PRESSURE INDEPENDENT CONTROL VALVES PICV

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1 Product sheet CV5.80 Valve type VSX..-PB/VSX..T-PB PRESSURE INDEPENDENT CONTROL VALVES PICV VSX..PB/VSXT..PB pressure independent balancing & control valves can be used in heating and cooling systems in applications with Fan Coil Units, Chilled Beams or other terminal units applications. VSX..PB/VSXT..PB valves provide modulating control with full authority regardless of any fluctuations in the differential pressure of the system. VSX..PB/VSXT..PB valves combine an externally adjustable automatic balancing valve, a differential pressure control valve and a full authority modulating control valve. VSX..PB/VSXT..PB valves make it simple toachieve 100% control of the water flow in the building, while creating high comfort and energy savings at the same time. An additional benefit is that no balancing is required if further stages are added to the system, or if the dimensioned capacity is changed. Energy saving is due to optimal control, lower flow and pump pressure. Maximized dt is due to faster response and increased system stability. Model Type Model Description VSX-03PB 1/2" PICV (Pressure Independent Control Valve), Stroke 2.5mm, Max Flow 200l/h VSX-04PB 3/4" PICV (Pressure Independent Control Valve), Stroke 2.5mm, Max Flow 200l/h VSX-05PB 3/4" PICV (Pressure Independent Control Valve), Stroke 2.5mm, Max Flow 575l/h VSX-06PB 1" PICV (Pressure Independent Control Valve), Stroke 2.5mm, Max Flow 575l/h VSXT-03PB 1/2" PICV (Pressure Independent Control Valve), Stroke 5mm, Max Flow 370l/h VSXT-04PB 3/4" PICV (Pressure Independent Control Valve), Stroke 5mm, Max Flow 370l/h VSXT-06PB 1" PICV (Pressure Independent Control Valve), Stroke 5mm, Max Flow 1330l/h Technical Data Valve Housing and Flow DZR Brass, VW602N Setting DP Controller PPS40% Glass Spring Stainless Steel Diaphragm HNBR O-Rings EPDM Pressure Class PN25 Max Diff Pressure 400kPa Medium Temperature Range 0 to 120 C PS CV5.80-1/5

2 Valve Details Model PN Connection Suitable SyxthSense Actuator VSX-03PB G1/2" STA-24 VSXT-03PB G1/2" SLA-MV30-230S VSX-04PB G3/4" STA-24 VSXT-04PB G3/4" SLA-MV30-230S 25 VSX-05PB G3/4" STA-24 VSX-06PB G1" STA-24 VSXT-06PB G1" SLA-MV30-230S Control Action Min Flow [l/h] Max Flow [l/h] Max Diff Pressure [kpa} On/Off, PWM On/Off, PWM On/Off, PWM On/Off, PWM Benefits DESIGN BEFITS Less time to define the necessary equipment for a hydraulic balanced system (only flow data are required). No need to calculate valve authority. Always one. Flexibility if the system is modifi ed after the initial installation. INSTALLATION BENEFITS No further regulating valves required in the distribution pipework when VSX..PB/VSXT..PB is installed at terminals. Total number of valves minimized due to the 3-in-1 design. Minimized commissioning time due to automatic balancing of the system. No minimum straight pipe lengths required before or after the valve. OPERATION High comfort for the end-users due to high precision temperature control. Technical Characteristics and Benefits The presetting function has no impact on the stroke; Full stroke modulation at all times, regardless the preset flow. The constant differential pressure across the modulating control component guarantees 100% authority. Automatic balancing eliminates overflows, regardless of fluctuating pressure conditions in the system. Used with Thermal actuator STA On/Off, normally closed. Electro mechanical actuator SLA-NMV V and 3-point control, normally closed when inverse action is enabled (Dip n. 1 ON). Differential pressure operating range up to 400 kpa. High flows with minimal required differential pressure due to advanced design of the valve. Small dimensions due to compact housing. Higher presetting precision due to stepless analogue scale. The pipe system shall be properly ventilated to avoid risk of air pockets. Glycolic mixtures up to 50% are applicable ( both ethylene and propylene). PS CV5.80-2/5

3 The design of VSX PB/VSXT--PB valve combines high performance with small size and compact construction. The main components of the valve are: 1.Differential pressure control 2. Modulating control component 3. Presetting scale 4. Actuator A - Flow range ( high-low) B - stroke (2.5mm / 5 mm) Flow / Pre-Set Diagram LOW 2.5 DN 3/8", 1/2" PS CV5.80-3/5

4 LOW 5 DN 3/8", 1/2" HIGH 2.5 DN 1/2", 3/4" HIGH 5 DN 1/2", 3/4" PS CV5.80-4/5

5 Dimensions The diagrams below illustrate the dimensions of the VSX/VSXT..PB valves. Connection L [mm] Weight [kg] Cartridge Type Stroke [mm] G1/2" LOW 2.5 or 5mm G3/4" HIGH 2.5 mm LOW 2.5 or 5mm G1" HIGH 2.5 or 5mm Notes: In the view of a constant development of their products, the manufacturer reserves the right for changing technical data and features without prior notice. PS CV5.80-5/5

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