// CODE SNIPPET
P-907.2 Relief Discharge
JUMP TO FULL CODE CHAPTER
The discharge connection from relief or surge tanks shall be connected and arranged so as to provide a trapped water seal not less than 12 inches in depth within the relief or surge tank. Where there is danger of backflow or back pressure, effective measures shall be taken to prevent backflow in accordance with the requirements of this code.
Related Code Sections
P-907.2 Soil and Waste Piping, Relief Discharge
The discharge connection from relief or surge tanks shall be connected and arranged so as to provide a trapped water seal not less than 12 inches ...
1006.6 Boilers, Water Heaters and Pressure Vessels, Safety and Relief Valve Discharge
Safety and relief valve discharge pipes shall be of rigid pipe that is approved for the temperature of the system. High-pressure-steam safety ...
2018 Philadelphia Mechanical Code > 10 Boilers, Water Heaters and Pressure Vessels > 1006 Safety and Pressure Relief Valves and Controls > 1006.6 Safety and Relief Valve Discharge
5705.2.1 Flammable and Combustible Liquids, Pumps
Where positive-displacement pumps are used, they shall be provided with pressure relief discharging back to the tank, pump suction or other approved ...
2018 Philadelphia Fire Code > 57 Flammable and Combustible Liquids > 5705 Dispensing, Use, Mixing and Handling > 5705.2 Liquid Transfer > 5705.2.1 Pumps
M1412.4 Heating and Cooling Equipment and Appliances, Pressure-Relief Protection
Absorption systems shall be protected by a pressure-relief device. Discharge from the pressure-relief device shall be located where ...
2018 Philadelphia Residential Code > 14 Heating and Cooling Equipment and Appliances > M1412 Absorption Cooling Equipment > M1412.4 Pressure-Relief Protection
P2804.6 Water Heaters, Installation of Relief Valves
valve discharge pipe. Between a relief valve and a tank. Between a relief valve and heating appliances or equipment ...
2018 Philadelphia Residential Code > 28 Water Heaters > P2804 Relief Valves > P2804.6 Installation of Relief Valves