Inner PVC bags
Outer strong cartons and wooden pallet
Shipped in 7 days after payment
Galvanized sheet round air non-return backdraft damper
The electrical control damper shall be installed in the places of fresh air,supply air,return air and exhaust air,and its openness and operating are subject to the signal from DDC after analyzing the internal and external temperatures for the purpose of energy saving.
Operation and maintenance and train manual
It is installed in Chiller room and interlocked with axial fan.In Summer,when the axial fans are running,the damper are also running to exhaust the air produced by chillers;in Winter,the axial fan don't run ,and the dampers also stay closed to keep the temperature insides.
* Galvanized steel
* Thickness: 0.6mm
* Round volume control damper for air duct systems
* Size: customized made
100,150,200,250,300,350,400mm or According to your requests
7 days after receipt of payment
5000 pcs per month
Exported cartons and wooden pallet.
Round volume control damper and one way shutter are well packed .