Production of Unvented Cylinders
The TopTank cylinders are produced in a state of the art factory where many manufacturing process is fully automated. The steel cylinders withstand high pressure and temperature and have a very long service life.

Enamelling Process
After fabrication the cylinders are enamelled in vacuum to avoid any trapped air. They are then baked at a temperature of 850 oC. The very durable and natural quartz rock coating eliminates scaling and corrosion. The zinc anode provides further protection if required. Over 1 m cylinders are produced with this patented process.

TopTank unvented cylinders are well insulated and have quality powder coated finish. They are available in many colours as long as it is white or - may be silver grey! The cylinders are packed individual on a pallet with shrink wrapping protection.