Type 4 ultra lightweight cylinders
Type IV cylinders have a plastic lining, stainless steel end fittings and composite construction of high-strength fiberglass and epoxy resin.
The use of such materials eliminates problems with corrosion, and also guarantees the absence of galvanic corrosion. The cylinders were tested with a safety factor from 3.2 to 3.4. Cylinder designed for 250 bar, has a burst pressure of 840 bar or higher.
The cylinders are approved in accordance with EN 12245 and far exceed the requirements of this standard. This is especially important when testing for defects, impact tests and fire tests. For operating pressures of 200 and 250 bar, cylinders of various volumes are available. Each cylinder can be up to 2400 liters and intended for both transport and storage of CNG or BIOGAS.
They are can be filled up to 15 000 times, what is giving a long-term using.