Short radius elbow

Short radius elbows, as their name suggests, are more compact in design. The key feature of a short radius elbow is that the bend radius is equal to the pipe diameter. This makes them ideal for applications where space is limited and a sharp turn is needed. Although less common than long radius elbows, they are often used in low-pressure systems where space constraints make it necessary.

ASME B16.9 SR Elbow Manufacturer in India

ASME B16.9 SR Elbows are typically available in 90-degree configurations. These elbows create sharper turns compared to their long-radius counterparts. They are manufactured according to the standards set by the American Society of Mechanical Engineers (ASME), which ensures quality, safety, and consistency in the production of butt-weld fittings such as pressure ratings, markings, sizes, surface finishes, tolerances, and testing procedures.

Adhering to ASME B16.9 standards ensures that these fittings meet the required specifications for various industrial applications.

SR Elbow Specification

Short Radius 90 Degree Elbow Dimensions

Short radius reducing elbows are manufactured in sizes ranging from 1/2 to 48 inches

The wide range of sizes for short radius reducing elbows allows for seamless connections between different pipe diameters in piping systems. This helps ensure smooth fluid flow by eliminating restrictions and enabling efficient movement between pipes of varying sizes, making them suitable for plumbing and industrial applications.

The table below provides the dimensions or size range of short radius elbows:

45 Degree SR Elbow Dimensions

ASME B16.9 Short Radius Elbow Dimensions Inches

In SR Elbow, the radius is the same as the pipe diameter (R=D)

This means that the curvature of the SR elbow matches the pipe diameter, allowing for a compact and efficient change in direction within piping systems. This design reduces the need for additional fastening steps while ensuring smooth fluid flow between the pipe and the elbow.

Short Radius Elbow Formula

90-degree short radius elbows are used in situations with sharp turns

Its compact design makes it ideal for installations where space is limited, such as in tight corners or when rapid directional changes are needed. It minimizes the overall length of the piping system, which is beneficial for compressed installations in industrial settings.

SS Short Radius Elbow Applications

• Oil and Gas Pipeline
• Water Supply Systems
• Chemical Industry
• Power Plant
• Fabrication Industry
• Structural Pipe
• Paper & Pulp Industry
• Food Processing Industry

45-degree SR elbows create a larger pressure drop compared to long-radius elbows

This results in less smooth fluid flow, making them less commonly used. However, they are still employed in applications where flow rate is not critical, and fluids move over long distances or through multiple directional changes, despite the increased friction loss and potential need for larger pumping equipment.

Long Radius VS Short Radius Elbow

90 Deg Short Radius Elbow Weight Chart

Types of Short Radius Elbow

Short Radius 90 Degree Elbow

45 Degree SR Elbow

3D Short Radius Elbows

ASME B16.9 5D Short Radius Elbow

Buttweld Short Radius Pipe Elbow

1.5D Schedule 10 SR Elbows

Inconel Buttweld SR Elbow Tolerance

NPS	32 to 48	26 to 30	20 to 24	10 to 18
OD at Bevel (D)	+ 6.4 – 4.8	+ 6.4 – 4.8	+ 6.4 – 4.8	+ 4 – 3.2
ID at End			4.8	3.2
Center to End 3D (A/B)	6	6	3	3
Center to End LR (A/B)	5	3	2	2
NPS	5 to 8	4	3 to 3.1/2	1/2 to 2.1/2
OD at Bevel (D)	+ 2.4 – 1.6	1.6	1.6	+ 1.6 – .8
ID at End	1.6			.8
Center to End 3D (A/B)	3	3	3	3
Center to End LR (A/B)	2	2	2	2

Marking for Nickel Alloy Buttweld SR Elbow

ANSI B16.9 SR Elbows Fittings Materials and Grades

Material	Standards and Grade
Carbon Steel Short Radius Elbow	ASTM A105 ASTM A350 LF2 ASTM A694. DIN 1.0402 DIN 1.0619
Alloy Steel Short Radius Elbow	ASTM A182 F5 F9 F11 F22 F91
Stainless Steel Short Radius Elbow	ASTM A403 WP304 F304L F316 F316L F317 / 317L F321 / 321H F347
Inconel 90 Degree Short Radius Pipe Elbow	600 601 625 718 X750
Copper Nickel Short Radius 90 Degree Elbow	C70600 – 90/10 C71500 – 70/30
Hastelloy Short Radius Reducing Elbow	C22 C276 C4 B2 X B3
Nickel Alloy SR Elbow	200 201
Duplex Short Radius Elbow	S31803 S32205
Super Duplex SR 45 deg Elbow	S32760 S32750
Incoloy SR Elbow	825 800 800H 800HT
Titanium Short Radius 90 Degree Elbows	Grade 1 Grade 2 Grade 4 Grade 5 Grade 7

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