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PER-100-125 Plenum Box

smoke extract fan

PER plenum boxes are manufactured from hot-dip galvanised sheet steel with connection sleeves fitted with a rubber seal tested for air-tightness. Acoustically insulated with basotec material. The PER plenum box can be used for both supply and exhaust air. To ensure correct settings, there must be a straight length of supply-air duct, its length equivalent to 4 times the duct diameter, before the plenum box.

The PER plenum box is used together with air diffusers for pressure reduction, air-flow balancing and sound attenuation as well as for measuring and adjusting the air flow. The damper and measuring units are removable. The K factor for adjustment is indicated on the damper itself and also in the guide to adjustment entitled “K factors”.

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Our products

NGM Company is one of the largest suppliers of fans for use in various building ventilation applications.

NGM Company supplyes our clients with a full range of air terminal devices.

Regulating efficiently the natural environment, NGM Company's units can create silently the perfect indoor conditions; your conditions!