CanaGas type-4 pressure vessels are made by winding a band of high-strength filament fibres over a proprietary high-density polyethylene (HDPE) liner. Depending on the required operating pressure, our liners are filament wound with either high-strength carbon fibre or fibreglass rovings. These continuous strands are drawn through a bath of wet epoxy resin before being wrapped in helical and hoop layers over the liner. Once the resin cures, the tank is then ready for installation and service. The filament winding process produces a very consistent pressure vessel which, is lightweight, but moreover, low-temperature compatible.
The HDPE liner is made 2 meters in diameter by approximately 3.5 meters so that 3 tanks will fit inside of a standard 40-foot shipping container.
These type-4 tanks will not rupture, even if penetrated by a bullet. The helical windings eliminate the potential of crack propagation and therefore rupture. These tanks also have a high level of impact resistance.
