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usage,specification of a equal tee and ite difference between a reducing tee.

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Usage of  an equal tee?

Equal Tees are used to connect pipes if all openings are equal in diameter but branch connection will be any angle like 90, 45 degree or any others. And this is used if all branched pipe has the same diameter required except the same design and dimension will be followed to fabricate.

Specification of equal tee

Shape Type Equal Tee and Reducing Tee
Size Range 1/2″ – 80″ / DN15 – 2000
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

Difference between equal tee and reducing tee

An equal tee-piece is where two pipes of the same diameter intersect each other at 90 degrees. The joint line or mitre line on an equal tee-piece will go all the way to the centre line of the intersecting pipe. An unequal tee-piece is where one pipe intersecting another is smaller than the main pipe.


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