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ASTM A234 WPB Butt welding concentric Reducer

What is the Concentric Reducer? Concentric reducers, are a type of steel butt welded pipe fittings. Shaped like a tapered joint, it is used to enlarge or reduce the diameter of the centerline. I...
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What is the Concentric Reducer?

Concentric reducers, are a type of steel butt welded pipe fittings. Shaped like a tapered joint, it is used to enlarge or reduce the diameter of the centerline. It handles slurries and abrasives easily, is suitable for corrosive operations, and is also beneficial where different ratings and wear protection are required when transferring between flanges or pipes.

ASTM A234 Standard

This standard applies to seamless and welded wrought-rolled carbon covered by ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95 and MSS-SP-97 Steel and alloy pipe fittings. These pipe fittings are manufactured for medium and high temperature pressure piping and pressure vessels.

ASTM A234 WPB Butt welding concentric Reducer
ASTM A234 WPB Butt welding concentric Reducer

Specifications

Size Range 3/4″ – 60″ / DN20 – 1500
Thickness Schedule SCH 10 – SCH 160, XXS
China Standard GB/T12459, GB/T13401, HG/T21635/21631, SH3408/3409
America Standard ANSI / ASME B16.9 / MSS SP 43
Japan Standard JIS B2311/2312/2313
Germany Standard DIN2605/2615/2616/2617
Europe Standard EN10253
Carbon Steel Q235, 20#, 35#, 45#, 20G,ASTM A234 WPB/WPC
Low Temp Carbon Steel Q345B, 16Mn, ASTM A420 WPL6
Pipeline Steel ASTM A860 WPHY 42 / 46 / 56 / 60 / 65
Alloy Steel ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92,

15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5

Stainless Steel ASTM A403 WP304/304L/304H, 316/316L, 310S, 317,347,904L
Duplex Stainless Steel ASTM A815 S32205, S31803, 32750, 32760

 

Buttwelding concentric/Eccentric reducer NPS 3/4” - 60” ASME B16.9
Buttwelding concentric/Eccentric reducer NPS 3/4” – 60” ASME B16.9

Butt welding fittings introduction

Butt welding pipe fittings are pipe fittings connected to pipes by welding, especially suitable for long pipelines, but not suitable for pipelines that need to be disassembled frequently. In the pipeline system, butt welding pipe fittings are pressure pipeline components used to change the direction or diameter of the pipeline, branch the pipeline and realize special connection functions in petrochemical power and other production equipment. It is an important part of the pressure piping installation. Due to the change of the flow direction and flow area of the medium at its installation position, the internal and external stress conditions are more complicated, so the quality level of the pipe fittings directly affects the safe and stable operation of the entire pipeline system. They are available in a variety of product types such as 90 degree elbows, 45 degree elbows, tees, crosses, pipe caps, concentric reducers, eccentric reducers, flanged nipples. The company’s products are mainly used in petrochemical, medical and health, electric power, aerospace, military industry, fire protection, metallurgy, shipbuilding, gas, nuclear power, and environmental protection, which require high-pressure pipelines with high pressure, equipment with precise dimensions and other high-pressure field.
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