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ASTM A234 WPB Carbon Steel CONCENTRIC REDUCER BW B 16.9

Concentric reducer’s dimnesions and its usage and advantage

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What is a concentric reducer?

A concentric reducer, which is also known as a tapered expansion joint, is a fitting used to connect two pipes or tubes that have different inside diameters. Both tubes need to share a common centerline or alignment in order to facilitate the flow of fluid or a substance. Reducers can be manufactured using rubber, stainless steel, carbon steel, steel alloy, titanium alloy, copper, nickel, cast iron, brass, or other materials that have met the standards of the pipe industry. It is normally used in joining vertical pipes that need to be anchored for safety reasons. Concentric reducers are common in both the onshore and offshore operation of the oil and gas industry where there is a heavy volume of cargo transfer and vapor recovery

SPECIFICATION Of concentric reducer

Size Range 3/4″-60″/DN20-1500
Thickness schedule SCH10-SCH16,XXS
China Standard GB/T12459,GB/T13401,HG/T2635,SH3408/3409
America Standard ANSI/ASME B 163.9 /MSS SP 43
Europe Standard EN10253
Carben Steel Q235,20#,35#,45#,20G,ASTM A234 WPB/WPC
Low Tem Crabon Steel Q345B,16Mn,ASTM A420 WPL6
Pipeline Steel ASTM A860,WPHY 42/46/56/60/65
Alloy Steel ASTM A234 WP11/WP12/WP5/WP9/WP91/WP92 F11/12/5/9/91/92/22,15CrMoG
Stainless Steel ASTM a403 WP304/304L/304H,316/316L,310S,317,347,904L

When would you use Concentric reducer 

Reducers can be used simply to adapt pipes of other sizes, but there are also more complicated uses for them. They may need to be used when the flow has to be limited or expanded in a piping system, such as if the hydraulic nature of the piping system demands it. If you’re using a pipe reducer, you need to consider the consequences for the pipe system as a whole, because there will be changes in both flow and pressure.Once you know that you need to use a pipe reducer, you need to make the decision between concentric and eccentric reducers. Most people are going to need to use a concentric pipe reducer, but there are some important reasons why an eccentric pipe reducer might be preferred.

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