Duall Division

Models & Specifications — Previous Page

NH Size 66
Outlet Size 26-1/4" x 34-3/8" I.D • Inlet Size 34-1/2" I.D. • Tip speed = RPM x 8.64
Wheel Diameter 33" • Outlet Area 6.27 Sq. Ft. Inside • Max. BHP = 10.80(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
10300	1643	689	3.22	800	5.04	900	7.03	991	9.19	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
10900	1738	716	3.58	823	5.51	920	7.56	1007	9.76	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
11500	1834	744	3.99	846	6.01	941	8.13	1027	10.41	1107	12.80	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
12100	1930	771	4.41	869	6.53	961	8.71	1047	11.09	1123	13.53	1201	16.14	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
12700	2026	800	4.89	893	7.11	983	9.36	1067	11.80	1143	14.33	1215	16.96	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
13300	2121	828	5.39	918	7.72	1006	10.06	1087	12.54	1163	15.17	1232	17.86	1303	20.72	*	*	*	*	*	*	*	*	*	*	*	*	*	*
13900	2217	857	5.95	944	8.33	1029	10.80	1107	13.30	1183	16.04	1252	18.84	1317	21.69	1385	24.71	*	*	*	*	*	*	*	*	*	*	*	*
14500	2313	886	6.53	971	9.01	1052	11.57	1129	14.16	1203	16.95	1271	19.80	1335	22.75	1399	25.81	*	*	*	*	*	*	*	*	*	*	*	*
15100	2408	917	7.19	998	9.73	1075	12.38	1152	15.09	1223	17.88	1291	20.83	1355	23.89	1414	26.96	1478	30.26	*	*	*	*	*	*	*	*	*	*
15700	2504	947	7.87	1026	10.51	1099	13.26	1175	16.05	1244	18.90	1311	21.91	1375	25.07	1434	28.24	1492	31.50	1552	34.88	*	*	*	*	*	*	*	*
16300	2600	978	8.62	1053	11.30	1124	14.16	1198	17.06	1266	19.98	1332	23.07	1394	26.23	1454	29.55	1509	32.83	1567	36.33	1624	39.84	*	*	*	*	*	*
16900	2695	1009	9.42	1081	12.17	1151	15.12	1221	18.11	1288	21.09	1352	24.21	1415	27.54	1473	30.84	1529	34.28	1582	37.76	1639	41.42	*	*	*	*	*	*
17500	2791	1040	10.26	1109	13.08	1178	16.12	1244	19.19	1311	22.30	1373	25.45	1435	8.83	1493	32.24	1549	35.78	1601	39.28	1653	42.95	1708	46.75	*	*	*	*
18100	2887	1071	11.16	1138	14.07	1205	17.17	1268	20.37	1334	23.54	1396	26.81	1455	30.15	1513	33.67	1569	37.31	1621	40.92	1671	44.60	1722	48.41	1775	52.36	*	*
18700	2982	1102	12.10	1166	15.07	1232	18.27	1293	21.58	1357	24.84	1418	28.16	1476	31.59	1534	35.21	1589	38.89	1641	42.60	1691	46.38	1739	50.21	1789	54.16	1840	58.25
19300	3078	1133	13.10	1195	16.16	1260	19.45	1320	22.85	1381	26.23	1441	29.62	1498	33.10	1554	36.73	1609	40.51	1661	44.32	1711	48.20	1759	52.14	1805	56.10	1854	60.18
19900	3174	1165	14.19	1223	17.27	1287	20.64	1346	24.11	1405	27.68	1464	31.13	1521	34.72	1575	38.36	1629	42.18	1681	46.09	1730	49.99	1778	54.02	1824	58.07	1869	62.24
20500	3270	1196	15.30	1253	18.48	1315	21.93	1373	25.48	1428	29.12	1488	32.75	1544	36.40	1597	40.09	1649	43.89	1701	47.91	1750	51.91	1798	56.04	1844	60.19	1888	64.35
21100	3365	1228	16.52	1283	19.75	1343	23.27	1401	26.95	1454	30.64	1511	34.36	1567	38.12	1619	41.85	1670	45.73	1721	49.77	1771	53.96	1818	58.11	1864	62.36	1908	66.62
21700	3461	1259	17.75	1314	21.11	1371	24.67	1428	28.42	1481	32.24	1535	36.09	1590	39.90	1642	43.74	1692	47.67	1742	51.76	1791	5.98	1838	60.22	1883	64.48	1927	68.84
22300	3557	1291	19.08	1345	22.54	1400	26.18	1455	29.95	1508	33.89	1558	37.80	1613	41.74	1665	45.69	1715	49.73	1762	53.72	1811	58.04	1858	62.39	1903	66.75	1947	71.21
22900	3652	1323	20.49	1375	23.99	1428	27.69	1483	31.60	1535	35.60	1584	39.68	1637	43.70	1688	47.70	1737	51.77	1785	55.97	1832	60.25	1878	64.61	1924	69.18	1967	73.63
23500	3748	1355	21.96	1406	25.55	1457	29.32	1511	33.30	1562	37.37	1610	41.49	1660	45.65	1711	49.77	1760	53.95	1807	58.17	1852	62.41	1899	66.98	1944	71.55	1987	76.11
24100	3844	1387	23.50	1437	27.17	1485	30.95	1539	35.07	1589	39.20	1637	43.45	1684	47.74	1735	51.98	1783	56.19	1830	60.53	1875	64.89	1919	69.30	1964	73.98	2007	78.64
24700	3939	1419	25.11	1468	28.87	1514	32.70	1567	36.90	1617	41.16	1664	45.46	1709	49.84	1758	54.16	1806	58.49	1853	62.95	1897	67.31	1940	71.77	1985	76.58	2028	81.34

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
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E-mail: info@dualldiv.com

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