Variable
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Products & Services
Flow Rate Controllers
Thanks to System ActiveControl, LTG flow rate controllers handle all the important checking and control tasks, even at very low air velocities and with a minimal space requirement – and also for futuristic control concepts like demand controlled ventilation or hybrid ventilation.
Overview
The variable LTG flow rate controllers regulate constant or variable volumetric flows independently of the inlet pressure. They reliably ensure energy-efficient operation of the ventilation system and are available, depending on the design, with accessories such as a silencer. All variable flow rate controllers are available in round or oblong shapes and in many different sizes – suitable for any duct size.
Flow Rate Controller variable
VRF
Variable flow rate controller in angled design for combination with spring return or fast-action drive units
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Flow Rate Controller variable
VRE
Variable flow rate controller in round design for combination with spring return or fast-action drive units
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Flow Rate Controller variable
VRD
Variable flow rate controller such as VRE, however with 2 dampers for supply/return air control in parallel-routed air lines
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Flow Rate Controller variable
VRF active
Variable flow rate controller in angled design for precise control even in cramped installation conditions. With System ActiveControl.
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Flow Rate Controller variable
VRE active
Variable flow rate controller in round design for precise control even in cramped installation conditions. With System ActiveControl.
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Flow Rate Controller variable
VRD active
Variable flow rate controller such as VREactive, however with 2 dampers for supply/return air control in parallel-routed air lines (e.g. hotel rooms, flats). With System ActiveControl.
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Constant
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Overview
In systems with constant volumetric flow (KVS), flow rate controllers are used that automatically maintain a constant volumetric flow mechanically. Not needing cables or external power, they are a practical and inexpensive solution. LTG flow rate controllers for a constant volumetric flow are available in many variants: in a round or angled shape, in many sizes, and with or without an insulating casing.
Constant control and shut-off
unit VRW-A
Constant flow rate controller with shut-off damper, in round design, control mechanically self-actuating (no external power required)
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Flow rate controller constant
VRW-2
Constant flow rate controller in round design, mechanically self-actuating (no external power required), impervious to soiling
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FLOW RATE CONTROLLER CONSTANT
VRX
Constant flow rate controller in square design, mechanically self-actuating (no external power required), impervious to soiling
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