RVK-EX Circular Duct Fans

Speed-controllable, explosion-proof centrifugal fan for duct installation

Handles volatile gases
Flexible use
Compact

Flexibility

The RVK-EX is intended to use for supply or extract air, designed to be installed in any position.

Reliability

The casing made out of conducting plastic is lightweight and hard-wearing. This makes it perfect for protecting against the damages of regular use and damp working environments. The combination of casing and motor construction minimises the need for maintenance of the fans and allows long continuous operation.

Performance

The RVK-EX can be used for zone 1 and zone 2; Field of application for gases of groups IIA, IIB and also hydrogen, temperature class T1, T2 and T3.

The type of protection is "Ex h" constructive safety.

Accessories

RVK-EX can be selected together with variety types of accessories as fast clamps, etc.

Construction

The casing made out of conducting plastic is lightweight and hard-wearing.

The RVK-EX 315D4 fan complies with the ATEX regulation

RVK-EX is certified under the no TPS 20 ATEX 085751 0009 X. Explosion proof version comply with EN 60079-0, EN 60079-7, EN 14986, DIN EN ISO 80079-36 and DIN EN ISO 80079-37.

Impeller

RVK-EX use backward curved radial impellers. These are dynamically balanced and paired with corresponding external rotor motors.

Motor

The fan is equipped with AC external rotor motor. The Motor is suitable for 50Hz.

Motor protection

The Motor has a prewired integral PTC thermistor with external leads to be connected to a motor protection device as U-EK230.

Control

The RVK-EX 315D4 can be controlled by reducing voltage via 5-step controller in combination with the Systemair Standard tripping unit U-EK230E EX.

Installation

RVK-EX can be installed in any position. Spigot with 25 mm length is perfectly designed to connect circular duct by fast clamps preventing vibration to the duct.