Duall Division

Models & Specifications — Previous Page

NH Size 49
Outlet Size 19-1/2" x 25-1/2" I.D • Inlet Size 26" I.D. • Tip speed = RPM x 6.41
Wheel Diameter 24-1/2" • Outlet Area 3.45 Sq. Ft. Inside • Max. BHP = 2.44(RPM/1000)³

S.P.		1.00		2.00		3.00		4.00		5.00		6.00		7.00		8.00		9.00		10.00		11.00		12.00		13.00		14.00
CFM	OV	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
5500	1594	908	1.67	1062	2.65	1199	3.74	1324	4.89	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
5850	1696	947	1.88	1094	2.91	1227	4.03	1345	5.23	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
6200	1797	986	2.10	1126	3.19	1256	4.35	1372	5.59	1483	6.89	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
6550	1899	1026	2.35	1159	3.49	1285	4.69	1400	5.97	1504	7.31	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
6900	2000	1066	2.62	1193	3.82	1315	5.05	1429	6.38	1532	7.77	1631	9.21	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
7250	2101	1106	2.90	1227	4.16	1347	5.44	1458	6.82	1560	8.25	1653	9.72	1750	11.28	*	*	*	*	*	*	*	*	*	*	*	*	*	*
7600	2203	1147	3.22	1265	4.53	1380	5.87	1487	7.27	1588	8.75	1681	10.27	1771	11.87	*	*	*	*	*	*	*	*	*	*	*	*	*	*
7950	2304	1189	3.57	1304	4.93	1413	6.32	1517	7.75	1617	9.28	1709	10.85	1795	12.47	1883	14.17	*	*	*	*	*	*	*	*	*	*	*	*
8300	2406	1232	3.94	1342	5.34	1446	6.80	1549	8.27	1646	9.83	1738	11.46	1823	13.12	1903	14.82	1989	16.62	*	*	*	*	*	*	*	*	*	*
8650	2507	1275	4.33	1382	5.79	1480	7.31	1582	8.84	1675	10.40	1766	12.08	1851	13.79	1931	15.55	2010	17.37	2091	19.24	*	*	*	*	*	*	*	*
9000	2609	1319	4.77	1421	6.26	1516	7.84	1615	9.43	1706	11.03	1795	12.74	1880	14.51	1959	16.31	2035	18.16	2111	20.04	2189	22.02	*	*	*	*	*	*
9350	2710	1363	5.23	1461	6.77	1554	8.39	1648	10.04	1739	11.71	1824	13.42	1908	15.23	1987	17.08	2062	18.97	2134	20.91	2209	22.90	*	*	*	*	*	*
9700	2812	1407	5.73	1501	7.31	1593	8.99	1681	10.69	1771	12.40	1855	14.16	1937	16.00	2016	17.91	2090	19.83	2162	21.83	2230	23.83	2304	25.93	*	*	*	*
10050	2913	1452	6.26	1541	7.87	1631	9.59	1715	11.37	1804	13.14	1887	14.94	1967	16.82	2045	18.77	2119	20.75	2190	22.78	2257	24.81	2324	26.90	2395	29.08	*	*
10400	3014	1496	6.82	1582	8.48	1670	10.25	1752	12.09	1837	13.91	1919	15.75	1996	17.63	2074	19.65	2147	21.66	2218	23.75	2285	25.84	2350	27.97	2416	30.17	2484	32.42
10750	3116	1541	7.43	1622	9.11	1710	10.95	1790	12.83	1871	14.73	1952	16.62	2028	18.54	2103	20.55	2176	22.63	2246	24.75	2313	26.89	2378	29.09	2440	31.29	2504	33.55
11100	3217	1586	8.07	1663	9.78	1749	11.67	1828	13.60	1905	15.58	1985	17.52	2061	19.50	2133	21.52	2205	23.63	2275	25.80	2342	28.01	2406	30.23	2468	32.49	2528	34.78
11450	3319	1631	8.74	1707	10.52	1789	12.43	1867	14.42	1939	16.43	2018	18.44	2093	20.47	2165	22.55	2235	24.68	2304	26.89	2370	29.12	2434	31.40	2496	33.72	2555	36.03
11800	3420	1676	9.46	1750	11.27	1829	13.23	1906	15.27	1977	17.34	2052	19.43	2126	21.50	2197	23.61	2264	25.73	2333	28.01	2399	30.30	2463	32.64	2524	34.98	2583	37.34
12150	3522	1721	10.21	1794	12.09	1869	14.07	1945	16.16	2015	18.27	2086	20.45	2159	22.56	2230	24.74	2297	26.93	2362	29.15	2428	31.51	2491	33.87	2552	36.27	2612	38.73
12500	3623	1766	11.00	1837	12.92	1910	14.96	1984	17.09	2054	19.27	2120	21.49	2193	23.68	2262	25.87	2329	28.13	2393	30.40	2457	32.75	2520	35.17	2581	37.63	2640	40.11
12850	3725	1812	11.85	1881	13.81	1950	15.87	2024	18.07	2092	20.28	2158	22.57	2226	24.82	2295	27.07	2361	29.36	2425	31.69	2487	34.06	2549	36.51	2610	39.03	2669	41.57
13200	3826	1857	12.73	1925	14.75	1991	16.84	2063	19.07	2131	21.35	2196	23.68	2260	26.02	2329	28.35	2394	30.66	2457	33.03	2518	35.43	2579	37.92	2639	40.46	2697	43.01
13550	3928	1903	13.67	1969	15.72	2032	17.85	2103	20.13	2170	22.46	2234	24.83	2295	27.25	2362	29.62	2427	32.01	2490	34.44	2550	36.87	2608	39.32	2668	41.92	2726	44.54
13900	4029	1948	14.63	2014	16.77	2075	18.92	2143	21.23	2210	23.64	2273	26.06	2333	28.51	2396	30.97	2460	33.39	2522	35.85	2582	38.34	2640	40.86	2697	43.42	2755	46.10

All capacities based on Standard Air (Density .075 #/cu. ft. — 70°F —29.92" Hg. Bar). Performance shown is for NH exhaust fans for installation type B-free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
Note: Uncolored area indicates Class II wheel; Purple area indicates Class III wheel; Green area indicates Class IV wheel. Asterisk (*) = Unstable Operating Range

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Duall
1550 Industrial Drive, Owosso, MI 48867
Phone: 989-725-8184 Fax: 989-725-8188
E-mail: info@dualldiv.com

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