D-090 Underground Air Valve System
 Save manhole costs with the new A.R.I UNDER GROUND AIR VALVE designed to provide reliable solutions for special needs as:
- Better freeze protection.
- Savings in installation costs.
- Installations under important crossings: Roads, pavements, buildings.
- The valve shell is made of composite corrosion free materials.
Features
- Combination Air Valve combines three functions of operation:
- Discharges air at high flow rates while the system is filled with water.
- Admits air into the system at high flow rates during system drainage.
- Releases entrapped air that accumulates at peaks when the system is under pressure.
Working range: 0.1 – 10 bars, 0.2 – 16 bars.
Working Temp. : 600 C
Connections: Threaded 2” , Flanged 50mm, 80mm, 100mm
Flange standard : BS 10 1947, BS-4504 (DIN- 2501)
Materials : The air valve is made of corrosion resistant materials.
Integral shut-off valve : Shuts off automatically when unmounting the air valve for maintenance purposes.
Drainage System : A special one-way outlet drains the water from the valve box and does not admit water in.
Eight Different Installation Lengths:
500 mm, 755 mm, 1055 mm, 1355 mm, 1555mm, 1830mm,2135mm, 2440mm.
Advantages and Benefits
- Dynamic design allows high velocity air discharge, preventing premature closing.
- A.R.I patented rolling Seal Mechanism:
- Dramatically reduces obstruction by debris.
- The automatic function discharges high air flow rates of up to 160m3/h.
- Self - cleaning mechanism.
- Low maintenance costs.
- Air valve box made of P.V.C – according to high quality standard.
- Light weight and compact silhouette.
Options
- Vacuum - Air discharge only.
- “Non-Slam” System.
- D-090-P for corrosive fluids.
- D-090-P U : confirmed for NSF 61
- D-090-P LP for low pressure
- Internal freeze protection.
- Service Tap
 Click here to download Brochure (894 KB)
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