As one type of industrial fittings, reducing pipe is mainly used for connection between two pipelines with different diameters. Generally, pipe reducers can be divided into concentric reducer and eccentric reducer. The former is often used on vertical pipelines, while the latter is usually installed on horizontal pipelines. Sometimes, flow rate can’t change two much when the flow increases or decreases in a pipeline. The reducer is perfect for this situation. It is able to effectively prevent cavitation when installed in the inlet of a pump. The reducer is also needed at the joint points of an instrument such as flow meter or control valve to coordinate with the instrument.

Outer Diameter
Seamless reducing pipe: 1/2"~32", DN15~DN800
Seamed reducing pipe: 6"~60" DN150~DN1500

Thickness
SCH10, SCH20, SCH30, STD, SCH40, SCH60, XS, SCH80, SCH100, SCH120, SCH140, SCH160, XXS, SCH5S, SCH20S, SCH40S, SCH80S. The largest thickness reaches 200mm

Standards
GB/T12459-2005, GB/T13401-2005, GB/T10752-2005
SH/T3408-1996, SH/T3409-1996
SY/T0609-2006, SY/T0518-2002 SY/T0510-1998
DL/T695-1999, GD2000, GD87-1101
HG/T21635-1987, HG/T21631-1990
ASME B16.9-2007, ASME B16.25-2007
MSS SP 75-2008, MSS SP 43-2008
CSA Z245.11-05-2005
EN10253-1-1999, EN10253-2-2007, EN10253-3-2008, EN10253-4-2008
DIN2616-1-1991, DIN2616-2-1991
BS1640-1-1962, BS1640-2-1962, BS1640-3-1968, BS1640-4-1968, BS1965-1-1963
GOST17378-2001
AFNOR NF A 49-289-1990, AFNOR NF A 49-170-1-1999, AFNOR NF A 49-170-2-2009, AFNOR NF A 49-170-3-2009, AFNOR NF A 49-170-4-2009
ISO3419-1981, ISO5251-1981
JIS B2311-2009, JIS B2312-2009, JIS B2313-2009

Raw Materials
Carbon steel: ASTM/ASME A234 WPB-WPC
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low-temperature steel: ASTM/ASME A402 WPL 3-WPL 6
High-performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Production Process
Bending --- Extruding --- Pushing --- Mould Pressing --- Cold Machining or Hot Forming

Application
The product is widely used in many areas such as power generation plant, petroleum industry, natural gas system, chemical industry, shipbuilding industry, heating system, paper-making industry, metallurgy industry, etc.