Acvatix PICV – hydronics made easy The simple and flexible way to energy-efficient HVAC plants – with pressure-independent combi valves Support apps and tools siemens.
Less effort, high efficiency Why pressure-independent combi valves (PICVs)? Simple: PICVs make your daily work easier – whether planning, installation or commissioning – while also ensuring enhanced comfort and low energy costs.
Acvatix hydronics. Everything under control. Straightforward planning When planning systems with pressureindependent combi valves, the specific PICV to be used is determined solely by the volumetric flow. Flow regulating valves and balancing valves are as unnecessary as complicated hydronic calculations. The wide volumetric flow and differential pressure ranges of the Acvatix PICVs enable extremely straightforward, highly flexible planning.
Acvatix PICV in detail 1 | Maximum volumetric flow presetting • Consistent, wide volumetric flow range for flexible planning • Presetting to prevent oversupply to the heat exchanger • High control accuracy thanks to full stroke range with any preset value • Easy adjustment of maximum volumetric flow at any time when usage patterns change • Mounting and presetting without special tools 1 2 | Integrated differential pressure controller • Automatic shielding against pressure fluctuations in the network for
4 4 | Actuators for PICVs • Actuators for every control requirement • Straightforward planning due to broad actuator range • Efficient plant control and quick troubleshooting thanks to additional functions Acvatix PICVs for every application PN class Connection DN PN 25 Flange 50...150 Volumetric flow VPF53.. PN 16 Flange 50...150 VPF43.. PN 25 Internally threaded 15...50 PN 25 Externally threaded 10...32 PN 10 Externally/internally threaded 10/15 l/h 10 m /h 3 VPI46.. VPP46.. VPD..
The key to high energy efficiency and convenience Ideal for a variety of applications Acvatix PICVs are suitable for use in: • Fan coil units • Chilled ceilings • VAVs (variable air volume systems) • Radiators • Zone control • Heating groups • Air handling units • District heating 1 | Demand-controlled pump • Energy consumption in variable-volume HVAC plants reduced by means of demandand speed-controlled pumps • Volumetric flow optimally adjusted thanks to differential pressure measurement and continuous
Room controlled by PICV Room temperature TR Setpoint [°C] Room temperature TR Actual value [°C] Room controlled by kvs valve [kPa] Differential pressure fluctuations ∆p [%] Stroke H [m3/h] Volumetric flow V Time 3 | 3 Time Differential pressure measurement No undersupply thanks to differential pressure measurement at a plant’s most hydronically significant consumer.
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