E85 & Bio-Diesel CompatibleEmergency 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 pin. Pressure inside the tank forces the cover to lift up off the vent seat, allowing air to exhaust. The center pin guides the movement. When pressure falls the cover lowers back down onto seat and vent is automatically reset.We carry the full Morrison Line call us for anything not listed. Catalog page 128
Item #
MO244OM0150AV
Manufacturer
Morrison Bros.
Shipping Weight
Size
Opening Pressure Setting
Mounting Connection
Estimated CFH @ 2.5 PSI
Our Price:
$98.21
Volume Pricing
$94.27 2-5
$90.52 6 or more
The 244 emergency vent must be properly sized and selected for each specific tank application in order to meet the proper "venting capacity" requirements. This emergency vent is for "emergency pressure relief only" and must be used in conjunction with a "normal vent" or pressure vacuum vent such as a Morrison 354, 548, 748 or 749.
When properly sized for the tank, this vent will conform to the requirements of NFPA 30, 30A, UL 142, UL 2244, API 2000, and PEI RP200.
Available on 4", 6" and 8" female threaded body and 2" male) specify "With Screen", #3 mesh stainless steel screen used for theft control. Screen is NOT intended to function as a flame arrester.
Emergency vent should be set higher than the normal vent so the normal vent operates first. Use 16 oz. to comply with pressure decay test.
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