How To Read Propane Tank Pressure Gauge. A propane gauge's pressure reading can give you an estimate of how much propane is in a gas form versus a liquid one, but it won't tell you how much propane remains in the tank. The majority of our tank gauges are rochester gauges that display to the number 80. the tank will normally be filled to approximately 80% to allow for heat expansion.
And when you read a tank gauge, that tells you the amount of liquid left inside. This device can be installed between the shutoff valve and the initial regulator and is particularly common on larger residential systems. Tanks with float gauges measure the volume of the tank as a percentage of the total capacity of the container.
Because propane is stored in a liquid state under pressure and expands in the presence of heat, we’ll only fill your tank to 80 percent of its water capacity.
This reflects that your tank is 20% full. The float gauge in a propane tank. If the gauge reads 50% on a 250 gallon propane tank, the tank has approximately, 125 gallons of propane. If your gauge shows 20%.