CanaGas type-4 pressure vessels are fabricated by filament winding a band of high-strength fibres over our high-density polyethylene (HDPE) liner. The computer controlled filament winding process produces a very consistent pressure vessel.
The liners are wound using either carbon fibre or high-strength fibreglass rovings. Carbon fiber for ultra light weight tanks; fibreglass for heavier but low cost tanks. Notably, fibreglass tanks get stronger with lower temperatures. Fibreglass tanks also provide a very high level of impact resistance.
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.
The CanaGas tanks are made 2 meters in diameter by 3.5 meters so that 3 tanks will fit inside of a standard 40-foot shipping container, or, 4 tanks in a 53-ft shipping container.
Before being wound with helical and hoop layers over the liner, the continuous strands of fiber are drawn through a bath of wet epoxy resin. Once the resin cures, the tank is then complete and ready for service.
The CanaGas tanks are special in that they are made low-temperature compatible.
