Tornado Blower
A Tornado blower is the electric fan crews drop next to a tank, manhole or process vessel to force fresh air in or pull fumes out before anyone enters. Texas Pneumatic builds it in 8 in., 12 in. and 16 in. sizes with either an explosion-proof motor certified for NEMA Class 1, Div. 1, Group D and Class II, Group E, F and G areas, or a totally enclosed fan cooled motor for non-hazardous work. Housings are heavy-gauge rolled and welded steel with no castings to crack, and every unit arrives assembled with 25 ft of Extra Hard Use cable. Route the discharge with air ducting, or compare the air-driven jet fan and the rest of the Texas Pneumatic blower line.
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Price range: $4,250.00 through $4,750.00 Select options This product has multiple variants. The options may be chosen on the product page
Price range: $2,985.00 through $3,750.00 Select options This product has multiple variants. The options may be chosen on the product page
Price range: $5,275.00 through $5,750.00 Select options This product has multiple variants. The options may be chosen on the product page
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Explosion-Proof or TEFC
Pick the motor to the atmosphere. Explosion-proof units are certified for NEMA Class 1, Div. 1, Group D and Class II, Group E, F and G areas and are assembled with explosion-proof junction boxes, cords and plugs — the build refineries, petrochemical plants and paint booths require. TEFC units use weatherproof boxes and plugs and cover ordinary tank, vault and manhole work where no flammable vapor is present.
Sizes, Power and Build
Three sizes cover most confined-space work: 8, 12 and 16 in. Motors are rated 115 v or 230 v single phase at 50/60 Hz and switch between the two at the rear of the motor housing; higher voltages and three-phase are available. Fan blades are polymer as standard and solid aluminum optional, the steel outlet adapter has welded guide vanes to stop rattle, and bolts are stainless under a powder-coated housing.
Ducting, Carts and Stands
A dual inlet adapter, a tote cart with straps, an air mover stand and SAC-N-GO ducting in conductive black or non-conductive yellow are offered to match the blower diameter. Full-size 30 ft duct runs in 8, 12 and 16 in. push together cuff-to-end when the work face is well past the fan.
When a Different Fan Fits Better
Tornado blowers need a power drop. Where there is air but no power, use a 12 in. jet fan or a venturi air mover; aboard ship, a water-driven marine blower runs off fire hose pressure. To purge a line, see pipe line blowers.
Common Questions
What is a Tornado blower used for? Ventilating confined spaces — tanks, manholes, process vessels, tunnels and enclosed workspaces — and for cooling or drying. It is also used as a mining blower to clear hazardous fumes and keep air quality up underground.
Do I need the explosion-proof version? If flammable vapor, gas or combustible dust can reach the fan, yes. The EXP motor and its plugs and junction boxes are certified for Class 1, Div. 1, Group D and Class II, Group E, F and G. For dry shop and utility work with no hazardous atmosphere, the TEFC motor is the cheaper choice.
What size Tornado blower fan should I buy? Match the housing diameter to the ducting and the opening — 8 in. for small manways, 12 in. for general tank and vault work, 16 in. for large vessels and long duct. Ask us for free-flow figures on the exact model before ordering.
How does it ship? From Denver, Colorado. The 16 in. blower moves at a flat freight rate; the smaller units ship parcel. See the whole air movement and storage line for ducting and stands to go with it.