There’s Stainless Steel and there’s Stainless Steel ! The properties of any stainless grade are defined not only by its alloy content but also by the way it is produced. ustentic stainless steel 316L is often used in water tanks. This grade offers limited strength properties, so need to be thick enough to handle the internal pressure.

So, the ideal solution is a formable stainless steel that is strong enough to enable thinner
structures..........DUPLEX 2304. Our Duplex Stainless Cylinder offers optimised composition alloy elements which have created a stronger and corrosion resistant product which out
performs not only other stainless steels but other competing solutions too.

Cylinder Body
Duplex 2304 Stainless Steel.
Domes are precision manufactured and welded to the body, producing a strong and reliable vessel.

Outer Casing
Mild steel with white plastic coated finish and corrosion resistant base. Wipe clean finish.
Thermal Installation Rigid polyurethene foam - CFC + HCFC free.

Primary Coil
22mm continuously wound coil, suitable for pumped systems only.

Immersion Heater
Supplied with all models. Long life incoloy, low noise element. Titanium Immersion Heaters can be purchased at an additional cost.

Expansion Vessel
Tempest unvented cylinders are supplied with all the necessary components, an external expansion vessel and control devices.