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143A Pressure / Vacuum Emergency Vent

Emergency vent with both pressure and vacuum relief for use on aboveground storage tanks. Emergency vacuum relief can be utilized as a backup to the "normal" vent. Opening pressure and vacuum settings are approximate.

WARNING!

The 143 Series emergency vents are for "emergency pressure relief only" and must be used in conjunction with a "normal vnet' or pressure vacuum vent, such as a Morrison 354, 548, 748, or 749.  The 143 Series emergency vents must be properly sized and selected for each specific tank application in order to meet the proper "venting capactity" requirements.

Catalog page 137

Item #

MO143A0100AV

Manufacturer

Morrison Bros.

Shipping Weight

44 lbs.

Size

8"

Opening Pressure Setting (oz/in2)

8.00

Venting Capacity (CFH) (@2.5 PSI)

509,550

Mounting Connection

Flanged

Our Price:

$349.80

Volume Pricing

$339.30    3 or more



  • Body: Aluminum
  • Cover: Cast Iron (except 10" - 2.5 oz. 143A is aluminum)
  • Vacuum Assembly and Seat Ring: Brass
  • Vacuum Screen: Type 304 Stainless Steel


Additional 143A Pressure / Vacuum Emergency Vents
SKUSizeOpening Pressure Setting (oz/in2)Venting Capacity (CFH) (@2.5 PSI)Mounting ConnectionPriceQty
8" 8.00 509,550 Flanged $349.80
8" 16.00 509,500 Flanged $394.80
10" 8.00 808,350 Flanged $522.16
10" 16.00 808,350 Flanged $587.26