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A| Style | Model | Base Length | Base Width | Cfm @ 0.000-in. Sp | Cfm @ 0.125-in. Sp | Cfm @ 0.250-in. Sp | Cfm @ 0.375-in. Sp | Cfm @ 0.500-in. Sp | Cfm @ 0.625-in. Sp | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 7HY42 | 22" | 22" | 1549 | 1505 | 1459 | 1406 | 1350 | 1293 | £1,979.84 | |
| A | 7HY50 | 26" | 26" | 2518 | 2445 | 2362 | 2271 | 2174 | 2068 | £1,894.62 | |
| A | 7HY56 | 26" | 26" | 2774 | 2637 | 2477 | 2300 | 2109 | 1893 | £2,071.81 | |
| A | 7HY49 | 26" | 26" | 2192 | 2106 | 2006 | 1896 | 1773 | 1628 | £1,921.43 | |
| A | 7HY48 | 26" | 26" | 2192 | 2106 | 2006 | 1896 | 1773 | 1628 | £1,795.64 | |
| A | 7HY51 | 26" | 26" | 2518 | 2445 | 2362 | 2271 | 2174 | 2068 | £1,997.04 | |
| A | 7HY59 | 26" | 26" | 3636 | 3532 | 3426 | 3301 | 3172 | 3036 | £2,034.20 | |
| A | 7HY58 | 26" | 26" | 3191 | 3072 | 2941 | 2796 | 2641 | 2475 | £2,105.29 | |
| A | 7HY55 | 26" | 26" | 2774 | 2637 | 2477 | 2300 | 2109 | 1893 | £1,945.65 | |
| A | 7HY60 | 26" | 26" | 3996 | 3901 | 3806 | 3698 | 3584 | 3464 | £2,425.88 | |
| A | 7HY54 | 26" | 26" | 2515 | 2362 | 2177 | 1974 | 1744 | 1365 | £1,982.65 | |
| A | 7HY52 | 26" | 26" | 2889 | 2826 | 2757 | 2683 | 2602 | 2518 | £1,906.29 | |
| A | 7HY57 | 26" | 26" | 3191 | 3072 | 2941 | 2796 | 2641 | 2475 | £1,992.09 | |
| A | 7HY67 | 30" | 30" | 4061 | 3919 | 3786 | 3666 | 3554 | 3345 | £2,149.32 | |
| A | 7HY63 | 30" | 30" | 3098 | 2916 | 2759 | 2525 | 2257 | 1867 | £2,167.72 | |
| A | 7HY61 | 30" | 30" | 2815 | 2617 | 2448 | 2143 | 1763 | - | £2,094.42 | |
| A | 7HY62 | 30" | 30" | 3098 | 2916 | 2759 | 2525 | 2257 | 1867 | £2,072.95 | |
| A | 7HY64 | 30" | 30" | 3551 | 3389 | 3243 | 3115 | 2879 | 2654 | £2,104.27 | |
| A | 7HY65 | 30" | 30" | 3551 | 3389 | 3243 | 3115 | 2879 | 2654 | £2,207.72 | |
| A | 7HY66 | 30" | 30" | 4061 | 3919 | 3786 | 3666 | 3554 | 3345 | £2,160.59 | |
| A | 7HY68 | 30" | 30" | 4477 | 4348 | 4224 | 4108 | 4005 | 3904 | £2,174.01 | |
| A | 7HY69 | 30" | 30" | 4477 | 4348 | 4224 | 4108 | 4005 | 3904 | £2,503.97 | |
| A | 7HY72 | 30" | 30" | 5648 | 5546 | 5443 | 5345 | 5254 | 5163 | £2,482.44 |
Dayton hazardous-location upblast centrifugal ventilators are roof-mounted for continuously discharging hazardous chemical fumes & particles, dirty air, grease, foul air and odour from industries and commercial buildings. They have spun aluminium housing with backward inclined, spark-resistant aluminium wheels for corrosion resistance, durability and overload prevention, regardless of static pressure applied to the system. They feature belt-drive motors for greater flexibility in terms of rpm speeds, as the motor is not directly in contact with the fan's moving parts. Choose from a wide range of these ventilators, available in wheel diameters ranging from 11.25 to 18.50 inches.