Short radius elbow

Short radius elbows, as their name suggests, are more compact in design. These fittings have a bend radius equal to the pipe diameter, making them ideal for applications where space is limited. Unlike long radius elbows, which provide a smoother flow, short radius elbows create sharper turns, making them suitable for low-pressure systems and tight spaces.

ASME B16.9 SR Elbow Manufacturer in India

ASME B16.9 SR Elbows are commonly available in 90-degree configurations. They create a sharper turn compared to long radius elbows. These fittings are manufactured according to the standards set by the American Society of Mechanical Engineers (ASME), ensuring precise specifications such as pressure ratings, markings, dimensions, surface finishes, tolerances, and testing procedures.

Following ASME B16.9 guidelines ensures that these fittings meet industry standards for quality and performance.

SR Elbow Specification

Short Radius 90 Degree Elbow Dimensions

Short radius reducing elbows are manufactured in size range of 1/2 to 48 inch

The wide size range of short radius reducing elbows allows for seamless connections between different pipe diameters in a piping system. This helps ensure smooth fluid flow by avoiding restrictions and providing accurate transitions between various pipe sizes used in plumbing and industrial applications.

The table below provides you with 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 radius is the same as pipe diameter (R=D)

This means that the curvature of the SR elbow matches the pipe diameter. This design offers a compact and efficient way to change the direction of fluid flow in piping systems. The consistent radius reduces the need for additional fastening steps while ensuring smooth flow between the pipe and the elbow.

Short Radius Elbow Formula

90 degree short radius elbows are used in conditions where the corners are relatively sharp

Its compact structure makes it ideal for applications where space is limited, such as when navigating obstacles or when the piping system needs to change direction quickly. It reduces the overall length of the piping run, which is essential for compact installations.

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 deg sr elbow creates a relatively large pressure drop as compared to long radius elbow

This results in less smooth fluid flow compared to long radius elbows. Therefore, SR elbows are not as widely used. However, they are still employed in situations where flow rate is not critical, or where fluids are moved over long distances with multiple directional changes. These elbows cause greater friction loss and may require 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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