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Transfer door grille, 1. Material: Aluminum Alloy, 2. Feature: Light weight and good shape, 3. Easy installtion - details see: https://www.machineto.com/transfer-door-grille-10204113

Transfer door grilleisadded with a frame and special door lock and hinge for easier installation and cleaning of the filter mesh. The vale can be easily open by slightly unbolting the two bolts on the valve. When pulling out the filter mesh, just push on the valve, the Spring locks at both sides would be locked automatically. This return wind inlet is usually used on the return wind inlets in guest rooms and lobbies.

Place Order CodeisHAG-SorHAG-B

Dataof the product are as follows:

Pipe Windspeed (m/s)	1	2	3	4	5
Total pressure Loss (mmH2O)	0.85	3.43	7.71	13.70	21.42
Static pressure Loss (mmH2O)	0.91	3.67	8.26	14.68	22.95

Resistance Coefficient	ε = 13.98
Spec.& Size (mm)	Wind Volume m3/h

200 * 200	145	230	450	580	720
200 * 300	220	435	650	865	1080
200 * 400	290	580	865	1155	1440
200 * 500	360	720	1080	1440	1800
300 * 300	325	650	975	1300	1620
300 * 400	435	865	1300	1730	2160
300 * 500	540	1080	1620	2160	2700
300 * 600	650	1300	1945	2595	1240
400 * 400	580	1155	1730	2350	2880
400 * 500	720	1440	2160	2880	3600
400 * 600	865	1730	2595	3460	4320
400 * 500	900	1800	2700	3600	1500
400 * 600	1080	2160	3240	4320	5400
500 * 700	1260	2520	3780	5040	6300
500 * 800	1440	2880	4320	5760	7200
500 * 1000	1800	3600	5400	7200	9000

Pictures of Return Air Louver:

• Hinged Air Grille with Big Blade(HAG-B)
• Hinged Air Grille with Small Blade(HAG-S)