Involute tube coil

OD1.0 x WT0.05mm
OD2.0 x WT0.10mm
OD3.0 x WT0.15mm
OD6.0 x WT0.30mm
OD8.0 x WT0.50mm
OD12.0 x WT0.70mm
OD16.0 x WT0.90mm
OD22.0 x WT1.0mm

Customized according to drawings

The coil made of a single tube, no welding connection, which reduces the leakage possibility.

For solar energy

The involute stainless steel coil is used for heat exchange of the medium inside and outside the steel tube, which increases the horizontal cross-sectional area of heat exchange and improves the heat exchange effect.

Stainless steel tube coil is usually used for heat exchanging, ie, different media (liquid or gas) inside and outside of the tube are to carry out heat exchanging. So the tube coil must be strong enough to withstand a certain high pressure and high temperature. And so the quality of tube coil is very important.
Our quality control are mainly making process control and finished coil quality control. In the making process, flaring tests are regularly carried out, the tube is expanded by more than 20%, and no cracks shall be happen. For finished tube coil, air tightness tests are carried out at requested pressure, no leakage allowed.