General

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 are an important tool for surge dampening and suppression. Accurate air valve specification, location and sizing are vitally essential for effective, efficient liquid flow and for...

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...

Many pipelines suffer from cracks and faulty joints, seals and gaskets, resulting in water losses.

Air pockets can develop in a pipeline by bubble Introduction entrainment through the action of pump suction and by air release from solution as the water pressure reduces. The former can arise from...

This paper deals with analysis of energy losses related to large undissolved air pockets in pipelines for water transportation.

Air valves are an important tool for surge dampening and suppression.

In the Netherlands, wastewater is collected in municipal areas and transported to large centralised WWTPs by means of an extensive system of pressure mains. Over the last decades these pressure...

air valves are integral part of long water transmission mains and are essential for removal of bulk and residual air during initial and subsequent filling operations. Air valves are also becoming...