Aerotech Fans
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Aerotech Fans
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Engineering answers to the most common questions about industrial ventilation, air handling, and pollution control systems.
The cooling capacity of an industrial air washer is mathematically limited by the ambient wet-bulb depression (the difference between the dry-bulb and wet-bulb temperatures). The system can cool the air close to the wet-bulb temperature, but it can never physically drop below it.
Yes, high-energy venturi wet scrubbers are capable of capturing sub-micron particulate matter down to 0.3 microns with up to 99% efficiency by relying on extreme throat velocities to atomize the scrubbing liquid, creating violent collisions with the dust.
Unlike standard ducted ventilation fans which are measured in volumetric flow (CFM or CMH), the performance of an impulse jet fan is measured strictly by its aerodynamic thrust output, rated in Newtons (N), which dictates its ability to entrain and push surrounding ambient air.
Severe vibration is typically caused by severe impeller imbalance due to localized particulate buildup, abrasive wear on the blades, or bearing failure. Continuous vibration monitoring systems are recommended to detect these imbalances before they cause catastrophic shaft failure.
For heavy-duty ID fans operating in high-temperature environments, bearings should typically be greased every 2,000 to 4,000 operating hours using high-temperature lithium complex grease, though automated continuous lubrication systems are highly recommended to prevent premature failure.
Yes, dust collectors handling organic particulates like flour, sugar, and cornstarch require strict ATEX and NFPA 68 certification. These systems must be equipped with explosion venting panels and epitropic (anti-static) filter media to prevent catastrophic deflagration.
A persistently high differential pressure indicates bag blinding. This occurs when the compressed air header pressure is too low to shatter the dust cake, or if moisture has entered the airstream, turning the dry dust into a sticky mud that permanently clogs the filter media.
A blocked rotary airlock is usually caused by bridging of oversized materials or severe moisture coagulation in the hopper. The system must be locked out, and the access port opened to manually clear the shear-point. Never use compressed air to blow out a jammed rotary valve due to deflagration risks.
Our double-stage high-pressure blowers can generate up to 2500 mm w.g. static pressure by utilizing two impellers mounted in series on a common shaft, effectively doubling the compression capability of a single-stage unit.
A Double Inlet Double Width (DIDW) blower should be chosen when you require massive volumetric airflow (CFM) in a clean-air environment with restricted installation space, such as an HVAC Air Handling Unit. For high-pressure or material handling, an SISW blower is required.
Random packing media, such as Pall rings or saddles, is used to drastically increase the internal wetted surface area of the scrubber column. This maximizes the gas-to-liquid contact time, which is critical for the chemical absorption of toxic gases like ammonia and hydrochloric acid.
A washdown-duty roof extractor is engineered for food and beverage plants requiring aggressive daily sanitation. It features IP69K-rated encapsulated motors and 316L stainless steel, crevice-free housings to withstand high-pressure, high-temperature chemical hosing without harboring bacteria.
