Mô tả sản phẩm
With nearly a century of experience in hydronic balancing technology, Flamco is one of the world's leading manufacturers of HVAC balancing and control solutions. As part of the Aalberts Group, Flamco continuously develops innovative products that improve hydraulic stability, simplify commissioning, and reduce operating costs in commercial HVAC systems.
The Nexus Passim Differential Pressure Control Valve (DPCV) is designed to automatically maintain a constant differential pressure within heating and cooling circuits. Installed in the return line, the valve works together with a partner balancing valve such as the Nexus Fluctus or Nexus Vertex through a capillary tube connection. As system pressure changes, the internal diaphragm automatically adjusts the valve opening to maintain the preset differential pressure, ensuring stable flow through terminal units and control valves.
By maintaining constant differential pressure, the Nexus Passim eliminates overflow, improves control valve authority, and significantly reduces flow noise caused by excessive differential pressure across FCUs, radiator thermostats, two-way control valves, and other hydronic components. The valve is available in DN15–DN50 with threaded connections and is an ideal solution for chilled water and heating systems requiring precise differential pressure control.
Main Features
The Nexus Passim DPCV automatically stabilizes differential pressure throughout variable-flow HVAC systems, improving control accuracy and hydraulic balance while reducing commissioning time, pumping energy, valve noise, and system instability. Its adjustable pressure setting ensures reliable long-term performance under varying operating conditions.
Technical Specifications
- Product type: Differential Pressure Control Valve (DPCV)
- Series: Nexus Passim
- Connection: Female threaded
- Size range: DN15–DN50
- Working pressure: PN25
- Maximum differential pressure: 2.5 bar
- Operating temperature: -20°C to +120°C (up to +135°C temporarily)
- Adjustable differential pressure setting
- Installation: Return line
- Capillary tube connection required
- Applications: Chilled water and heating systems
- Manufacturer: Flamco Netherlands
- Country of origin: Germany