Issue link: https://read.dmtmag.com/i/585738
15 Oil Prophets pressure should ensure each nozzle performs to the highest standard time after time. Prior to UL 2586, it was not mandatory for internal components of fuel nozzles to be tested outside of the nozzle. Called exceptions testing, manufacturers could bypass testing of internal components by simply submitting a nozzle and hoping the nozzle received UL approval. If the nozzle passed, all of its components passed as well. Today, UL 2586 prohibits exceptions testing and requires components be UL 157-approved before they can be used inside nozzles seeking UL 2586 approval. By controlling the components used within nozzles, Underwriters Laboratories aims to eliminate inferior gaskets and seals that fail because of high alcohol content of ethanol blends. In addition to passing specific tests, each UL 2586-approved nozzle must be marked for the appropriate fuel-type usage. Installers of the new nozzles will be able to quickly and easily identify the appropriate fuel-type and origin of each nozzle, helping to keep users safe from the installation of incorrect or incompatible hanging hardware. To further designate the classification of hanging hardware, UL 2586 is composed of three nozzle-specific test standards: UL 2586 is the nozzle-specific test • standard for gasoline and gasoline/ ethanol blends up to 10 percent, diesel fuel, biodiesel fuel, diesel/ biodiesel blends with nominal diesel concentrations up to 5 percent, kerosene and fuel oil. UL 2586A is the nozzle-specific • test standard for gasoline and gasoline/ethanol blends with nominal ethanol concentrations up to 85 percent. UL 2586B is the nozzle-specific • test standard for diesel fuel, biodiesel fuel, diesel/biodiesel blends with nominal biodiesel concentrations up to 20 percent. Many retailers have complained of the large gap in compatibility for ethanol content between UL 2586 and UL 2586A. In an effort to create lasting standards, Underwriters Laboratories chose levels based on predicted increases of ethanol concentrations. While it may seem unfair for today's stations that carry E15 blends, these standards were created to ensure hanging hardware met the functionality and safety needs of retailers and consumers well into the future. What Changes Will Retailers Notice? Beyond the visible markings, retailers will probably only notice one other change: hold open racks can only be installed on nozzles that have a "no pressure, no flow device" or an interlock. By removing the ability of a nozzle to unintentionally dispense fuel in pre-pay situations, UL 2586 should increase the overall safety at the pump and decrease fuel waste. What Happens to Existing Nozzles? UL 2586 may not require any immediate action by a fuel retailer. OPW confirmed with Underwriters Laboratories that any nozzles currently in use or any unused nozzles manufactured prior to April 30, 2015, could be used until all inventories are consumed. The UL Listing for nozzles manufactured prior to April 30, 2015, remains in effect for the life of the nozzles. Conclusion After several years of researching, testing, and gathering input from countless sources, Underwriters Laboratories has created a much- needed update to manufacturing guidelines for fueling nozzles. Through the creation of UL 2586, retailers can rest assured that products manufactured today will be capable of safely handling the fuels of tomorrow. About the Author: Matt Lauber holds a degree in mechanical engineering and is currently the Product Manager of Aboveground Hanging Hardware for OPW Retail Fueling. S PCMA , . 1500 Old Fannin Rd. Brandon, MS 39047 601.992.4444 105 Katherine Dr., Bldg Flowood, MS 39232 601.939.7700 1913 Hwy. 82 W. Greenwood, MS 38930 662.455.9900 7116 Siwell Rd. Byram, MS 39212 601.372.5554 2010 Oak Grove Rd. Hattiesburg, MS 39401 601.268.8838 2270 McCullough Blvd. Tupelo, MS 38801 662.844.1944 6645 Hwy. 98 W. Ste. 1 Hattiesburg, MS 39402 601.264.8494 www.nowellagency.com