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// CODE SNIPPET

1009.3 Open-Type Expansion Tanks

Mechanical Code 2018 of Maryland > 10 Boilers, Water Heaters and Pressure Vessels > 1009 Hot Water Boiler Expansion Tank > 1009.3 Open-Type Expansion Tanks
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Open-type expansion tanks shall be located not less than 4 feet (1219 mm) above the highest heating element. The tank shall be adequately sized for the hot water system. An overflow with a minimum diameter of 1 inch (25 mm) shall be installed at the top of the tank. The overflow shall discharge to the drainage system in accordance with the International Plumbing Code.

Related Code Sections


1009.3 Boilers, Water Heaters and Pressure Vessels, Open-Type Expansion Tanks
Open-type expansion tanks shall be located not less than 4 feet (1219 mm) above the highest heating element. The tank shall be adequately sized ...
Mechanical Code 2018 of Maryland > 10 Boilers, Water Heaters and Pressure Vessels > 1009 Hot Water Boiler Expansion Tank > 1009.3 Open-Type Expansion Tanks
1205.1.6 Hydronic Piping, Expansion Tanks
Shutoff valves shall be installed at connections to nondiaphragm-type expansion tanks ...
Mechanical Code 2018 of Maryland > 12 Hydronic Piping > 1205 Valves > 1205.1 Where Required > 1205.1.6 Expansion Tanks
1210.7.6 Hydronic Piping, Expansion Tanks
Shutoff valves shall be installed at connections to nondiaphragm-type expansion tanks ...
Mechanical Code 2018 of Maryland > 12 Hydronic Piping > 1210 Plastic Pipe Ground-Source Heat Pump Loop Systems > 1210.7 Shutoff Valves > 1210.7.6 Expansion Tanks
42.9.9 Refueling, Cargo Tank Fueling Facilities
The provisions of 42.9.2 shall not prohibit the dispensing of Class II liquids in the open from a tank vehicle to a marine craft located ...
State of Maryland Fire Prevention Code > 42 Refueling > 42.9 Marine Fueling > 42.9.9 Cargo Tank Fueling Facilities
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