If compressed air is available as your utility, we recommend our RF series ventilators or our Jectair (venturi style) air movers. Pneumatic-drive ventilators are often desirable for hazardous locations. If electric drive is preferred or required, we offer most of our fans and ventilators in explosion-proof models. Explosion-proof units require all electrical connections to be enclosed and moving mechanical pieces to be constructed of material so as not to create sparks. This requires special motors and starters, as well as fan blades and other moving parts to be made of non-sparking materials such as aluminum, stainless steel, fiberglass, or plastic.

Local electrical codes can vary for hazardous location equipment operation, creating a variety of different plug-receptacle configurations. We recommend that either the plug be installed by a local electrician, or the type and part number of the correct plug be submitted to us in writing for factory installation to ensure local code compliance.

A 1.5 HP motor is the largest practical power unit to effectively run on single-phase power. A larger HP motor will generate very large current in-rushes, tripping the electrical protection breaker. Our electrical units have thermal overload protection.

No. The given air volume is the same whether the ventilator is used as an exhauster or blower; however, there is a significant difference in the air velocity at a given distance away from the fan.
For example: One foot (305 mm) away from the suction end of a 12 in (305 mm) fan, the air velocity will drop by 90 percent compared to only a 3 percent drop on the supply side.