A.R.I. system solutions protect the pipeline from destructive forces such as surge, pressure transients and entrapped air. These are the leading causes of pipeline bursts, fractures and cracks which cause irreparable environmental damages such as water losses from leaks, pathogen and contaminant intrusion through pipe cracks and energy losses from inefficient flows. A.R.I. is committed to solving these problems by providing a system analyses that helps reduce surge related phenomena and select the most efficient A.R.I. air valves and size and locate them on the liquid transmission system.



A.R.I. air valves are an integral part of a water transmission system. These air valves will discharge air from a non–pressurized pipe enabling the efficient filling of the pipeline; continuously release air from a pressurized system, preventing the build-up of air pockets in the pipeline and admit large amounts of air into the system when vacuum conditions occur, protecting the pipeline from pressure transients and possible collapse.



A.R.I. air valves for wastewater are specially designed to operate with liquids containing solid particles such as wastewater and effluents and liquids which can cause chemical build-up. The valve builds an air gap which separates the liquid from the sealing mechanism, ensuring optimum valve operation.


Underground Units

The SB unit is a complete product package that combines the reliable and efficient properties of the A.R.I. combination air valve  with the added feature of a sub-surface valve that can be buried below ground. A specially designed horizontal sliding disc valve - situated at the base of the SB assembly - allows for the air valve disconnection and maintenance from ground level. This shut-off valve is equipped with a safety mechanism, enabling disconnection and removal of the air valve from its sub-surface housing, even when the system is under pressure. Since service and maintenance operations of the unit are performed entirely from the surface, there is no need for safety considerations associated with confined space entry.