UL-87A:2015 pdf free download – STANDARD FOR SAFETY Power-Operated Dispensing Devices for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0一E85).
4.1.3 Devices having self-contained pumping units are judged on the use of suction lifts of not less than
2 feet (61 cm).
4.1.4 The construction shall be such that parts can be replaced or reassembled to function as intended after being dismantled.
4.1.5 The device shall incorporate provisions for support independent of piping, tubing, or conduit that may be connected thereto.
4.1.6 Fluid confining parts, except gaskets, seals, or hoses, shall be constructed of metallic materials.
4.2 Hose assemblies
4.2.1 A dispensing device may be furnished without a hose assembly. The dispenser shall be marked in accordance with 45.1.1(c) whether the hose assembly is furnished or not.
4.2.2 When the hose is located inside the housing, the assembly shall be such that electrical parts will not be sprayed with liquid in the case of hose leakage. In a weighted loop application, provision shall be made to prevent the weight from pulling on the hose coupling.
4.3 Strainers
4.3.1 A dispensing device shall be provided with at least one strainer. The strainer shall comply with Strainers, Section 12. The strainer or strainer assembly shall be constructed and located to permit the removal and replacement of the straining element without breaking liquid lines or disturbing any part of the dispensing device assembly and to permit ready access for cleaning with minimum spillage of fluid.
4.4 Electrically operated valves
4.4.1 A dispensing device for use in a remote control system, or a single inlet dual outlet self contained dispensing device, incorporating only one pump, shall have in each discharge line a shutoff valve that closes at the time or before the hose nozzle valve is hung in place on the device.
4.4.2 A power-operated dispensing device of the self contained single outlet type is not required to be equipped with a shutoff valve as specified in 4.4.1.
4.4.3 A plug or rotating disc type valve employing the bearing surface of the plug or disc as the liquid seal to the exterior of the valve body shall not be used in liquid lines.
4.4.4 An electrically operated shutoff valve shall close upon being de-energized, regardless of the position of any operating lever or reset handle.
4.4.5 Valves, as needed, are required in the construction of dispensing devices in order to maintain system priming thereby minimizing the risk of seal dry out.
4.5 Hose nozzle valve
4.5.1 A dispensing device may be furnished without a hose nozzle valve provided it is marked in accordance with 45.1.1(c).
4.6 Mechanically operated valves
4.6.1 A plug or rotating disc type valve, employing the bearing surface of the plug or disc as the liquid seal to the exterior of the valve body, shall not be used in liquid lines.
4.6.2 A petcock or other manually operated valve shall not be provided, which when open, permits the discharge of fluid.
5 Materials
5.1 Metallic materials
5.1.1 General
5.1.1.1 A metallic part, in contact with the fuels anticipated by these requirements, shall be resistant to the action of the fuel if degradation of the material will result in leakage of the fuel or if it will impair the function of the device. For all fuel ratings, see Corrosion due to fluid, 5.1 .2.1. For products rated for gasoline/ethanol blends with nominal ethanol concentrations greater than 25%, see Metallic materials — system level, 5.1.3.