Wastewater

In the Netherlands, wastewater is normally collected in combined sewer system and pumped to the WWTP through pressure mains. These pressure mains are a part of the system that did not receive much...

Air valves serve a number of very important functions, some of them, at times, conflict with each other. The overall purpose of air valves is to control air in liquid conveyance systems. This...

Gasses and aggressive materials in wastewater systems generate oftenmassive corrosion in fittings and accessories installed in the systems. Years of frustration from corrosion that “ate-up” air...

Naftali Zloczower, B.Sc.C.E., A.M.ASCE Licensed Civil Engineer (Israel) A.R.I. Flow Control Accessories Ltd., Kibbutz Kfar Charuv, DN Ramat Hagolan 2932, Israel; PH (972) 4 – 676 1746; FAX (972) 4...

The cost savings calculation is based on lowered head losses as a result of the installation and use of ARI air valves on the system. The results were gathered from tests that were performed over a...