UL79 STANDARD FOR SAFETY Power-Operated Pumps for PetroleumDispensing Products

UL79 STANDARD FOR SAFETY Power-Operated Pumps for PetroleumDispensing Products 1 Scope 1.1These requirements cover products described in 1.2.Requirements for the installation and use ofthese products are included in the Flammable and Combustible Liquids Code, NFPA 30; the Automotiveand Marine Service Station Code,NFPA 30A; and the National Electrical Code, NFPA 70. 1.2These requirements cover electrically-，hydraulically-，or pneumatically-driven power-operatedpumps for use with petroleum products in the following applications: a) Self-contained flammable liquid dispensing devices and submerged pumps used in storagetanks that provide the petroleum product to remote control flammabie liquid dispensing devices.They are intended for operation at discharge pressures of 50 pounds per square inch (psig) (345kPa), or the marked maximum discharge pressure rating, when less, with the ambient and liquidtemperature within the range of minus 20°F(minus 29°C)-125°F(52°C). b)Flammable liquid dispensing systems to transfer the petroleum product from a tank or containerto a vehicle or another container. They are intended for operation at the marked maximumdischarge pressure, or less, with the ambient and liquid temperature within the range of minus 20°F(minus 29c)-125°F(52C). c) Vapor recovery applications for flammable liquid dispensing devices. They are intended tooperate under a vacuum at the inlet and a maximum discharge pressure of 50 psig (345 kPa), ormarked discharge pressure, whichever is less. 1.3 These requirements do not cover: a) Oil burner pumps，which are evaluated under the Standard for Pumps for Oil-BurningAppliances, uL 343. b)Pumps for engine-powered automotive equipment. c)Pumps for marine use which are evaluated under the Standard for Mechanically and ElectricallyOperated Fuel Pumps for Marine Use, UL 1130. d) Pumps for use in chemical, petrochemical, or petroleum processing plants; utility power plants;petroleum production facilities; pipeline pump stations; pipeline or marine terminals; or bulk plantdistribution and related facilities. e)Pumps used in mobile applications，such as on tank trucks，portable tanks,or portablecontainers mounted on vehicles. f) Pumps rated more than 600 volts.