Wildeboer volume flow controller & volume flow limiter
Wildeboer volume flow controllers and volume flow limiters: their benefits
- Precise air volume control: Wildeboer air flow controllers and air flow limiters support demand-based air distribution in ventilation systems
- High energy efficiency: By ensuring that the specified air volumes are maintained with precision, unnecessary energy losses can be reduced.
- Reliable operation during pressure fluctuations: Volume flow controllers maintain the set air flow rate even under changing pressure conditions, or precisely regulate the setpoint.
- Greater comfort within the building: Uniform air distribution improves the indoor climate in various areas of use.
- Wide range of applications: The components are suitable for a variety of requirements in commercial, public and industrial buildings.
- Support for standard-compliant system design: Wildeboer helps you to implement your ventilation systems safely, efficiently and in line with the design specifications.
An overview of our volume flow controllers
Volume flow controllers are components in ventilation and air-conditioning systems that regulate the air flow rate to a fixed or variable value and maintain it at a constant level or compensate for pressure fluctuations. They are required to reliably supply individual areas with the correct air volume and to ensure efficient, comfortable and standard-compliant air distribution. Wildeboer’s volume flow controllers offer mechanical or electronic solutions depending on requirements and enable precise, energy-efficient air flow control.
Volume Flow Controllers
The Wildeboer volume flow limiter
Volume flow limiters are components in ventilation systems that limit the air flow rate to a specified maximum value. They are used to support air distribution via conventional flow regulators within a narrower pressure range and to promote an economical system design. They are particularly suitable for use in combination with a pressure regulator to maintain constant pressure in the sub-distribution system. The VLR1 volume flow limiter from Wildeboer is maintenance-free, antistatic and microbiologically safe, and thus meets the highest standards for a variety of applications.
Volume Flow Limiter
- VRE1-N Volume flow controller for low volume flows
- VRE1 volume flow controllers round, BMS connection: Wildeboer-Net or on site
- VKE1 volume flow controllers square, BMS connection: Wildeboer-Net or on site
- VRup volume flow controllers round, BMS connection: Wildeboer-Net or direct
- VKup volume flow controllers square, BMS connection: Wildeboer-Net or direct
Frequently Asked Questions about Volume Flow Controllers and Volume Flow Limiters
An volume flow controller is a component in ventilation systems that regulates or limits the air flow rate in a section of ductwork. By adjusting the flow cross-section, it ensures that the specified air volume reaches the relevant rooms or areas – regardless of normal pressure fluctuations in the duct network. Depending on the design, the volume flow can be maintained at a constant level or adjusted as required. In this way, the volume flow regulator supports reliable air distribution, user comfort and efficient system operation.
An volume flow limiter is a component in ventilation systems that limits the air flow rate to a specified value. It prevents more air than intended from flowing through a section of ductwork in the event of pressure fluctuations in the duct network. In this way, it helps to ensure even air distribution and facilitates the hydraulic or aerodynamic balancing of the system.
Volume flow controllers are installed in the supply or extract air ducts of a ventilation system. Typical installation locations include main ducts, branch ducts or duct sections leading to individual rooms or areas of use. The exact position depends on the planned air distribution, the required volume flows and the flow-related installation conditions.
An volume flow controller ensures that the set air flow rate is maintained within a ventilation duct. To achieve this, an electronic controller, for example, measures the differential pressure via a measuring orifice or via the damper blade. If the volume flow deviates from the setpoint, the damper blade adjusts the free flow cross-section. As the duct pressure rises, the damper closes further; as the pressure falls, it opens accordingly. In this way, the air flow rate can be kept constant or, depending on the design, adjusted to meet demand.
An volume flow controller is used when air volumes need to be precisely regulated or maintained at a constant level. It compensates for pressure fluctuations in the duct network, thereby ensuring reliable air distribution in the connected areas. Typical areas of application include office buildings, schools, hotels and other non-residential buildings.
A constant volume flow controller automatically maintains a set air flow rate within a defined pressure range. If the duct pressure changes, the control damper adjusts accordingly and alters the free flow cross-section. This ensures that the desired air flow is reliably maintained even when there are pressure fluctuations in the ventilation system.
The recommended air velocity for flow controllers depends on the size, flow rate, control range and the system’s noise requirements. During the design phase, a range is often selected that enables reliable control whilst limiting both pressure drop and flow noise. Air velocities that are too low can affect control accuracy, whilst those that are too high usually increase pressure drop and noise levels. The specific design should therefore be carried out using the technical data for the relevant volume flow controller and the WiDim sizing software.
The air flow rate can be controlled using volume flow controllers, volume flow limiters, damper valves or by adjusting the fan speed. The choice depends on the requirements in terms of control accuracy, energy efficiency, acoustics and comfort.
The pressure drop across a volume flow controller depends on its size, the volume flow rate and the controller’s current position. In practice, it is often between approximately 30 and 100 Pa, although this may vary depending on the design. To ensure reliable control, the minimum pressure drop specified by the manufacturer must be observed. The exact design is determined on the basis of the technical data and the intended operating conditions.