Expansion Relief Valve
Morrison Brothers
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Valves, Drop Tubes & Vents
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1/2 Inch NPT Ductile Iron 50 PSI Expansion Relief Valve With Stainless Cap
Item No. 076DI-0200AV
Allows excess pressure caused by thermal expansion of the liquid to return to the AST tank.
3/4 Inch Tee Double Outlet Vent Threaded
Item No. 155-0100AV
Aluminum t-style vent used primarily on small fuel oil storage tanks
1 Inch Double Outlet Vent Female NPT
Item No. 155-0200AV
Aluminum t-style vent used primarily on small fuel oil storage tanks
1-1/2 Inch Threaded Double Outlet Vent Female NPT
Item No. 155-0400AV
Aluminum t-style vent used primarily on small fuel oil storage tanks
2 Inch Tee Double Outlet Vent Threaded Female NPT
Item No. 155-0500AV
Aluminum t-style vent used primarily on small fuel oil storage tanks
3 Inch Threaded Double Outlet Vent Female NPT
Item No. 155-0600AV
Aluminum t-style vent used primarily on small fuel oil storage tanks
2 Inch Updraft Vent
Item No. 354-0200AV
Open vent design used on underground and above ground tanks
4 Inch Updraft Vent
Item No. 354-0400AV
Open vent design used on under ground and above ground tanks
3 Inch Updraft Vent Cap
Item No. 354-0300AV
Open vent design used on under ground and above ground tanks
1/2 Inch NPT Ductile Iron 25 PSI Expansion Relief Valve With Stainless Steel Cap Spring And Ball
Item No. 078DI-0100AV
Allows excess pressure caused by thermal expansion of the liquid to return to the AST tank.
1/2 Inch NPT Ductile Iron 40 PSI Expansion Relief Valve With Stainless Steel Cap Spring And Ball
Item No. 078DI-0200AV
Allows excess pressure caused by thermal expansion of the liquid to return to the AST tank.
1/2 Inch NPT Ductile Iron 100 PSI Expansion Relief Valve With Stainless Steel Cap Spring And Ball
Item No. 078DI-0300AV
Allows excess pressure caused by thermal expansion of the liquid to return to the AST tank.