Concentric & Eccentric Pipe Reducers for Industrial Piping Systems

Overview

Butt Weld Reducer is a pipe fitting used to connect pipes of different diameters in a pipeline system while maintaining smooth and controlled flow transition.
By butt welding to the pipe ends, reducers provide a strong, permanent, and leak-proof connection, suitable for high-pressure and high-temperature service.

Butt weld reducers are essential components in oil & gas, petrochemical, power generation, shipbuilding, offshore platforms, and industrial pipeline systems.

They are available in Concentric Reducer and Eccentric Reducer designs to meet different flow and installation requirements.

Product Features

• Strong butt welded connection for long-term service

• Smooth internal transition minimizes turbulence and pressure loss

• High mechanical strength and excellent pressure resistance

• Suitable for high-pressure and high-temperature applications

• Available in concentric and eccentric types

• Custom fabrication according to drawings and project requirements

• Long service life under harsh working environments

Types of Butt Weld Reducers

Concentric Reducer

• Centerline of inlet and outlet are aligned

• Used in vertical pipelines

• Provides uniform flow transition

Eccentric Reducer

• Offset centerline design

• Used in horizontal pipelines

• Prevents air pocket formation and ensures proper drainage

• Ideal for pump suction lines and liquid pipelines

Standards Compliance

Our Butt Weld Reducers are manufactured in accordance with major international standards:

• ASME B16.9 – Factory-Made Wrought Butt Welding Fittings

• ASME B16.28 – Small Size Butt Welding Reducers

• EN 10253

• DIN 2616

• JIS B2311 / B2312 / B2313

• GOST Standards (Russia & CIS markets)

Materials & Grades

• Carbon Steel: ASTM A234 WPB, WPC

• Low Temperature Steel: ASTM A420 WPL6

• Stainless Steel: ASTM A403 WP304 / WP316 / WP321

• Alloy Steel: ASTM A234 WP5 / WP9 / WP11 / WP22 / WP91

• Special Materials: Duplex Stainless Steel, Nickel Alloys (Inconel, Monel, Hastelloy)

Size Range

• Nominal Size: DN15 – DN2000 (1/2" – 80")

• Wall Thickness: SCH 10 – SCH 160 / XXS

• Reducer Types: Concentric / Eccentric

• Connection Type: Butt Weld

Manufacturing Process

• Hot forming / cold forming

• Heat treatment

• Beveling and end preparation

• Dimensional inspection

• Surface finishing (black, pickled, sandblasted, coated)

Applications

Butt Weld Reducers are widely used in:

• Oil & gas pipelines

• Petrochemical and chemical plants

• Power plants and boiler systems

• Offshore platforms and marine piping systems

• Water treatment and industrial piping networks

Quality Control & Inspection

• Dimensional inspection

• Chemical composition analysis

• Mechanical properties testing

• PMI (Positive Material Identification)

• NDT: UT / RT / MT / PT (upon request)

• Hydrostatic test (if required)

Why Choose Our Butt Weld Reducers

• Manufactured according to ASME / EN / DIN / JIS / GOST standards

• Full size range and multiple material options

• Stable supply for EPC and project orders

• Custom fabrication based on drawings

• Strict quality control and inspection system

• Export experience to global markets