Short radius elbow

Short radius elbows are known for their compact design, as the name suggests. These fittings have a bend radius that is equal to the pipe diameter, making them significantly shorter than long radius elbows. Due to their unique geometry, they are commonly used in low-pressure fluid systems and situations where space is limited.

ASME B16.9 SR Elbow Manufacturer in India

ASME B16.9 short radius elbows are typically available in 90-degree configurations. They create a sharper turn compared to long radius elbows. Manufactured according to ASME B16.9 standards, these fittings ensure high-quality performance and reliability. The standard covers aspects like dimensions, pressure ratings, material specifications, and testing procedures.

Following ASME B16.9 guidelines ensures that the fittings meet strict quality and safety requirements, making them suitable for various industrial applications.

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 piping systems. 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 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)

It means that SR elbow curvature of the bend is same to the pipe diameter. This offers compact and beneficial change for fluid flow direction in piping applications. The same size radius reduces the extra steps for fastening the elbow while guaranteeing smooth flow between the pipe and short radius elbow.

Short Radius Elbow Formula

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

Its structure gives a compact curve which makes it highly applicable for application where restricted space is available to cross over the hindrance or where the piping system needs to change their direction rapidly. It reduces altogether piping run range or extent, which are essential for compressed installation of piping application.

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 makes 45 deg sr elbow fluid doesn’t flow as smoothly as compared long radius elbow because of which SR elbow is not well-known. Although it is used where the flow rate is non-essential and where fluids are moved over a long distances or experiences several directional changes, as this elbow fitting gives greater friction loss and also where installation of huge pumping machinery.

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