Vaporizers shall be indirect or direct fired and shall be constructed in accordance with the applicable provisions of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section VIII Unfired Pressure Vessels, 1973 Edition. They shall be marked to indicate the allowable working pressure and temperature.
If installed in a building, the building shall only be occupied as a vaporizer house. The heat-producing parts shall comply with Title 14M. Suitable means shall be provided to prevent the flow of liquid into the vapor area of the system. The following safety clearances, as defined in Section 15-24-250, shall be maintained:
Exposure | Minimum Distance (feet) |
Container | 10 |
Container shutoff valves | 15 |
Location where connections and disconnections are made or where LP gas is vented to the atmosphere in the course of transfer operations | 20 |
Nearest building or group of buildings or line of adjoining property. If rate over 100 gallons per hour, increase distance to 50 feet | 25 |
(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 10-7-20, p. 21791, Art. VI, § 62)