Used on above ground storage tanks in fuel suction line to hold back fuel to prevent accidental emptying of above ground storage tanks (Hose split/drive off) .

• Brass body, 3 bolt fixing cap, o-ring seal.
• 2" ICV Petrol/Diesel.
• To choose the correct spring pressure (psi), measure from ground level to the top of the tank (ft).
  6ft = 3 psi (ACV.3)  8ft = 4 psi (ACV.4) 10ft = 5 psi (ACV.5)  12ft = 6 psi (ACV.6)