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45° SR Elbow Technical Specifications

ParameterSpecification Detail
Material OptionsA234 WPB (CS), A403 WP304L/316L (SS), A234 WP11/22 (Alloy)
Design StandardASME B16.9, DIN 2605, EN 10253-2
Bend Angle45 Degrees
Centerline Radius1 × Nominal Pipe Diameter (1D)
Size Range1/2" to 48" (DN15 - DN1200)
Wall ThicknessSchedule 10S, STD, XS, 40S, 80S, 160, XXS

Space-Constrained Industrial Applications

The 45° Short Radius elbow is the preferred directional fitting wherever piping layout space is at a premium. On offshore oil and gas platforms, tight topside layouts make SR elbows essential for navigating structural steelwork and equipment nozzles at 45-degree angles. Chemical plant skid-mounted units use them to achieve compact pipe routings that reduce the overall footprint of packaged equipment. In shipbuilding, 45° SR elbows are used extensively in engine room bilge, ballast, and fuel systems where compact runs are critical for vessel structural integrity. HVAC and chilled water systems in high-rise commercial buildings use them in concealed ceiling and riser spaces. Industrial drainage and effluent collection systems use 45° elbows at collection points to create gradual flow transitions that minimize solids deposition. Power plant condenser and cooling water systems also rely on them for connecting heat exchanger nozzles to the main cooling water headers.

Dimensional & Flow Advantages

  • Maximum Space Efficiency: The 1D radius produces the tightest possible directional change, reducing the linear pipe run by up to 50% compared to a 45° long radius elbow.
  • 45° Directional Flexibility: Provides an intermediate direction change between straight pipe and the standard 90° elbow, enabling a wider range of piping layout options.
  • Full Schedule Compatibility: Available in all pipe schedules from lightweight 5S through heavy-wall XXS, ensuring the elbow matches the full design pressure and temperature rating of the system.
  • ASME B16.9 Dimensional Compliance: Precision manufacturing to international standards ensures interchangeability and code compliance in all regulated industrial piping systems.

Supply & Shipping Information

We support payments via T/T, L/C, and D/P. We maintain a comprehensive inventory of 45° SR elbows in the most common materials, sizes, and schedules for immediate dispatch. All elbows are coated with anti-rust oil and supplied with plastic end caps to protect the beveled weld ends. Carbon steel elbows are additionally painted with black anti-rust primer for extended storage protection. We use reinforced wooden crates for international sea freight and carton packaging for smaller air-freight orders. Full documentation is provided including 3.1 Mill Test Certificates, dimensional inspection reports, and heat treatment records where applicable. For large piping spool fabrication projects, we can supply 45° SR elbows as part of complete fitting kits with coordinated delivery schedules.

  • Q: When should I use a 45° short radius elbow instead of a 45° long radius elbow?
  • A: Use a 45° SR elbow when space is the overriding constraint and pressure drop is acceptable. Use a 45° LR elbow (1.5D radius) for lower-pressure-drop applications, high-velocity fluid systems where erosion is a concern, or where flow-induced turbulence must be minimized, such as in pump suction lines.
  • Q: Are 45° SR elbows available in duplex and super duplex stainless steel?
  • A: Yes, we manufacture 45° SR elbows in Duplex 2205 (S31803) and Super Duplex 2507 (S32750) for offshore and chemical applications requiring maximum chloride corrosion resistance in a compact fitting geometry.
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Jiangyin Gaoxin Pipe Fittings Co., Ltd.
About Us
JIANGYIN GAOXIN PIPE FITTINGS CO.,LTD.
Our company is a professional manufacturer of pressure piping components. As 45 Degree Short Radius Elbow Manufacturers，Our product range covers butt-weld, socket-weld, and threaded pipe fittings, including flanges and customized non-standard parts. These products are widely used in industries such as oil & gas, chemical processing, power generation, shipbuilding, papermaking, metallurgy, pharmaceuticals, and food processing. We manufacture according to standards such as ASME, EN,JIS,DIN,ANSI,GOST, MSS, GB/T,HG, DL, SH, SY,and have a complete range of inspection equipment, a strict quality control system, and various certifications（PED,AD2000,EAC, ABS,BV, DNV,NORSOK M650, ISO9001,ISO14001,ISO45001,etc.）, making us a leader in the industry.

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