VENTS PL-10-1A series
Normally open fire-resisting duct damper with thermal fuse and return spring.
VENTS PL-10-PKP, PL-10-PVP, PL-10-PSP series
Normally open fire-resisting duct damper with electric actuator, return spring and thermoelectric breaker.
VVGF-VO, VVGF-VO...400/2 flexible joint
Flexible joints cancel out any potential vibrations transmitted by the fans or air handling units to the air ducting as well as partially compensate for the air duct assembly deformations caused by temperature variation.
VK-VO inlet cone
The inlet cone is recommended to be installed upstream of the fan to improve the air flow parameters.