Safety Valves

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Propane Tank Safety Valves and More

Turn to Amoco Heating/Smith Oil & Propane for propane, diesel, gas, and oil to the Saint Johns, MI area. We're a family-owned business serving our community since 1932. Call us today for fuel delivery services!

Take a look at propane tank equipment below.
Service Valve
Main shut-off valve for the service line. (Shuts off gas flow).
Regulator (Not Shown)
This device continuously regulates downstream pressure.
Fill Valve
Valve through which the tank is filled.
Fixed Liquid Level
Gauge used by driver to tell if the tank is properly filled.
Fuel Level (%) Gauge
Shows the percentage of the liquid inside of the tank.
Pig Tail (Not Shown)
Connects the service valve and the regulator.
Relief Valve
Protects the container from excessive pressure.
Vapor Return Valve
Used for tank evacuation.
Reading Your Tank’s Gauge
Most tank gauges read in percent. Refert to the chart below to convert the percent of propane in your tank to the gallons of propane in your tank.
If Your Gauge Reads: 120 Gallon Tank: 325 Gallon Tank: 500 Gallon Tank:
80% 96 260 400
70% 84 228 350
60% 72 195 300
50% 60 162 250
40% 48 130 200
30% 36 98 150
20% 24 65 100
10% 12 33 50
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Common Propane Tank Gauges:

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Amoco Heating/Smith Oil & Propane