Ventilation Curved Access Door 

                                                          

Size	Diameter
180*80	80
180*80	100/125
180*80	150
180*80	160
180*80	200
250*150	150/160
250*150	180/200
250*150	250
250*150	300/315
250*150	350/355
250*150	400/500
300*200	315
300*200	355
300*200	400
300*200	450
300*200	500

400*300	400
400*300	450
400*300	500
400*300	560
400*300	600
400*300	630
400*300	710
400*300	800
400*300	900
500*400	560/600
500*400	630
500*400	710
500*400	800
500*400	900
500*400	1000
500*400	1120
500*400	1250
600*450	1000/1250
600*450	1120

Material: Gavlnized steel DX51 D+Z 275 and Gavlnized steel DX51 D+Z 80 are avaliable   
Gasktet: cellular sponge gasket        
Locking Knob color: usually red and blue color are avaliable.
Bolts/nuts:Mild steel and Zn coating.
Packing: plastic bag with installation information lable for each product, carton case + pallet

Remark:

1. As soon as possible to use economic face velocity (1-m/s ~ 2.5 m/s) air to air heat exchanger, ensure the

    economic running.

2. The sectional size, height and plate distance are available to customers′ requirements.