Butterfly valves

April 2009 Valves, Actuators & Pump Control

Cooling circuit for industrial water.

In the production facilities of a reputable research institute there are different production sectors independent of each other where special microchips and test wafers for the electronics industry are manufactured. All the facilities are hermetically separated from the outside world in order to prevent the contamination of the wafers and microchips. The heat resulting from the different production processes must be adequately dissipated. Care has to be taken that the cooling water does not cause contamination of the cooling installation and the clean rooms and protection against corrosion must be provided.

Plant technology

The pipework is made of a stainless steel alloy and de-ionised water is used as the heat transfer medium. The heat exchanger is installed on the roof of the building. The pump and distribution station as well as the buffer tanks for warm and cold water are in the basement. The pipework is located in supply channels; all pipe sections, pumps and production sectors are controlled by manually operated valves. Certain process control systems are equipped with motorised control valves.

The right valve technology

For the pump and production sectors the GEMÜ Desponia, DN 65-200 butterfly valves with a cast iron body (LUG), EPDM liner and stainless steel disc, manually gear operated were chosen. In the process control systems the butterfly valves were fitted with a motorised actuator (AUMA SAR 07.5).

For more information contact Keith Hedges, GEMÜ Valves Africa, +27 (0)11 708 6299, [email protected], www.gemue.de

Share this article:

Ball valves and actuators optimise HVAC performance
Schneider Electric South Africa Valves, Actuators & Pump Control
Schneider Electric offers the full range of innovative SpaceLogic and EasyLogic ball valves and actuators. These cutting-edge products are designed to optimise HVAC system performance, ensuring comfort and energy efficiency in commercial and residential buildings.

Read more...

Alfa Laval expands hygienic valve portfolio
Valves, Actuators & Pump Control
Alfa Laval is expanding its hygienic valve portfolio by introducing the Unique SSV pressure relief valve and the Leakage Detection butterfly valve, alongside new smaller sizes of the Unique Mixproof CIP and Unique Mixproof process valves.

Read more...

Preparing pump systems for adverse weather conditions
Valves, Actuators & Pump Control
As the severity of storms in South Africa increases, so has the rush of sediment-laden water become a major issue and a significant challenge for irrigation. When sediment levels rise to just 10 grams per litre or more, the risk of pump wear and dam silting increases dramatically.

Read more...

High-flow solenoid valve
Emerson Automation Solutions Valves, Actuators & Pump Control
Emerson has introduced the new ASCO Series 327C solenoid valve, which features a direct-acting, high-flow design that provides superior flow-to-power ratio. It permits high flows at minimum power levels, making it ideal for use in power plants, refineries, and chemical processing facilities.

Read more...

Proportional cartridge valve series is the fastest in its class
Valves, Actuators & Pump Control
Parker Hannifin is introducing the enhanced version of the proportional cartridge throttle valve series, TFP. The new pilot valve further reduces the step response times by up to 30%, making the TFP the fastest valve in its class.

Read more...

Inspection system for leak detection in valves in hazardous areas
Extech Safety Systems Valves, Actuators & Pump Control
Leaking valves in industrial plants not only lead to loss, safety risks and possible contamination and pollution, but also result in high economic costs. Therefore, valves in hazardous areas require regular proper inspection and preventive maintenance to ensure their functionality.

Read more...

Valves, Actuators & Pump Control

Butterfly valves

Further reading:

Published by Technews