Sales from Buffalo, New York Blower - air handling units, industrial fans, high pressure blower ventilators, air moving power fan ventilators and industrial AHU airhandling blowers. Engineering of gas and electric heated air handling units AHU. Quick delivery of packaged air handling units in Buffalo - New York.


Air Handling Units and Heat Exchangers


Air Handling Unit
Class 1 Air Handling Units

Clean room, pharmaceutical, surgical and other industrial process applications require equipment with quality levels far above what would normally be sufficient for most buildings. Class 1 air handling units exceed even the most stringent industrial standards for quality with state-of-the-art tongue and groove construction. Class 1 air handling units are engineered to meet the highest levels of efficiency, acoustics, air quality, reliability and servicability. Class 1 is available with factory witness testing of airflow, vibration, sound power, cabinet leakage and panel deflection providing customers the added assurance that their concerns have been satisfied.

Air-handling unit AHU
Class 2 Air Handling Units

Schools, hospitals, offices, automotive manufacturing and many other industries often desire to have quality custom air handling units instead of standard commercial units, but have significant budget constraints. Class 2 air handling units represent a lower cost solution that has been specifically engineered to allow for quality custom design. Class 2 units have an integral welded structural steel tubular frame that allows for infinite custom airflow configurations. The welded frame construction provides for efficient assembly, thereby minimizing manufacturing costs. An added feature is high structural integrity that far exceeds standard commercial grade units and assists in providing a 40 year design life.

Designers of Madok heat exchangers, stainless steel pressure blowers, induscr draft ventilators, force draft ventilators, leader ventilators, high pressure centrifugal blowers, high CFM axial fans, high air flow ventilators, dust collecting fans, radial pressure blowers, vacuum blowers & fans, stainless steel ventilation fans, air handling fans, airhandling blowers, FRP pressure blowers, SST pressure fans, oven & dryer circulation fans, drying blowers.
Industrial Process Coils

Industrial processes often require heat transfer coils with features that far exceed commercial HVAC coils. Industrial coils are available in a wide range of special materials and thicknesses designed to meet the rugged demands of industrial applications. Our industrial process coils are perfect for chilled or hot water, brine solutions, refrigerants or steam applications. Industrial process coils feature continuous plate type fins and staggered tube arrangements offering the best engineering balance between heat transfer, air flow resistance, strength and maintenance. Each industrial process coil tube is supported across its entire length by the fins, providing a rigid coil of unmatched strength and durability.

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Quick supply of idustrial axial fans, air circulation ventilators, warehouse ventilators, high volume ventilation fans, hot air ventilation fans, industrial exhaust fans, portable industrial blowers, garage ventilators, PRV roof fans, explosion proof pressure blowers, wall ventilators, fan wheel blades, combustion pressure blowers, pvc ventilators, ID fans, FD fans, force draft ventilators, induse draft blowers, propylene & FRP PVC ventilators, spark-resistant blowers, sealed ventilators, dust collector ventilators & fans.
Variable pitch axial flow fans are special type of axial fans with adjustable impeller blades that are built to handle broad operating ranges in critical industrial applications. These fans include an internal mechanism that can automatically adjust blade angle while the fan rotor is in motion. Due to their compact design and high efficiency, most of the variable pitch axial flow fans find applications in the thermal power stations where fresh air is needed (forced draft) or process involving high temperatures such as in boilers (induced draft). These type of fans are proven to have negligible loss in power at the output and hence they are also used in pulverizer air fans and flue gas desulphurization (FGD) applications.

Among the single and multi-stage designs, the two stage variable pitch axial fans with variable blade pitch angle find wide usage in many industrial processes. It is also simple to maintain the fan system as most of the critical parts such as rotor - consisting of the impellers, the main bearing assembly and the propeller blades are isolated as separate units for easy accessibility.

Types of variable pitch axial fans:

Depending on the number of propellers present on the shaft the variable pitch axial fans are mainly divided into two types.

Single stage variable pitch axial fan

Single stage variable pitch axial fan consists of a single propeller on the shaft.

This system is capable of delivering high volumes of about 1000 m3/s at pressures up to 15 kPa.

Two stage variable pitch axial fan

Two stage variable pitch axial fan consists of two propellers mounted on a single shaft and the propellers are separated by guide vanes.

This type of fan can deliver high volumes relatively at high pressure when compared to single stage system. (1000 m3/s at 30kPa.)

As this system consists of two propellers in a single unit, it has reduced shaft length with minimum overall dimension resulting in compact system. This rigidity in spacing adds as an advantage in eliminating the problems of resonance and vibration at the work place.

Working of variable pitch axial fans:

The main parts that are used in varying the pitch of axial fan are hub spring, diaphragm, blade shafts, rotary air/gas joint and valve positioner.

When air/gas stream falls on the propeller blades, it tries to rotate the blades. The hub spring creates a movement which helps to rotate the blade in opposing direction. The rotation of blades due to air/gas stream, exerts pressure on the diaphragm to oppose the hub spring movement and this creates a variation in blade pitch. The amount of pressure exerted will determine either the amount of air/gas flow or a complete change in the direction of air/gas flow.

The basic design and operation is similar for both single and double stage variable axial fans except the later one contains two propellers.

Comparison - Axial Fan vs Variable Axial Fan

Output volume

Variable pitch axial fans with varied blade angles can deliver higher volume rates when compared to fixed blades of normal axial fans.

Energy consumed

As the air/gas pressure is controlled automatically by the fan by varying the pitch of propeller, there is no need for an throttling device which consumes extra energy for its working. As the stress acting on the blades is also less, the total load acting on the motor remains constant. In case of fixed axial blades a throttling device is to be supplied to control flow pressure, which consumes energy and the blades of the propeller are subjected to high stress enforcing extra load on the motor.

Variable pitch axial flow fans are specially designed to serve specific requirements of industrial applications because of their instantaneous blade adjustment capability, higher efficiency and sustainability for higher temperatures.