About this chapter: Chapter 30 addresses the fuel supply, ventilation, emergency shutdown equipment, fire protection and the operation and maintenance of industrial ovens, which are sometimes referred to as industrial heat enclosures or industrial furnaces. Compliance with this chapter is intended to reduce the likelihood of fires involving industrial ovens, which are usually the result of the fuel in use or volatile vapors given off by the materials being heated, or to manage the impact if a fire should occur.
Valves for fuel supply lines shall be located within 6 feet (1829 mm) of the appliance served.
Exception: Where approved and the valve is located in the same general area as the appliance served.
Safety data for Class A solvent atmosphere ovens shall be furnished on the manufacturer's nameplate. The nameplate shall provide the following design data:
- The solvent used.
- The number of gallons (L) used per batch or per hour of solvent entering the oven.
- The required purge time.
- The oven operating temperature.
- The exhaust blower rating for the number of gallons (L) of solvent per hour or batch at the maximum operating temperature.
Exception: For low-oxygen ovens, the maximum allowable oxygen concentration shall be included in place of the exhaust blower ratings.