Viking Liquid Propane Gas (LPG) Fuel Tank

Viking Composite LPG Fuel Tanks: Safety and Innovation Redefined

When it comes to Liquid Propane Gas (LPG) fuel tanks, Viking Cylinders stands apart from conventional steel and aluminum options through a fundamentally different engineering approach. Rather than simply refining traditional metal tank designs, Viking built their composite cylinders from the ground up with safety, weight savings, and real-world usability as the guiding principles.

The Composite Advantage

Viking LPG tanks are constructed using a three-layer fiberglass composite design. At the core is a seamless blow-molded HDPE liner, wrapped in fiberglass reinforcement and finished with a durable, UV-protected outer casing. This construction makes Viking cylinders 100% non-corroding — an especially critical advantage in marine, coastal, and humid environments where traditional steel tanks rust and degrade over time.

The weight savings are equally significant. Viking composite propane cylinders weigh approximately 50% less than comparable steel cylinders and about 25% less than aluminum alternatives. For boaters, RV owners, campers, and anyone who regularly moves their propane supply, that weight difference is immediately noticeable and practically meaningful.

See-Through Design Eliminates Guesswork

One of Viking's most user-friendly innovations is the translucent outer wall of each cylinder. Unlike opaque steel tanks that require a separate fuel gauge — whose accuracy can vary with temperature — Viking's see-through construction lets you visually confirm your propane level at a glance. No guessing, no gauges, and no running out of fuel mid-cook or mid-trip unexpectedly.

A Critical Safety Distinction: No BLEVE Risk

Perhaps the most compelling argument for a Viking LPG tank is its behavior in a fire scenario. Traditional metal propane cylinders carry the risk of BLEVE — Boiling Liquid Expanding Vapor Explosion — a catastrophic failure mode where heat causes a pressurized metal vessel to rupture violently. Viking composite cylinders are engineered to eliminate this risk entirely. In a fire, the resin burns off and the composite liner melts, allowing LPG to “breathe” through the cylinder wall and burn in a slow, controlled manner rather than exploding.

Built for Demanding Environments

Viking LPG fuel tanks include an external Acme-threaded Type 1 OPD valve that prevents overfilling and blocks fuel release unless properly connected. Each cylinder features a wide, stable base to prevent tipping, an ergonomic collar with integrated hand grips for comfortable carrying and stacking, and a temperature operating range from -40°F to 149°F. Viking cylinders carry both DOT approval for the USA and TC approval for Canada, meaning they can be refilled at any reputable refilling station. A 2-year warranty backs each tank.

Whether you're outfitting a boat galley, stocking an RV, or setting up a portable outdoor cooking station, Viking composite LPG cylinders deliver a combination of safety, durability, and convenience that conventional metal tanks simply cannot match.