Expansion Relief Valve
Check valve
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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.
2 Inch Angle Check Valve - Single Poppet Spring Loaded
Item No. 137-0300AV
Fitted with a light spring & soft seat made for standard check valve applications
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
1 Inch Single Poppet Vertical Check Valve
Item No. 158A-0400AV
Single poppet, one-way check valve used to prevent backflow in supply lines or used as a prime holding valve in suction systems.
1 1/2 Inch Buna Union Check Valve With Screen
Item No. 200AS-15
Easily inserted onto existing union fittings in suction systems
2 Inch Pressure Relief Nipple Check Valve Bronze Viton Seats
Item No. 212VPR-20-3650
Mounted in fuel lines at the submersible pump to hold the prime and prevent premature tripping of mechanical leak detectors
1-1/2 Inch Open Vent Upward Aluminum
Item No. 23-0044
Installed on the top of vent pipes from underground or aboveground fuel storage tanks always open to the atmosphere to allow any pressure or vacuum in the tank to vent
1-1/2 Inch Female NPT Brass Swing Check Valve With Nitrile Gasket
Item No. 246A-0100AV
Designed to prevent backflow in horizontal piping systems. Swing check valve allow liquid to flow in a single direction
2 Inch Female NPT Brass Swing Check Valve With Nitrile Gasket
Item No. 246A-0200AV
Designed to prevent backflow in horizontal piping systems. Swing check valve allow liquid to flow in a single direction
2 Inch Swing Check Valve - Threaded Brass With Thermal Expansion Relief At 25 Psi
Item No. 246A-0600AV
Designed to prevent backflow in horizontal piping systems. Swing check valve allow liquid to flow in a single direction
2 Inch Threaded Ductile Iron Swing Check Valve
Item No. 246ADI-0500AV
Designed to prevent backflow in horizontal piping systems. Swing check valve allow liquid to flow in a single direction
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
2 Inch Slip-On Adapter For Series 523 Vents
Item No. 523SA-1002
Converts a 523V and 623V vent to a 2 inch slip on vent
