🔷 90° Elbow (Long Radius & Short Radius) – Butt Weld Fitting

Manufacturer, Supplier & Exporter – VikTech Fittings

🔹 Product Overview

VikTech Fittings is a trusted manufacturer, supplier, and exporter of premium quality 90° Butt Weld Elbows manufactured strictly in accordance with ASME B16.9, ASME B16.28, DIN, EN, and other international standards.

A 90° elbow is one of the most commonly used butt weld pipe fittings designed to change the direction of fluid flow by 90 degrees in a piping system. These fittings are widely used in high-pressure and high-temperature environments where strength, durability, and leak-proof performance are critical.

Butt weld elbows are permanently welded to pipes, forming a strong and smooth connection that ensures structural integrity and efficient flow characteristics.

🔹 Detailed Technical Explanation

1️⃣ What is a 90° Butt Weld Elbow?

A 90° elbow is a curved pipe fitting used to redirect the flow of liquid, gas, steam, or chemicals in a pipeline system at a right angle (90 degrees).

Unlike threaded or socket weld fittings, butt weld elbows are:

• Welded directly to the pipe

• Beveled at the ends

• Designed for high strength applications

• Suitable for large diameter pipelines

The beveled ends ensure full penetration welding, making the joint extremely strong and leak-proof.

2️⃣ Types of 90° Elbows

🔸 Long Radius (LR) 90° Elbow

• Radius = 1.5 × Nominal Pipe Size (1.5D)

• Most widely used type

• Lower turbulence

• Reduced pressure drop

• Better flow efficiency

• Used in high flow applications

Example:
For 4” pipe → Radius = 6”

✔ Recommended for: Oil & Gas pipelines, refineries, power plants

🔸 Short Radius (SR) 90° Elbow

• Radius = 1 × Nominal Pipe Size (1D)

• Compact design

• Used where space is limited

• Slightly higher pressure drop

Example:
For 4” pipe → Radius = 4”

✔ Recommended for: Tight installation areas, skid systems, compact machinery

🔹 Manufacturing Process

At VikTech Fittings, 90° elbows are manufactured using:

• Hot forming process

• Cold forming process

• Mandrel bending (for precision)

• Heat treatment for stress relief

• Shot blasting

• Edge beveling as per ASME B16.25

This ensures:

✔ Uniform wall thickness
✔ Smooth internal surface
✔ Structural strength
✔ Dimensional accuracy

🔹 Technical Specifications

✔ Standards

• ASME B16.9

• ASME B16.28

• MSS-SP-75

• DIN 2605

• EN 10253

• ISO

✔ Size Range

• ½” NB to 48” NB

• Custom sizes available

✔ Wall Thickness

• SCH 10

• SCH 20

• SCH 30

• SCH 40

• SCH 60

• SCH 80

• SCH 120

• SCH 160

• XXS

✔ End Type

• Beveled Ends (Butt Weld)

🔹 Materials Available

🔸 Carbon Steel

• ASTM A234 WPB

• ASTM A420 WPL6

• IS 2062

Used for:

• Oil pipelines

• Structural applications

• General industrial use

🔸 Stainless Steel

• ASTM A403 WP304

• ASTM A403 WP304L

• ASTM A403 WP316

• ASTM A403 WP316L

Used for:

• Corrosive environments

• Chemical industries

• Food & pharmaceutical plants

🔸 Alloy Steel

• ASTM A234 WP11

• ASTM A234 WP22

• ASTM A234 WP91

Used for:

• High temperature

• High pressure steam lines

• Power plants

🔸 Duplex & Super Duplex

• ASTM A815 UNS S31803

• ASTM A815 UNS S32750

Used for:

• Offshore

• Marine

• High chloride environments

🔹 Applications

90° Butt Weld Elbows are widely used in:

✔ Oil & Gas Pipelines
✔ Petrochemical Plants
✔ Refineries
✔ Power Plants
✔ Thermal & Nuclear Plants
✔ Water Treatment Plants
✔ Marine & Offshore
✔ Sugar & Cement Industries
✔ Infrastructure Projects

🔹 Advantages

✔ Strong permanent welded connection
✔ Smooth flow with minimal turbulence
✔ High pressure resistance
✔ High temperature resistance
✔ Corrosion resistant (as per material grade)
✔ Long service life
✔ Low maintenance

🔹 Testing & Quality Control

Every 90° elbow at VikTech Fittings undergoes strict quality inspection:

• Visual inspection

• Dimensional inspection

• Ultrasonic testing

• Hydrostatic testing

• PMI Testing

• Radiography (on demand)

• Third Party Inspection (TPI)

Mill Test Certificate (MTC) provided as per EN 10204 3.1 / 3.2.

🔹 Packaging & Supply

• Wooden boxes

• Wooden pallets

• Bubble wrapped

• Export worthy packing

• Marking as per client requirement

We supply across:

• PAN India

• Middle East

• Africa

• Europe

• Southeast Asia

🔹 Why Choose VikTech Fittings?

✔ Manufacturer & Bulk Stockist
✔ Ready Stock Available
✔ Fast Delivery
✔ Competitive Pricing
✔ Export Documentation Support
✔ Customized Solutions