A.R.I. D-040

The A.R.I. D-040 is a reduced bore Combination Air Valve installed on liquid transmission systems. It is designed to improve hydraulic operation by protecting the pipeline, increasing pipeline efficiency, and reducing energy requirements. The valve is available in sizes DN15 - DN50 (1/2" - 2") and offers pressure ratings of PN6, PN10, and PN16. Working pressure ranges vary from 0.1 - 10 bar to 0.2 - 16 bar, depending on the model. The maximum working temperature is 60°C, with intermittent temperatures up to 90°C. Construction materials include Reinforced Nylon, Polypropylene, Stainless Steel, Ductile Iron, PVDF, and Super Duplex. End connections are threaded male BSPT/NPT. Optional add-on components include One-way Out attachment, One-way In attachment, and Non-slam discharge-throttling attachment.