Concentric Reducer

Jinhang Pipeline supplies concentric reducers for connecting pipes of different diameters along a common centerline. Available in carbon steel, alloy steel, low-temperature steel, and stainless steel, our concentric reducers are suitable for oil and gas, petrochemical, power generation, and industrial piping systems.

Manufactured to ASME B16.9 with applicable ASTM material specifications, our concentric reducers offer reliable fit-up, consistent dimensions, and dependable welding performance. Custom sizes and materials are available to meet specific project requirements.

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Technical Specifications

Item	Specification
Product Name	Concentric Reducer
Product Type	Butt Weld Concentric Reducer
Shape	Concentric, conical transition
Connection Type	Butt Weld
Size Range	NPS 1/2–NPS 48 (DN 15–DN 1200)
Size Configuration	Large End × Small End
Manufacturing Standard	ASME B16.9
Material Standards	ASTM A234/A234M, ASTM A403/A403M, ASTM A420/A420M
Material Options	Carbon Steel, Low-Temperature Carbon Steel, Alloy Steel, Stainless Steel
Wall Thickness	Customization
Dimensions	Customization
End Preparation	Customization
Customization	Available

Available Materials

Material Category	Common Material Grades	Material Standard
Carbon Steel	ASTM A234 WPB	ASTM A234/A234M
Low-Temperature Carbon Steel	ASTM A420 WPL6	ASTM A420/A420M
Alloy Steel	ASTM A234 WP11, WP22, WP91	ASTM A234/A234M
Austenitic Stainless Steel	ASTM A403 WP304/304L, WP316/316L	ASTM A403/A403M

Manufacturing Standards

Our concentric reducers are manufactured in accordance with ASME B16.9 and applicable ASTM material standards, including ASTM A234/A234M for carbon and alloy steel, ASTM A420/A420M for low-temperature steel, and ASTM A403/A403M for stainless steel. These standards help ensure compatibility with customer project specifications and piping systems.

We maintain strict control over raw materials, forming processes, dimensions, wall thickness, and surface quality to ensure accurate fit-up, reliable welding performance, and consistent product quality. Custom sizes and material options are available to meet specific project requirements.

Applications

Oil and Gas Industry: Connect pipes of different diameters in oil and gas transmission systems.

Petrochemical Plants: Support process piping and fluid transportation systems.

Power Generation: Connect piping sections in power plants and steam systems.

Chemical Processing: Accommodate pipe size transitions in chemical processing lines.

Water Treatment: Connect different pipe sizes in water supply and treatment systems.

Industrial Piping Systems: Provide smooth transitions between pipes of different diameters in industrial pipelines.

FAQ

What is a concentric reducer used for?

A concentric reducer connects pipes of different diameters along a common centerline, providing a smooth transition in piping systems.

Which standards do your concentric reducers meet?

Our concentric reducers are manufactured to ASME B16.9, with applicable ASTM material standards selected according to material requirements.

What materials are available for concentric reducers?

Available materials include carbon steel, low-temperature carbon steel, alloy steel, and stainless steel.

Can you customize concentric reducers?

Yes, we can customize concentric reducers based on customer-provided drawings, dimensions, materials, and project specifications.

Which industries use concentric reducers?

Concentric reducers are widely used in oil and gas, petrochemical, power generation, chemical processing, and water treatment systems.

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