A.R.I. D-040 is a reduced bore Combination Air Valve Series. Installed on liquid transmission systems, the Air Valve is designed to improve hydraulic operation by protecting the pipeline, increasing pipeline efficiency and reducing energy requirements.
IOM (PDF)
BIM Models
Size Unit
Size range
Pressure rating
Working pressure range
A.R.I. D-040
0.1 - 10 bar, 0.2 - 16 barA.R.I. D-040 L
0.02 - 6 bar, 0.02 - 10 bar, 0.05 - 16 barA.R.I. D-040 C
0.1 - 10 bar, 0.2 - 16 barWorking temperature
Maximum working temperature:
60° CMaximum intermittent temperature:
90° CAvailable construction materials
Reinforced Nylon, Polypropylene, Stainless Steel, Ductile Iron, PVDF, Super Duplex
End connection type
Threaded male BSPT/NPT
Optional add-on components
One-way Out attachment, allows for air discharge only, prevents air intake.
One-way In attachment, allows air intake only, not allowing air discharge.
Non-slam, discharge-throttling attachment, allows full air intake, throttles air discharge (2” only).
A.R.I. D-040
A.R.I. D-040 L
A.R.I. D-040 C
A.R.I. D-040 C
Animation of A.R.I. D-040 operation
Maintenance Procedure A.R.I. D-040
