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This category contains a variety of 2-way and 3-way Characterized Control Valves manufactured by Belimo.
In order to ensure good stability of control, it is essential for a
control valve to have an equal percentage characteristic.
This type of characteristic produces a linear variation
in thermal output according to the amount of
opening of the valve (also known as the system
characteristic). Under normal testing conditions a
conventional ball valve exhibits an S-shaped
characteristic. When it is installed in a real
system, however, this characteristic is seriously
deformed because, compared with its nominal
size, a ball valve possesses an extremely high flow
coefficient. Whether used with or without pipe
reducers or a reduced bore, they do not normally
allow stable regulation of the thermal capacity.
Belimo's unique Characterized Control Valve (CCV) is very
different. A special characterizing disc inside the valve gives it
an equal percentage characteristic which is comparable with that of a
globe valve of the same nominal size. The flow (the Cv value) is reduced
to the required value by a combination of the hole in the ball and the
shaped aperture in the disc. The increase in flow as the valve is opened
is very slow and controlled.
This produces better part-load behavior and improved stability of
control while also optimizing energy consumption.
61 products shown
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