These
valves are fitted with stepper motors, unipolar or bipolar type, separated or
integrated, giving very precise control of the flow rate (from 2800 to 4000
steps depending on the model) while maintaining very low energy consumption
(12VDC motor and only when solicited).
These
valves are approved for all HFC refrigerants, a working pressure of 50 bar and
a temperature range of -40 to +120°C.
They
are PED approved and UL certified for the US market.
Mostly
bi-directional, they allow full flow of refrigerant, limiting pressure drops in
both directions.
They
are available in diameters from 3/8 to 2 1/8 for 2-way valves, and from ½ to
7/8 for 3-way valves.
A
stainless steel body provides good corrosion resistance, and copper fittings
make installation easier.
More details