‘Garter Vent Cap’ – ‘A Robust Line of Defense’
Emcara Gas Development is promoting a vent cap designed to keep outside water and other foreign matter from impeding the function of pressure relief devices on compressed natural gas fuel systems. PRDs are essential devices that allow gas to vent when pressure becomes dangerously high, as in the case of fire.
“The most common cause of PRD failures is the simple problem of water getting into the outlet lines of the device,” Emcara says. Its answer? The “Garter” vent cap.
‘A Strong Seal’
“The Garter provides a strong seal between itself and the vent line, ensuring that water and other materials do not enter the system, while at the same time staying protected from UV light deterioration, pressure sprays, and other actions that have caused plastic or other caps to fly off or become damaged,” states a release.
The Garter cap is designed with a poppet action to allow gas to escape – it then “quickly re-seals itself.” The Garter cap releases between 5 and 10 psi of pressure, allowing designers to “do away with weep holes, which is another possible area for water to enter the system.”
Guelph, Ont.-based Emcara Gas Development, Inc. was established in 2010. The firm works to bring new and innovative ideas to the alternative fuels industry with “devices and solutions that increase safety and performance, while reducing overall costs.” Emcara’s product portfolio includes long-trigger PRDs, balanced actuator valves, and ventilation caps.
Further, the company claims a “pipeline of new products in development that will assist in the growth and development of the alternative fuel industry.”
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Source: Emcara Gas Development with Fleets & Fuels follow-up