Square air diffuser - FK

1) Material: aluminum alloy, 2) White color powder painted, 3) Both round and square shape, 4)All sizes are ok - details see: https://www.buildingsupplieshub.com/square-air-diffuser-10074827

Place of Origin: JIA,Jiangsu, China China (Mainland)	Brand Name: SENTAI	Model Number: FK	Type: Air Grille
Certification: ISO	Color: RAL9010

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Technology performance table of FK-10, FK-31 square ceiling diffuser
Spec A×B	cervical part wind speed (m/s)	2	2.5	3	3.5	4	4.5	5
Spec A×B	pitot loss (pa)	9.5	15.5	22	30	39	49.5	60
250×250 (0.0625)	Air Volume CMH	450	563	675	788	900	1012	1125
	reaching distance (m)	2.2	2.6	3	3.2	3.3	3.5	3.8
	NC	21	22	24	30	33	37	40
300×300 (0.09)	Air Volume CMH	648	810	972	1133	1296	1458	1620
	reaching distance (m)	2.9	3.2	3.6	3.8	4	4.2	4.5
	NC	22	23	27	31	34	38	41
350×350 (0.1225)	Air Volume CMH	882	1103	1323	1543	1763	1985	2205
	reaching distance (m)	3.3	3.7	4.1	4.4	4.8	5	5.3
	NC	23	24	28	32	36	39	43
400×400 (0.16)	Air Volume CMH	1152	1440	1728	2016	2303	2592	2880
	reaching distance (m)	3.8	4.2	4.7	5	5.4	5.7	6.2
	NC	24	26	30	34	37	41	45
450×450 (0.2025)	Air Volume CMH	1458	1823	2187	2555	2916	3280	3645
	reaching distance (m)	4.3	4.9	5.4	5.9	6.2	6.6	6.9
	NC	24	26	32	36	38	42	46
500×500 (0.25)	Air Volume CMH	1800	2250	2700	3150	3600	4050	4500
	reaching distance (m)	4.6	5.4	6	6.4	6.8	7.2	7.6
	NC	25	27	32	36	39	42	47
Reaching distance is measured where the wind speed is 0.5m/s.