A.R.I is introducing ARIavCAD 2009, a software program for the sizing and location of air valves. The software is user-friendly, professional and helps its users to save money and time in choosing, sizing and locating the proper air valves for their pipelines.ARIavCAD 2009 will allow the design engineer to develop a graphic display for the variables that are needed to determine the number and types of air valves their systems will need. Choosing the proper location and the suitable valves will contribute to the efficient and smooth performance of the system. The software will also display a table with a summary of air valves required, classified by size and model.
K-060 VB – High Flow Vacuum Breaker for Wastewater and Water Supply Applications - protects the system by opening quickly to automatically admit large quantities of air into the system at and below internal atmospheric pressure. The K-060 VB is suitable for water conveyance systems and wastewater conveyance systems.
The Underground Systems combine the reliable and efficient properties of the A.R.I. air valves for wastewater and water supply with the added feature of a sub-surface valve that can be buried below ground. Since the 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.
The D-060 Combination Air Valve is designed to automatically release small pockets of air to the atmosphere as they accumulate along a pipeline or piping system when it is full and operating under pressure and to automatically discharge or admit large volumes of air during the filling or draining of a pipeline or piping system. Now in 1" (25 mm) also!!
The phenomenon of pressure demeanor and fluctuation in water and wastewater systems pose a challenge to the academic world and to the world of industry and water. Many studies have been conducted in recent years on issues such as water-air behavior, hydraulic transients and water column separation, cavitational hammer etc., which indicate a need to control the flow of air between the pipe interior and the atmosphere.Researchers and consultants in the field of hydraulic surge around the world, some of whom are among the leading experts in the field, do not fully recognize the air valve as a tool in their arsenal for the prevention and / or alleviation of surge in water and wastewater transmission systems. Among them, there are those who believe that air valves cause surges in the systems.Although there are many symposia in the world that deal with the subject of surge phenomena in liquid transmission systems, there has yet to be a symposium that deals with the effect of air and air valves on the surge phenomena.
A.R.I Flow Control Accessories Ltd has risen to the challenge. The company, with extensive experience in developing, manufacturing and marketing air valves as means for dealing with the surge phenomena in water and wastewater pipelines, has initiated a comprehensive international symposium which will take place in April. The symposium, whose primary objective is to exchange expert knowledge and awareness with the participants on the importance of advanced effective air valves in the prevention or reduction of the impact of surge on water and wastewater systems.Quite a few leading professionals from around the world have consented to participate in this groundbreaking symposium.
The School of Engineering at the Kinneret College on the Sea of Galilee, will host the second day of the conference to be held in the auditorium at the college. The conference at the college will be open to the interested public. Mr. Shimon Tal, President of the Israel Water Association and chairman of WATEC, formerly, Water Commissioner of Israel and Chief Engineer of Mekorot, will be the moderator of the two day conference. Among the topics that will be discussed at the symposium are:
Hydraulic transients, water column separation and down-surges.
Water loss and contaminant intrusion due to pressure transients and down-surges.
Cavitational Hammer - the formation and collapse of vapor cavities and the consequent extreme upsurges.
The behavior of air in pressurized pipelines.
The effect of air pockets on the occurrence and intensity of upsurges.
Basics of air valve types and their purposes and function.
Prevention of air pocket accumulation.
Control of down surges and cavitation using air valves – stand-alone and in conjunction with other means.
Modeling of air valves in hydraulic transient software – one-phase modeling and its limitations – possibilities for two-phase and multi–phase modeling.