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Eccentric Reducer Black Paint Seamless Buttweld

The Center point of the circle at both ends of the tube is not on the same straight line is called concentric reducers. The Concentric reducer (reducing pipe) is a pipe fitting used for the diameter of the pipe. The commonly used forming process is reducing diameter pressing, expanding diameter pressing or reducing diameter plus expanding diameter pressing, and stamping forming can also be used for reducing diameter pipes of certain specifications.

Eccentric Reducer Black Paint Seamless Buttweld Dimensions

SizeO.D   at BevelHSizeO.D   at BevelH
Large EndSmall EndLarge EndSmall End
3/4"x3/8"26.717.3385x3 1/2"141.3101.6127
1x1/2"33.421.3515x2 1/2"141.373127
1 1/4x1"42.233.4515x2"141.360.3127
1   1/4x3/4"42.226.7516x5"168.3141.3140
1   1/4x1/2"42.221.3516x4"168.3114.3140
1 1/2x1   1/4"48.342.2646x3 1/2"168.3101.6140
1 1/2x1"48.333.4646x3"168.388.9140
1   1/2x3/4"48.326.7646x2 1/2"168.373140
1   1/2x1/2"48.321.3648x6"219.1168.3152
2x1 1/2"60.348.3768x5"219.1141.3152
2x1 1/4"60.342.2768x4"219.1114152
2x1"60.333.4768x3 1/2"219.1101.6152
2 1/2x2"7360.38910x6"273168.3178
2 1/2x1   1/2"7348.38910x5"273141.3178
2 1/2x1   1/4"7342.28910x4"273114.3178
2 1/2x1"7333.48912x10"323.8273203
3x2 1/2"88.9738912x8"323.8219.1203
3x1 1/2"88.948.38912x5"323.8141.3203
3x1 1/4"88.942.28914x12"355.6323.8330
3 1/2x3"101.688.910214x10"355.6273330
3 1/2x2   1/2"101.67310214x8"355.6219.1330
3 1/2x2"101.660.310214x6"355.6168.3330
3 1/2x1   1/2"101.648.310216x14"406.4355.6356
3 1/2x1   1/4"101.642.210216x12"406.4323.8356
4x3 1/2"114.3101.610216x10"406.4273356
4x2 1/2"114.37310218x16"457406.4381
4x1 1/2"114.348.310218x12"457323.8381


Concentric Reducer Black Paint Seamless/Welded VS Eccentric Reducer

1. Standard (Similarity):

Both eccentric reducer black paint and stainless steel eccentric reducer manufacture standards can be ASME B16.9, ASME B16.28, MSS SP-43, MSS SP-75 JIS B2311, DIN2605/2615/2616/2617, GOST 17375/17376/17378/17379, ISO

2 Wall Thickness (Similarity):

Both eccentric reducer black paint and stainless steel eccentric reducer wall thickness can be SCH10/10S, SCH20/the 20S, STD,SCH40/40S, XS,SCH80, XXS, ETC.(for ANSI), SGP(for JIS)

3. Range of Applications (Similarity):

Size: 1/2"-48"(DN15-DN1200), or even bigger

Finishing: Black, Vanish, Oiled, Galvanized.

Connection type: Butt Welding

4. Installation (Similarity and Difference):

The welding method is the same, the stainless steel reducer has corrosion resistance, suitable for the corrosive medium pipeline.

Eccentric Reducer Black Paint Seamless Buttweld FAQs

Q 1. What is the Difference Between Concentric Reducer and Eccentric Reducer in Application?

When the diameter is changed, the concentric reducer has small interference to the fluid flow state. So the concentric reduce is widely used in gas and vertical liquid pipe system. The eccentric reducer is flat on one side which is good for exhaust or liquid drainage. Therefore, the eccentric reducer is generally used in a horizontally installed liquid pipes. 

Q 2. How is the Offset Distance Calculated on an Eccentric Reducer?

The offset distance= ½ x (Largest I.D. [inside diameter] – Smallest I.D.)

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