Fuel & Oil Tank Vents

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Envirosafe™ Above-Ground Fuel Systems carries a full line of fuel tank vents for above ground fuel tanks and other bulk fueling systems.We carry fuel updraft vents for the dispensing of a variety of fuels including gas, oil, methanol, diesel, and alternative fuels.


fuel tank vent

244 Series Emergency Vent

Emergency vent (pressure relief only) used on aboveground storage tanks, as a code requirement that helps prevent the tanks from becoming over-pressurized and rupturing if exposed to fire. UL listed except for 2″.

The 244 emergency vent consists of a body and a black powder coated cover (2″ not powder coated) that moves up and down on a center rod. Interior pressure of the tank forces the cover to elevate off the vent seat, allowing heated air to escape. The center rod guides the movement. When pressure falls, gravity forces the cover back down onto seat and the vent is automatically reset.

Code Compliance
When correctly sized for the tank, this vent will meet to the requirements of NFPA 30, 30A, UL 142, UL 2244, API 2000, and PEI


fuel tank vent

354 Series Updraft Vent

“Open” vent used on underground and aboveground tanks for motor fueling. Vent allows tank to “breathe” during filling/dispensing operations.

Construction Details
Body… aluminum
Cap…aluminum
Screen…40 mesh brass


oil tank vent

155S Series Double Outlet Vents

Aluminum T-style vent used primarily on small fuel oil storage tanks. Outlet ports on either side of the inlet with 20 mesh stainless steel screen keeps debris out of the airway.


gas tank vent

351S Series Flame Arrester

Used in conjunction with a “normal” vent on aboveground storage tanks. Open (non-pressure type) flame arrester to help prevent the transmission of heat and/or an ignition source into the tank.

Construction Details
Body…cast iron
Cover…cast iron
Cap… brass
Arrester Plates…stainless Steel

Standard Features

  • Gauge opening cap.
  • Vapor relief capacity at 2.5 PSI = 22,000 CFH

diesel tank vent

351S Series Flame Arrester with 748A Vent

Used in conjunction with a “normal” vent on aboveground storage tanks. Open (non-pressure type) flame arrester to help prevent the transmission of heat and/or an ignition source into the tank.
Flame arrester with 748A Vent…used in conjunction with a Fig. 748A pressure/vacuum vent on aboveground storage tanks. Pressure type flame arrester to help prevent the transmission of heat and/or an ignition source into the tank.


Call us at 800-555-4754 for the fuel tank vent you need. We also carry flame arresters to use with the vent. They are suitable for the dispensing of gasoline, diesel, bio fuels and more. We offer low prices and quick shipping on all fuel tank vents.

All Rights Reserved. Memco, Inc. 901 12th St, Clermont, FL 34711 352-241-2302 Toll-Free 800-555-4754 Fax: 352-241-9753
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