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A182 F316 Reducer Concentric VS Eccentric

A182 F316 reducer is a stainless steel butt welded fitting which can used in some corrosive environments because of the high corrosion resistance of stainless steel.BW reducers can be concentric (COC) reducer and eccentric (ECC) reducer.There are many differences between the two types of reducers,you could find the summary “Concentric VS Eccentric” in the content below.

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Reducer is a common used butt welded fitting, A182 F316 Reducer is one type of stainless steel reducers.

 

BW reducer has two types:Concentric and Eccentric

The two ends of concentric reducer are designed with large diameter and small diameter, and the pipe is connected through conical transition section on the same axis.

Eccentric reducers have different end sizes and are used to connect pipes with different diameters on the same axis.

 

The end of Butt welded fittings are connected to the pipe system by butt welding.Butt weld fittings provide permanent leak-proof performance.BW fittings could made from seamless or welded pipe,and then through several processes formed to get the shape of pipe fittings.

 

ECC Reducer VS COC Reducer

  • The joint effect of the two is that the diameter change needs to change from one specification to another.
  • Concentric reducer is conducive to fluid flow, and the interference to fluid flow state is small when the diameter is reduced. Therefore, concentric reducers are used for gas and vertical flow liquid pipelines;
  • One side of the eccentric reducer is flat, which is convenient for exhaust or liquid discharge, startup and maintenance. Therefore, eccentric reducer is generally used for horizontal liquid pipeline.

 

SPECIFICATION

Shape Reducer
Size Range 1/2″ – 80″ / DN15 – 2000
Thickness Schedule SCH 10,SCH 10S, SCH 20, SCH 40,SCH 40S, STD, XS,SCH 80, SCH 80S, SCH 100, SCH 120, SCH 160, XXS
China Standard GB/T12459, GB/T13401, HG/T21635/21631, SH3408/3409
America Standard ANSI / ASME B16.9 / MSS SP 43
apan Standard JIS B2311/2312/2313
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, 321, 317,347,904L
Duplex Stainless Steel ASTM A815 S32205, S31803, 32750, 32760

 

 

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