TVR-EX SERIES
Round VAV regulators for variable air flow control, approved and certified for installation in hazardous areas (ATEX).
Comply with the requirements of the technical regulations of the Customs Union “On the safety of equipment for work in explosive environments” (TR CU 012/2011). Certificate of conformity: EAEU RU C-DE.HA65.B.00458/20
ATEX-compliant design and components
Suitable for all gases, air with high humidity and vapors in zones 1 and 2, and with electronic control also for air containing dust in zones 21 and 22
Suitable for supply and extract air control and differential pressure monitoring
Electric or pneumatic drive
Damper tightness according to EN 1751, class 4
Housing tightness according to EN 1751 class C
Description
The VAV air flow controller is equipped with a differential pressure sensor to measure air flow.
Control components (accessories) include a differential pressure transducer, which converts the differential pressure (effective pressure) into an electrical signal, a controller and an actuator.
For most applications, the set point comes from a room temperature controller installed outside the potentially explosive atmosphere.
The controller compares the actual value with the set value and modifies the damper actuator control signal if there is a difference between the two values.
The connections for supply voltage and voltage signals are made in a terminal box suitable for use in explosive atmospheres.
Optional equipment
Spring return actuator
Auxiliary switches with adjustable switching points for determining end positions
① Auxiliary switch
② Static differential pressure converter
③ Distribution block
④ Cable entry
⑤ Equipotential connection
⑥ Drive