Cryogenic Superinsulation

Each tank is wrapped with multiple layers of insulation, which reflects heat away from the tank. The wrapped inner tank is enclosed by an outer tank and a vacuum is drawn between the walls. This combination of multi-layer insulation and vacuum is called superinsulation, and has nearly double the R rating of vacuum only insulation.

Economizer Regulator

When pressure in the tank rises above a preset number (typically 90 to 120 psi), the economizer regulator vents vapor into the fuel line. This increases vehicle tank hold time to 7 to 10 days and also maximizes LNG per gallon mileage performance.

LNG Fill Fitting

Fuel fitting only opens after fuel nozzle is positively locked in place. Fitting closes when nozzle is released to prevent any fuel loss.

Fuel Contents Gauge

Alerts driver or fueler to the fuel levels in the vehicle tank. Fuel gauge can be placed by the vehicle tank or in the truck cab.

Dual Relief Valves

Each tank has a relief valve set at 230 psi and a back up relief valve set at 350 psi should the first valve fail.

Fill Check Valve

The check valve at the fuel fitting prevents LNG from escaping should the fill fitting fail or if the vehicle is driven off without the nozzle being disconnected.

Product Isolation Valve

Valve shuts off the flow of LNG to the engine when a vehicle is being serviced.

Excess Flow Valve

Shuts down LNG flow to the engine in case of a fuel line break between the LNG tank and the engine.

In-line Check Valve

Prevents the reverse flow of high pressure fuel (after vaporization) back into the LNG tank.

Tank Pressure Gauge

Alerts fueler to the actual pressure in the tank. If pressure is too high it can be vented back to the bulk storage tank through the LNG dispensers.

Overpressure Regulator (Optional)

Controls the pressure of the fuel to the engine. Typically set at 90 to 140psi depending on the engine.