Pipe Reducer – ECCENTRIC REDUCER CONCENTRIC REDUCER

Description

Pipe reducer fittings are used to connect pipes of different diameters in piping systems and are essential components for flow control, velocity adjustment and system layout transitions. The two main types of reducers are concentric reducers and eccentric reducers, which are selected based on piping orientation and fluid service requirements.

In industrial piping systems, pipe reducers are typically installed together with butt weld fittings, pipes and pipe flanges to complete piping systems and ensure smooth flow transitions between different pipe sizes. Eccentric reducers are commonly used in horizontal pipelines to avoid air accumulation, while concentric reducers are generally used in vertical pipelines.

Pipe reducers are widely used in petrochemical plants, offshore platforms, refineries, LNG facilities, power plants and heavy industrial piping systems.

Specifications / Standards

Pipe reducers are manufactured according to international piping standards to ensure dimensional compatibility, welding quality and pressure rating compliance.

Typical standards include:

ASME B16.9 – Factory-Made Butt Welding Fittings
ASME B16.28 – Short Radius Fittings
MSS SP-75 – High Yield Butt Weld Fittings
EN 10253-2 – Butt Weld Fittings for Pressure Purposes
EN 10253-4 – Stainless Steel Butt Weld Fittings
ASTM A234 – Carbon Steel Pipe Fittings
ASTM A403 – Stainless Steel Pipe Fittings
ASTM A815 – Duplex Stainless Steel Pipe Fittings
ASTM B366 – Nickel Alloy Pipe Fittings
EN 10204 – Inspection Certificates

Pipe reducers are often supplied as part of complete piping material packages together with stainless steel pipe fittings and piping materials for EPC and industrial projects.

Material Grades

Pipe reducers can be manufactured in carbon steel, stainless steel, duplex stainless steel and nickel alloys depending on corrosion conditions, temperature and pressure requirements.

Material grades are selected according to project specifications, corrosion allowance and operating conditions.

Size Range

Typical size range for pipe reducers:

Size Range: 1/2″ to 72″
Wall Thickness: SCH 5S – SCH XXS
Types:
Concentric Reducer
Eccentric Reducer
Manufacturing Types:
Seamless Reducer
Welded Reducer
Fabricated Reducer

Special sizes and custom reducers can be manufactured according to project drawings and piping isometrics.

Manufacturing Process

The manufacturing process for pipe reducers typically includes:

Raw material pipe selection
Cutting
Hot forming / Cold forming
Heat treatment
Bevel machining
Surface treatment (Pickling / Passivation / Shot blasting)
Marking and traceability identification
Inspection and testing
Packing and shipment

All pipe reducers are fully traceable from raw material heat number to final inspection documentation.

Inspection & Testing

Inspection and testing may include:

Visual inspection
Dimensional inspection
PMI (Positive Material Identification)
Mechanical testing
Hardness testing
Ultrasonic testing (UT)
Dye penetrant testing (PT)
Magnetic particle testing (MT)
Radiography testing (RT) for welded reducers
Hydrostatic testing (if required)
Third-party inspection (SGS / BV / TUV / DNV)

Inspection certificates can be supplied according to EN 10204 3.1 or 3.2.

Applications / Industries

Pipe reducers are widely used in industrial piping systems across various industries:

Oil & Gas
Petrochemical
Offshore & FPSO
LNG & Gas Processing
Power Plants
Nuclear Industry
Chemical Plants
Desalination Plants
Shipbuilding
Heavy Industry

Pipe reducers are commonly used in process piping, pump suction lines, compressor lines, pipeline transitions and utility piping systems.

Packaging & Delivery

Pipe reducers are packed to prevent damage during transportation and storage.

Typical packing methods include:

Wooden cases
Plywood boxes
Pallets
Waterproof wrapping
End protection
Heat number marking
Packing list and traceability documentation

Export packing is suitable for sea freight, air freight and project site delivery.

Why Choose Us

We supply pipe reducers for industrial piping projects with complete material traceability, inspection documentation and project packaging requirements.

Our pipe reducers are supplied to EPC contractors, fabrication workshops, offshore projects, petrochemical plants and power plant projects where documentation, quality control and delivery reliability are critical.

We support complete piping material supply including pipes, fittings, flanges, forgings and prefabrication pipe spools, ensuring compatibility between all piping components and project specifications.

Steel Reducer Material Grades