A.R.I. S-020 HC is a high-capacity, Automatic Air Release Valve Series installed on pressurized wastewater transmission systems. The valve releases accumulated air from a pressurized system, to optimize pipeline hydraulic efficiency by reducing head losses and improving flow. The unique body shape of the valve, enables a continuous air gap that separates the wastewater from the sealing mechanism and helps to avoid deposits or blockage.
Size Unit
Size range
Pressure rating
Working pressure range
A.R.I. S-022 HC
0.05 - 25 barA.R.I. S-024 HC
0.05 - 40 barWorking temperature
Maximum working temperature:
60° CMaximum intermittent temperature:
90° CAvailable construction materials
Stainless Steel, Cast Steel
End connection type
Valve connections: flanged or threaded BSP/NPT.
Flanged ends to meet various requested standards.
Optional add-on components
One-way Out – allows for air discharge only, prevents air intake.
A.R.I. S-020 HC
