1.Rational construction. 2.Light and handy structure. 3.Beautiful appearance. 4.Easy to adjust.

Simple leaf butterfly valve is used for air volume adjustment in the purification of air conditioning engineering projects or general ventilation.

The valve can be installed in the wind pipe track, and duct connected to wind pipe to control wind speed, adjust the indoor air supply.

According to the actuating mechanism, it can be divided into manual fan switch, manual ohm switch, manual gear switching, manual down switches and electric switches.

Simple leaf butterfly to install the fireproofing fusing,it to become fire resisting damper.

Main Size: Generally based on connecting duct size, height is about 220mm.

PART NO.	SPECIFICATION A*B	PART NO.	SPECIFICATION A*B
1	160*160	5	400*200
2	200*160	6	500*200
3	200*200	7	630*200
4	320*200	8	800*200

Rectangle fire damper butterfly valve