Stainless Steel Butt Welding Reducer ASME B16.9 Concentric/Eccentric 150LB Pipe Fitting

Stainless Steel Butt Welding Reducer ASME B16.9 Concentric/Eccentric 150LB

1. Product Description

A stainless steel reducer is a pipe fitting designed to connect pipes or tubes of different nominal diameters within a piping system. It provides a smooth, tapered transition from a larger bore to a smaller bore, ensuring continuous and stable fluid flow. Manufactured from high-quality stainless steel, this fitting offers excellent corrosion resistance, high mechanical strength, and long service life, making it suitable for demanding conditions such as high pressure, high temperature, and corrosive media.

Based on structural configuration, stainless steel reducers are classified into two types:

• Concentric Reducer: A symmetrical conical fitting where the centreline of the reduction coincides with the pipe centreline. It is ideal for vertical pipelines or applications requiring uniform flow distribution.

• Eccentric Reducer: An asymmetrical conical fitting where the centreline is offset. It is used in horizontal pipelines to keep either the bottom or top of the pipe level, effectively preventing air pockets or liquid accumulation.

There are two main types of stainless steel reducers:

• Concentric Reducer: A symmetrical, cone-shaped fitting that reduces or enlarges the diameter equally about the center line. It is widely used when single or multiple diameter changes are required.

• Eccentric Reducer: A cone-shaped fitting that reduces or enlarges the diameter but is not symmetrical about the center line. It is applied to maintain the top and bottom pipe level and to avoid trapping of air inside the pipe.

2. Product Applications

Stainless steel reducers are widely employed in various industrial fluid conveyance systems. Typical application fields include:

• Petrochemical Industry: In crude oil, natural gas, and chemical product transmission pipelines.

• Chemical Industry: For piping systems handling strong acids, alkalis, and other corrosive chemicals.

• Food & Beverage Industry: In sanitary pipelines for dairy, fruit juice, beer, purified water, and other consumable liquids.

• Pharmaceutical Industry: For sterile preparations, active pharmaceutical ingredients (APIs), and purified water systems.

• Water Treatment & Environmental Protection: In municipal water supply, wastewater treatment, and seawater desalination projects.

• Marine Engineering: For offshore platforms, shipboard systems, and submarine pipelines.

• Power Generation: In boiler steam lines, nuclear cooling systems, and thermal distribution networks.

​3.Product Advantages

• Superior Corrosion Resistance: Stainless steel effectively resists atmospheric, moisture, chemical, and salt-spray corrosion. Grades such as 316L and duplex steels offer exceptional performance in chloride-rich environments.

• High Strength and Toughness: Maintains excellent mechanical properties over a wide temperature range (-196°C to 800°C), with good impact and vibration resistance, preventing deformation or cracking.

• High-Temperature & High-Pressure Capability: Withstands high-temperature steam and high-pressure fluid surges, suitable for pressure ratings from Class 150 up to Class 2500.

• Hygienic and Clean: Interior surfaces can be precision-polished to Ra ≤ 0.8μm, with no dead corners or material entrapment, meeting GMP and FDA sanitary standards.

• Wide Material Selection: Available in 304, 304L, 316, 316L, 317L, 321, 310S, 904L, Duplex 2205, 2507, and other grades to match different corrosion resistance requirements.

• Broad Size Range: Covers DN15 to DN1800 (up to 72″), with wall thicknesses from SCH5S to SCH160S, and supports non-standard customisation.

• Multiple Connection Options: Offered with butt-weld, socket-weld, or threaded ends to facilitate on-site installation.

4.Key Product Parameters

 
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