How Do Liquid Propane Tanks Work?
Safe Storage of Propane Propane, whether burned as a gas or liquid, is stored in liquid form in a portable or stationary tank. Small portable tanks are used with gas grills and similar appliances, while stationary tanks are either mounted on legs and typically placed in the backyard of a home or business or buried underground. Stationary liquid propane tanks require care in installation, filling and maintenance. All propane tanks approved for use must be equipped with a standard series of valves. These include a fill valve for attaching a delivery hose from a truck; a vapor return valve to keep pressure within limits during delivery; a service valve, which converts the liquid gas to vapor; a relief valve to bleed off excess pressure in emergency situations; and a liquid withdrawal valve, which governs the amount of LP gas withdrawn from the tank. Two types of gauges must also be operative: a float gauge that shows the amount of propane in the tank and a fixed liquid level gauge that wa
