
AK-EX SERIES
Round duct shut-off valves, 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 electric actuator – for air containing dust in zones 21 and 22
Suitable for supply and extract air
Electric or pneumatic drive
Can be installed in any position
Damper tightness according to EN 1751, class 4
Housing tightness according to EN 1751 class C
Optional equipment
Spring return actuator
Auxiliary switches with adjustable switching points for determining end positions
Application
Round shut-off valves EXCONTROL series AK-Ex are used to shut off or limit air flows in air ducts of ventilation and air conditioning systems
For use in hazardous areas (ATEX).
The input signal that controls valve closing is supplied by a third party
Characteristics
ATEX mark and certificate
ATEX Group II, approved for use in zones 1 and 2, and with electric actuator for zones 21 and 22
Design
Galvanized sheet steel
P1: Powder coated interior, silver gray (RAL 7001)
A2: Stainless steel inner surface
Details and characteristics
The air shut-off valve is supplied ready for installation.
Valve flap with mechanism
Connection for equipotential bonding
The cable entry complies with the standards for use in hazardous areas
ATEX-compatible drive is mechanically and electrically connected at the factory
Accessories
Electric drive
Auxiliary switch for detecting end positions
Pneumatic drive
Execution
Round body
Design and materials comply with the EU Directive for Use in Potentially Explosive Atmospheres (ATEX)
Connection with seal for round ducts EN 1506 or EN 13180

Materials and surface coating
Valve body and blade made of galvanized sheet steel
Flap seal made of TPE plastic
Polyurethane plain bearings
The electric drive is made of extruded aluminum
The pneumatic drive is made of plastic