Publications

November 30, 2011

Precise control of water supply systems by plunger valves

Plunger valves are special control valves, designed specifically for control tasks in water supply. Unlike gate valves and butterfly valves, which are mainly used as shut-off valves only in pipeline networks, plunger valves meet the special requirements of control operation.

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April 15, 2011

Butterfly valves in municipal water management

Butterfly valves of various types have been manufactured for more than 50 years. They have stood the test of time in a wide variety of operating conditions throughout the world. Without butterfly valves modern water management would be inconceivable. Butterfly valves play an important role wherever water is stored, transported, treated and distributed. What counts most are durability and decades of functional reliability. Valves used in water management have to withstand enormous loads, high water pressures, critical flow velocities as well as extreme temperatures and weather conditions, whether in tropical climates or in the desert. Therefore the materials of construction have to be just right.

Industrial Valves gives an overview of using butterfly valves in municipal water management in its issue 03/2010.

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April 14, 2011

Comprehensive Pressure Management as a driver of sustainable waterloss management

When one takes a look at the drinking water supply along the water industry value chain – from sourcing to consumption – a transportation problem comes to light. The quantity of wa-ter produced at the beginning does not fully reach the consumer due to various influencing factors. These include aging and leaking pipe networks, incorrectly installed valves, leaking flange connections, overflowing elevated tanks and an unsuitable control strategy for individ-ual components in the water distribution network.

The International Journal of Water-Management "Bluefacts" explains the advantages of a pressure management system.

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April 13, 2011

Prague's historic city centre now a safer place

CFN reports about the installation of VAG Knife Gate Valves and Flap Valves to safe the historic city center of Prague. After a disaster which killed 17 people, the floods can now be controlled thanks to VAG valves.

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April 12, 2011

A modern, global solution provider

The European Business Journal gave an account of the VAG subsidiary JMA.

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April 11, 2011

Intelligent pressure management reduces water losses and minimizes pipe brakes

Leaks in water pipes and leaking valves in urban water distribution systems and pipeline networks, mainly in developing and threshold countries, are the reason for water losses of up to 50 percent in relation to the water quantity being produced in the water works.

The article of the "Industrial Valves 2009" presents an effective pressure management on the basis of an intelligent control system, by means of which water losses can be reduced to a stable and economically rational level.

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