FLOW MONITORING AND METERING
Long-lasting little wonders
Products that give great service over a decade aren’t easy to find. A clamp-on, ultrasonic water flow meter that
provides controls and a submersible pump – and has ensured flow return to a brook – impresses David Leigh
O
ptimising usage and costs associated
with water consumption is an
important area in food processing and
the reliability of the associated systems is
essential to comply with abstraction agreements.
Hendy & Sons of Taunton
(www.whhendyandsons.co.uk) are a long
established company of drainage and water
engineers with considerable experience in this
area. Ten years ago they were asked to provide a
control system for a submersible pump as part
of the abstraction agreement for a pig processing
factory. A condition of the agreement was that 2
l/s of the abstraction from a local underground
spring should be fed back to the local brook.
Having considered alternatives, a clamp-on
ultrasonic flow meter was selected due to the
installation and maintenance benefits associated
with the non-invasive technology, including low
cost and minimum disruption installation plus
Micronics Ultraflow 2000 has proved reliable and effective
dry maintenance and service. Micronics were Alan Hendy, of Hendy & Sons, has been on-site borehole and the underground spring.”
selected as the supplier due to their long-term impressed by a decade of good service. This is an excellent example of the benefits
experience with ultrasonic clamp-on technology, He said: “The system including the Micronics associated with clamp-on flow
competitive pricing and product performance. flow meter has operated reliably for 10 years, metering/measurement as a contribution to
The initial system used a Micronics Ultraflow - we’re delighted and the new owners of the plant managing water usage and the potential for
UF2000 – Time of Flight – fixed flow meter. The are now considering the use of further replication in similar applications is extensive. ■■■
flow rate signal output from the UF2000 was fed UF2000s as part of their investigation into
into an inverter, which modulated the speed of a new extended water abstraction system, For further information call Micronics on
the pump to maintain a constant flow rate return which will optimise the usage and costs 01628 810456 or visit
from the underground spring to the brook. associated with water from a mains supply, www.micronicsflowmeters.com.
Simple accurate flow measurement from outside the pipe
Every manager and engineer knows that simple to use, a straightforward question
you need to be able to measure a and answer menu provides the facility to
resource to manage it effectively and collect valuable information with the
process or building services flow lines minimum of fuss or previous knowledge
are no different. and minimum instruction. And when the
If you need to establish what’s flowing information has been gathered it can be
where in your process or monitor energy viewed on the instrument or downloaded
flow or water consumption the new for further analysis using industry
Portaflow – PF330 and PF220 standard formats.
instruments offer an effective solution. Time is money and this new range of
Process flows and hot or chilled water quick to install, clamp-on, non-invasive
services are major areas of energy instruments offers simple menu driven
consumption in processes and building operation and provides a valuable return
services and the first step in controlling in information for a minimum investment
and managing them is to identify what is in your valuable time.
being used and where, which is not a The Portaflow PF330
simple task on an existing site. For further information please call
There is no simpler way than using range of portable flow meters with +44 (0)1628 811626 or visit
one of Micronics Portaflow, clamp-on integral loggers. Simple to apply and www.micronicsltd.co.uk
30 Water & Wastewater Treatment September 2009
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