UL 2586A-2015 pdf download

UL 2586A-2015 pdf download.Hose Nozzle Valves for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent(E0 – E85).
5.5 Blending options
5.5.1 Hose nozzle valves intended for use with dispensing equipment that provides for a variable blending option, at gasolineJethanol blends with nominal ethanol concentrations above 25 percent. shall be subjected to the Blending Cycling Test, Section 26.
5.5.2 Hose nozzle valves intended for use with dispensing equipment that provides for a fixed blending option, as gasoline/ethanol blends with nominal ethanol concentrations above 25 percent, shall be evaluated in accordance with (a) or (b):
a) It intended to be located after the blending option such that the hose nozzle valve is only subjected to the final blended fuel, then the Blending Cycling Test, Section 26. is not required.
b) If intended to be located at or before the blending option such that It is subjected to different gasoline/ethanol blend levels, the hose nozzle valve shall be subjected to the Blending Cycling Test, Section 26.
5.5.3 Hose nozzle valves intended for use with dispensing equipment that provides for a variable or fixed blending of gasoline/ethanol blends with nominal ethanol concentrations below 25 percent are considered acceptable without further evaluation for the blending option.
6 Bodies and Covers
6.1 A threaded section of a body intended for the connection of pipe shall have a section to serve as a wrench grip.
6.2 Pipe threads shall be In accordance with the Standard for Pipe Threads. General Purpose (Inch), ANSIASME B1.20.1.
Exception: Hose nozzle valves intended lot use in Installations where pipe fittings incorporate other than NPT type threads shall be permitted to be provided with pipe threads complying vwth a national pipe thread standard compatible with those fittings. The pipe Thread type shall be identified in accordance with 29.5.
6.3 The couplings provided on coaxial type vapor recovery hose assemblies shall have male 1-7/8
12-SAE straight threads when the inner hose is intended to dispense the liquid fuel into the vehicle and 1-1/4 inch – 18 SAE Straight. M34 by 1,5 metric thread or Inch – 11-112 NPT threads , as required when the outer hose is intended to dispense the liquid fuel into the vehicle. All linings are to be designed to lit the accessories connected to the hose couplings to form a leak tight connection. Coaxial type connections shall also have the dimensions as indicated in Figure 6.1.
6.4 lithe end connections of a vapor recovery fitting do not confomi to the requirements specified in (above), the installation instructions which accompany each fitting shall indicate the specific equipment which is to be connected to the fitting.
6.5 JoInts In a body formed of two or more parts shall be prevented from loosening as the result of the turning effort exerted by connecting or disconnecting piping. See the Deformation Test, Section 11
6.6 Openings for bolts or screws used for assembly shall not extend through the outer walls of a body into a liquid-handling section.
7 DIaphragms
7.1 A diaphragm shall be pmtected from damage.
7.2 Metal parts coming in contact with a diaphragm shall have no sharp edges, burrs, pcoections, or the like which cause chafing or abrasion of the diaphragm.
8 Springs
8.1 A spring employed in a dispensing device assembly to reduce the risk of leakage, or in a safety mechanism, such as is employed in an operating handle, shall:
a) Be protected against abrasion and corrosion; and
b) Demonstrate no loss in strength following subjechon to a compression force of three times that exerted by the spring in any position of its intended function.
8.3 In reference to 8.1(a), springs that are exposed to the fuels anticipated by these requirements shall comply with the applicable material requirements from Matenals. Section 5. Springs not exposed to fuels, but exposed to the environment, shall comply with the atmospheric corrosion requirements in 5.1.2.2.
9 Operating Mechanisms
9.1 Screws and nuts used to attach operating parts to movable members shall be upset or otherwise locked to prevent loosening.
9.2 A manually-operated mechanism of a hose nozzle valve shall provide free movement of all parts.