Direct fired vaporizers shall be equipped with the following safeguards:
1. Every direct fired vaporizer shall be marked with the name of the manufacturer, the rated B.T.U. input to the burners, the area of the heat exchange surface of the vaporizer in square feet, the outside surface area in square feet, and the maximum vaporizing capacity in gallons per hour.
2. Direct fired vaporizers shall be separated from storage vessels, buildings, streets, and adjacent property lines that may be built upon in accordance with Table 57.5003.2.4.3.5.
3. Every direct fired vaporizer shall be located not less than 50 feet from filling connections.
4. Direct fired vaporizers shall be provided with a means for shutting off the fuel to the main burner and pilot from outside the vaporizer housing.
Vaporizing Capacity In Gallons Per Hour | Buildings, Streets, & Adjacent Property Lines That May Be Built Upon | Storage Vessels |
Less Than 25 | 25 Feet | 5 Feet |
25 – 100 | 40 Feet | 5 Feet |
More Than 100 | 50 Feet | 5 Feet |