° C and with inlet water temperatures up to 30 ° C. The units are ideal for applications dedicated to one or more processing machines, both for indoor and outdoor applications. Piovan chillers operate with green refrigerant fluid R407c. In winter, it is possible to combine the chiller with a free-cooling system, which allows for a significant reduction in energy consumption.

Dosing and BlendingTemperature ControlRefrigeration

° C, pressurised water for temperatures up to 140 ° C and oil for temperatures up to 200 ° C. All models are equipped with pumps capable of covering a wide range of requirements. High pressure and reversible pumps are available. The temperature controllers are equipped with a microprocessor, with PID algorithm (which controls both the heating and cooling phases). The control ensures accurate working temperatures, with fluctuations over the set value within ± 0.4 ° C for the entire temperature range. Piovan manufactures a complete range of chillers, both air and water condensed, with a cooling capacity ranging from 7 kW (6,000 kcal/h) to 580 kW (500,000 kcal/h). The models up to CH 1800 are equipped with Scroll compressors, which significantly reduce power consumption, noise levels and the risk of liquid refrigerant return slugs. Semi-hermetic alternative compressors manufacturer are installed in bigger models. The chillers are designed to operate with ambient temperatures of up to 50 The range of MDT volumetric dosers uses augers for dosing masterbatch or other additives. These materials are mixed with the main polymer directly on the plastification screw. The MDT dosers ensure such advantages as repeatability and high precision, thanks to the digital control of screw revolutions and to the high quality components. The range of MDW gravimetric blenders is designed to dose, weigh and blend up to 6 components (virgin, regrind, masterbatch and additives) for throughputs up to 1500 kg/h. Pneumatic slide gates, screws and microcells ensure the dosing of the different components at the pre-set percentages. High precision and repeatability are guaranteed. Greater flexibility is ensured by the microprocessor control, which memorises up to 99 different formulas. The dosers can be installed beside the processing machine, or directly on its feed-throat. Piovan mould temperature controllers are designed to control temperatures of moulds, extruder manufacturer screws, barrels and calibrator heads. The temperature controllers use water as a heat transfer medium for temperatures up to 90