Northern Industrial Supply Company radial blade blower fans

Northern Industrial Supply Company radial blade blower fans can be in single width single inlet (SWSI), or double width double inlet (DWDI). Capacities: to 500,000 CFM. Northern Industrial Supply Company radial blade blower fans (industrial radial blade blowers) are supplied in welded heavy gauge steel construction to prevent flexing at high pressure. Radial Fans are available in direct drive arrangements 4/4V/4H/7/8 and belt drive arrangements 1/3/9/9S/9T/9H. Static pressure up to 100 inches water gauge depending on the class of construction. Typical class of construction is Class 1, 2, 3, 4, 5.

Radial Blade Blowers

Aluminum wheel, Steel wheel, or Alloy wheels are available on Northern Industrial Supply Company radial blade blower fans: industrial radial blowers and fans are supplied with aluminum wheel or corten wheel to meet requirements of AMCA A, and AMCA B spark resistant construction. Mild steel wheels are of all welded construction. They are used on pressure applications, material handling applications (plastic scrap, paper trim, granular material, low density bulk material) where wheel is reinforced with support gussets, or made of abraision resistant construction, or furnished of high strenght steel. Stainless steel wheel in 304 SS, 316 SS, 316 SS, 2205 SS are supplied for corrosive applications, or high temeparature applications. The pressure curve remains stable from fully open to fully closed position.

Heat fan construction can be furnished for up to 1000 F opertation and includes high temperature paint (up to 1000 F), special alloy construction, shaft cooler, shaft-cooler guard, and steel wheel, or alloy wheel, with steel, or alloy housing.

Shaft seal and low leakage construction for demanding low-leakage applications can be furnished with shaftss straightened to close tolerance to minimize “run-out” and ensure smooth operation. Teflon shaft seal, ceramic shaft seal and lubricated shaft seals (Buna, Teflon, Viton) are standard. Red silicone gasketing is provided for low leakage construction and for high temperature construction. Heavy-duty spherical roller bearings are standard.

Cladding for sound attenuation and silencers for low-noise installations consists of 2 inches mineral-wool insulation covered with a welded steel jacket. As an inexpensive alternative is offered slide-on acoustic cloth jackets. Inlet silencer/outlet silencer are supplied with matching flanges for further attenuation of the noise level.

Standard Northern Industrial Supply Company radial blade blower fans accessories include: flash or raised access door, inspection port, drain and plug, unitary base, shaft and bearing guard, belt guard, motor cover, spring vibration isolation, rubber-in-share (RIS) vibration isolation, vibrating pads, outlet damper, inlet vane damper, external inlet vane damper, evase, electrical / pneumatic actuators.

Susan Terlitski
Canadian Industrial Process Designer

Oleg Tchetchel

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