Product category:
Flowmeters and Flow Sensors
News Release from: Krohne | Subject: DW18 series flow switches
Edited by the Engineeringtalk Editorial
Team on 03 October 2002
Cool solution for AstraZeneca
AstraZeneca is using Krohne flow switches to check the flow rate of cooling water feeding through condensers at its manufacturing plant in Macclesfield.
AstraZeneca, one of the world's leading pharmaceutical companies, is using Krohne flow switches to check the flow rate of cooling water feeding through condensers at its manufacturing plant in Macclesfield "The key to maximum condenser efficiency is the flow rate of the cooling water", says Kevin Whitehead, Control and Electrical Engineer at AstraZeneca, "The Krohne switches enable us to precisely balance the flow of water throughout the system and keep an eye on potential problems"
This article was originally published on Engineeringtalk on 8 Oct 2007 at 8.00am (UK)
Related stories
Level sensor monitors naphthalene
Naphthalene has a very low di-electric constant of around 2.2 at 100C, which makes it particularly difficult to measure.
Flowmeter improves wax production
The wax flowing through the flowmeter can vary in density from 0.8 to 1.0kg/litre and in viscosity from 5.5 to 1200cP.
The switches being used by AstraZeneca are from the Krohne DW18 series.
They offer a cost effective alternative to variable area (VA) flowmeters and, unlike VA flowmeters, which can only be mounted in the vertical axis, the DW18 series can be mounted to both the horizontal or the vertical axis.
This extra flexibility makes the switches easy to install in existing systems.
With the DW18 series, AstraZeneca also has the added benefit of being able to fit high/low switches should alarms and trips be required to warn of potential flow problems.
Whitehead adds, "We have also installed DW18 series switches in our heating, cooling and chilling systems at Macclesfield.
These are used to measure the flow of chilled water mixed with glycol.
The results have always been consistently accurate and repeatable".
The Krohne DW18 series flow switches are of rugged construction and are available in stainless steel or bronze.
Several special versions are available to suit a wide variety of industrial flow monitoring applications, including an Ex version featuring a flameproof aluminium enclosure, and a high temperature model.
• Krohne: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
Search the Pro-Talk network of sites
