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Thermostatic
mixing valves (TMVs) generally feature three connections. One
for the hot water supply, one for the cold water supply and one
for the mixed water outlet. But this has now changed with the
recent introduction of the 4th Connection: another new innovation
from Horne Engineering.
Horne
Engineering has been manufacturing TMVs since the early 1920s
and now offers a range of TMVs from 15mm (1/2") to 50mm (2")
as well as thermostatic showe valves. The smallest and most compact
of the range, the HORNE 15 TMV is used to control water at safe
and comfortable temperatures, usually at wash hand basins and
this product features a high mechanical specification, which includes
integral isolating valves, check valves, swivel inlet connections
and full capacity fine mesh strainers.
The
4th Connection is the very latest in a long line of developments,
which creates further benefits from the mechanical specification
already featured on the HORNE 15 TMV.
The
4th Connection is a second outlet which allows cold water from
the TMV to be taken to the cold tap. Crucially this connection
is downstream of the integral ball valve and strainer on the cold
side of the TMV. This means that the cold tap can be isolated
for servicing by means of the integral ball valve and, perhaps
most importantly, the cold tap is protected by the TMV's fine
mesh, stainless steel strainer.
Because
the strainer is designed and specified by Horne as being optimal
for the purpose of protecting the internal mechanism of the TMV
from the ingress of dirt, it also protects the internal mechanism
of the cold tap.
All
of this is acheived without the need for any additional fittings
and a significant reduction in labour is designed to give significant
cost savings.
In
addition to the parts and labour savings, there are other benefits.
Contractors have commented that cold taps, particularly those
that feature ceramic disc technology, often appear on the snagging
lists before project completion due to dirt and debris entering
the tap mechanism.
The
4th Connection protects the tap from this and should give contractors
for greater confidence that this common, costly and time consuming
problem will be greatly reduced or eliminated entirely. By taking
control of this type of detail, the threat of unforseen costs
undermining the costs of the project is also controlled.
The
4th Connection is a very simple and easy solution, which gives
the integral ball valve and strainer more of a job to do - making
the HORNE 15 do even more for your money.
Published
April 2003 |