Is 130 cm , upper tube diameter is 25mm lower diameter is 22mm wall thickness is 0 . 8mm 总长度130 cm ,管子上管直径25mm下管直径22mm壁厚
Fixed head heat exchangers with type 25 tubes and square 32 tube pitch ; number and pattern of tubes 端头固定的内管直径25三角形管心距32的管式热交换
Fixed head heat exchangers with type 20 tubes and triangular 25 tube pitch ; number and pattern of tubes 端头固定的内管直径20三角形管心距25的管式热交换
The choice of model used depends on the piping diameter and the amount of water to be used 规格制品是kmb - 25型kmb - 125型。根据配管直径，和使用水量来决定
All main gas line shall be at least 3 / 8 ” diameter ( 1 / 2 ” for plant / instrument air and n2 lines ) 所有气体干管的直径为3 / 8英寸(仪器空气干管直径为1 / 2英寸) 。
Fixed head tubular heat exchangers with type 25 tubes and triangular 32 tube pitch ; number and pattern of tubes 端头固定的内管直径25三角形管心距32的管式热交换
For " u " , " w " and similar type tubes from 4 inches ( nd 100 ) through 8 inches ( nd 200 ) diameter uhf burners are part of a custom designed combustion system 和相似型号的燃烧管直径从4英寸到8英寸， uhf炉头是常规设计燃烧系统部分。
Chart s static vacuum insulated , laminar radiation - shielded piping is offered in rigid and flexible styles with inner line diameters ranging from 3 8 " through 24 " 查特静态真空绝热管道，有硬管和软管两类，内管直径从3 8 "到24 " 。
Generally locate the valve five pipe diameters downstream from a fitting with two diameters downstream from the balancing valve free from fittings 通常将阀门放置在连接件下游五倍管直径远的地方，以及位于没有配置连接件的平衡阀下游两倍管直径的地方。
