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

Sealed off multi leaf 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.

Mulit leaf valve 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	PART NO.	SPECIFICATION A*B
1	320*160	16	500*320	31	630*1600
2	320*200	17	500*400	32	800*800
3	320*250	18	500*500	33	800*1250
4	320*320	19	500*800	34	800*1600
5	320*800	20	500*1000	35	800*2000
6	320*1000	21	500*1250	36	1000*800
7	400*200	22	500*1600	37	1000*1000
8	400*250	23	630*250	38	1000*1250
9	400*320	24	630*320	39	1000*1600
10	400*400	25	630*400	40	1000*2000
11	400*800	26	630*500	41	1250*1600
12	400*1000	27	630*630	42	1250*2000
13	400*1250	28	630*800	43	1600*1600
14	500*200	29	630*1000	44	1600*2000
15	500*250	30	630*1250

Sealed off fire damper valve