An Air Curtain is a device speciﬁcally designed to provide a resistance to air ow through an opening, without having any physical barrier there. Simply put, an Air Curtain is a fan that is designed with an air Y outlet that has a low turbulent air stream (high laminarity) that can app g be angled towards the incoming air stream in such a manner that the 3 inﬂow of air can be prevented, and thereby creates a seal.
Air curtains can either be re-circulating types, or non re-circulating types.
Re-circulating Air Curtains emit air from a discharge grill on one side of the door opening and collect the air on the opposite side. It is then ﬁltered, sometimes heated, and then is returned to the discharge grille. These units are essentially a modiﬁed heating system and uses large amounts of air. They are usually associated with high initial costs and high operating costs. Also, because the air has to be ﬁltered, the maintenance costs are also quite high. The feature is that they use low velocity air streams, which is desirable in some commercial entrances. They are usually used in supermarkets and store entrances. Non re-circulating Air Curtains are much more widely used. They are characterized by much lower initial and operating costs. As they are not re-using the air, it does not normally have to be filtered and thereby they can be made essentially maintenance free. They are also more effective, as the air streams are narrower and of higher velocities. These are the types that we manufacture.
Interior:Air Curtain are often used at interior doorways of industnal and commercial facilities to seperate environments and to proivide an invisible barrier for protection against drafts, dust, dirt, odors and fumes. Exterior:Air Curtains are not designed for security purposes. They are secondary doors that allow unristricted access to the outside while conserving energy. Also, special types of Air Curtains protect against ﬂying insects, dust and dirt.
|Height Catered||Upto 6.5'||Upto 8'||8' - 14'||14' - 20'|
|Max. Vel. At Nozzle (Meter/Sec.)||12||18||23||30|
|Blower Size||6" X 8" in||Dia. -8" Length - 8"||Dia. - 9" Length - 8"||Dia. - 10 5/8" Length - 8"|
|No. of Fins in Blower||29||40||45||48|
|Dimensions (H x W x L)||11" x 8.5" x E*||15"x11"x E*||18"x14"x E*||23"x18"x E*|
E* - Enterance of door (Width).
|Model No.||Door Opening
|Max. Vel. at Nozzle(m/s)||No. of Motors@H.P.||RPM of Motor|
|MEI/250 D||30" / 8'||18||1 @ 1/3||1440|
|MEI/300 D||36" / 8'||18||1 @ 1/3||1440|
|MEI/350 D||42" /8'||18||1 @ 1/3||1440|
|MEI/400 D||48" /8'||18||1 @ 1/3||1440|
|MEI/500 D||60" /8'||18||1 @ 1/3||1440|
|MEI/600 D||72" /8'||18||1 @ 1/3||1440|
|MEI/700 D||84" /8'||18||1 @ 1/3||1440|