LIBRA – Pressure independent control valves

LIBRA is the range of pressure independent balancing and control valves developed by Controlli (often identified by the acronym PICV).

The main feature of LIBRA valves is that they are valves that can control the water flow independently of differential pressure as long as it remains within a range of 0.35 bars up to 6 bars.

A LIBRA valve replaces up to three separate valves, reducing installation and commissioning time and costs; It incorporates a 2-way control valve, a flow calibration valve and a differential pressure control valve.

Other important features of THE LIBRA valves are:

  • Authority close to 100%;
  • Linear valve characteristic regardless of the preset value;
  • Availability of pressure plugs for the actual measurement of differential pressure on the valve in order to verify its proper functioning;
  • Flow rate can be precisely set at its specified design value;
  • Flow rate calibration that can also be carried out without removing the actuator and always visible thanks to the placement of the caliber at the bottom of the valve;
  • Availability of accessories such as Male Female fittings, differential pressure meter with display and thermal insulation jackets.

Click here to view the LIBRA range.

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