Stepped Tube Option

Stepped High Flow Tubes

Some cooling problems are caused by large pressure drops across long tubes.
Stepped tubes can improve flow, especially on long, thin tubes.
Stepping the diameter from larger to smaller can increase flow

Straight

An example of straight tube performance.

.148 OD X 1.35 ID Tube

The longer the tube, the lower the flow(GPM)

Tube Size		OAL (in)	GPM
O.D.	I.D.
0.148	0.135	2	2.84
		6	2.31
		12	1.94
		20	1.65

Stepped

.148 OD X 1.35 ID Tube

Flow drop-off seen in the straight tube above is reduced.
Greater impact is seen at longer lengths.
See all tube sizes here.
Specify custom High Flow Tubes h e re.

GPM goes up with a stepped tube

Larger steps can provide better flow