CONSTANT VOLUME FLOW CONTROL – CONSTANTFLOW


 

Circular Air Terminal Units for Constant Air Volume (CAV) Flow systems, for the precise control of supply air or extract air at constant volume flow rates, suitable even when upstream conditions may be unfavourable. These units enable a highly precise yet simple setting and measurement of the volume flow rates. The volume flow rate setpoint value can be set quickly and easily using the pointer on the external scale; no measurements are required. Our production facilities are fully equipped with air test rigs, so that every unit leaves the factory perfectly set up to exact customer requirements. Depending on their construction configuration the units can meet even the most demanding acoustic requirements with its whisper-quiet operation; different materials and surface finishes are also available. The controllers work basically without an external power supply. For special applications they can be optionally fitted with actuators for switching between the setpoint values.

layer

RN

Circular self-powered volume flow controllers for the control of supply air or extract air in constant air volume systems

  • Volume flow rate can be set using an external scale, no tools required
  • High control accuracy
  • No on-site test measurements required for commissioning
  • Suitable for airflow velocities of up to 12 m/s
  • Any installation orientation; maintenance-free
  • Casing air leakage to EN 1751, class C


Optional equipment and accessories

  • Acoustic cladding for the reduction of case-radiated noise
  • Secondary silencer Type CA or CS for the reduction of air-regenerated noise
  • Hot water heat exchanger Type WL and electric air heater Type EL for reheating the airflow
  • Actuator for switching between setpoint values

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layer

VFL

Circular, mechanical self-powered controllers for insertion into ducting, for the quick and easy balancing of constant volume flow rates in ventilation and air conditioning systems

  • Unique damper blade edge for acoustic optimisation
  • Simple and quick commissioning on site
  • Range of volume flow rate setpoints for each nominal size
  • Precise and simple setting of volume flow rates using a scale
  • Best accuracy among controllers for insertion
  • Suitable for low airflow velocities from 0.8 m/s
  • Any installation orientation; maintenance-free

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Contact

Thank you for your message!

Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +44 (0)1842 754545 | Fax: +44 (0)1842 763051