KVS-Volumenstromregler

layer

VFC

Circular mechanical self-powered volume flow controllers for the control of supply air or extract air in constant air volume systems with low airflow velocities

  • Suitable for airflow velocities from 0.8 m/s
  • Very simple commissioning
  • Volume flow rate can be set using a rotary knob and a scale on the outside of the casing
  • Simple retrofit of an actuator for variable volume flows
  • Any installation orientation; maintenance-free
  • Casing air leakage to EN 1751, class C


Optional equipment and accessories

  • Circular silencer Type CA or CF 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 variable volume flows or for qvmin - qvmax switching

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layer

EN

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

  •  Mechanical system-powered, without external power supply
  • Suitable for supply and extract air
  • Correct operation, even under unfavourable upstream and downstream conditions (straight length required upstream 1.5 B, downstream 0.5 B)
  • Close tolerances on flow rate
  • Flow rate setting using pointer on external scale, scale accuracy approximately ± 4 %
  • Flow rate range 4 : 1
  • Damper blade shaft supported in bearings
  • Bellows also acts as an oscillation damper
  • Differential pressure range 50 to 1000 Pa
  • Independent of orientation
  • Damper blade mechanisms maintenance-free
  • Operating temperature range 10 to 50 °C


Simplified installation

The Type EN and END volume flow controllers are fitted with flanges on both ends. This ensures very low leakage at the joint.

Acoustic requirements

Depending on requirements, a TX silencer may be supplied to reduce the air-regenerated noise.(installed by others).

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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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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

RN-Ex

Circular, mechanical self-powered volume flow controllers for the control of supply air or extract air in constant air volume systems, approved and certified for potentially explosive atmospheres (ATEX)

  • ATEX-compliant construction
  • Approved for gases, mists, vapours and dusts in zones 1, 2, 21 and 22
  • Volume flow rate can be set using an external scale, no tools required
  • No on-site test measurements required for commissioning
  • Suitable for airflow velocities of up to 12 m/s
  • Any installation orientation
  • 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 for the reduction of air-regenerated noise

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layer

EN-Ex

Rectangular, mechanical self-powered volume flow controllers for the control of supply air or extract air in constant air volume systems, approved and certified for potentially explosive atmospheres (ATEX)


  • ATEX-compliant construction
  • Approved for gases, mists, vapours and dusts in zones 1, 2, 21 and 22
  • Suitable for volume flow rates up to 12,600 m³/h or 3,500 l/s
  • Volume flow rate adjustment from outside by rotary knob
  • High control accuracy
  • No on-site test measurements required for commissioning
  • Casing air leakage tested to EN 1751, class C
  • Visual display of damper blade position for operating point optimisation

 


Optional equipment and accessories


  • Acoustic cladding for the reduction of case-radiated noise
  • Secondary silencer Type TX for the reduction of air-regenerated noise

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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.: +7 495 221-5161 | Fax: +7 495 221-5171