Purchase Qty. Reference FOB Price
1-9 Pieces US$180.00
10+ Pieces US$170.00
Product Description
FT series air volume control damper Exhaust Valve PY-1(SD) PY-5(SD) Applicable: The smoke exhaust valve is generally installed in the air duct of the smoke exhaust system, usually closed, fire alarm signal issued by the smoke sensor in the case of fire, the control center connects the electrical ...