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Frese EVA
- on/off control and dynamic control valve
A valve particularly designed for the balancing of cooling and heating units.
With its simple on/off control Frese EVA can be used for many different applications, and at the same time advantage is derived from the dynamic control principles. By means of Frese EVA the optimum flow rate is ensured in each control area. This flow rate is maintained in spite of pressure fluctuations in the system. A control area may be two fan coils for a hotel room or a calorifier for a sports centre. Energy savings due to automatic flow control, lower flow and pump pressure. Maximized ΔT due to faster response and increased system stability.
Benefits
- Time consuming adjustment of the system is eliminated
- The valve automatically ensures the hydraulic balance,regardless of changing pressure conditions in the system
Design
- No need to use balancing valves in the distribution lines, main distribution lines and supply lines
- Less time to define the necessary equipment for a hydraulic balanced system
- No impact if the calculated distribution of pressure in the installation is not accurate
- Security that the specified flow is also the real one
- No requirements on pipe lengths before and after the valve
Installation
- Minimized commissioning time due to automatic balancing of the system
- No need for oversized pumps and oversized control valves
Operation
- Energy savings due to elimination of overflows
- Higher comfort due to correct distribution of water in the system and to optimized function of the control valves
Features
- Two valves in one. Replaces both the normal static valve (DRV) and two way valve
- No requirement on pipe lenghts before and after thevalve
- Small compact product
- Built-in on/off function for electrically operated actuator (normally closed)
- The valve can easily be fitted into the system
- Integral optional P/T plugs on Frese EVA for needle system
