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One of the essential components is the sound control. Centaxia has partnered with well-known manufactures in Canada and the US to study, design and manufacture a full range of silencers meeting all industrial specification. Applications include Dirty air streams, heavy Galvanized & stainless steel and aluminum casings, Anti-corrosive & high temperature paints
Industrial Silencer Series is suitable for many medium to heavy-duty industrial applications where it is desirable to reduce the air turbulence noise emanating from an air handling system. Introducing only a modest pressure drop to the system, these silencers provide good sound absorption characteristics at the medium and high noise frequencies generated by a centrifugal fan. These Dissipative (Absorptive) Silencers are the classical solution for fan noise attenuation and other industrial noise control in up to 450-degree air stream conditions. Typical noise reduction applications include, fan inlet silencers, fan outlet silencers, duct silencers, and exhaust fan silencers.
For highly corrosive applications, try FRP Silencers. Manufactured using a premium vinyl ester resin with C veil in the corrosion barrier, a light-weight Fiber Reinforced Polymer (FRP) Silencer has the ability to maintain strength while withstanding rigorous environments, including exposure to corrosives and condensation
Silencers are available for fan inlets and outlets as well as other industrial ductwork applications.
Industrial dampers are used to control the flow of air through Centrifugal Industrial Fans. Dampers can be attached directly to fans, inlet boxes, or ducts. Many factors should be considered when choosing the appropriate damper for your application, such as airstream conditions, purpose and limits of airflow control, budget and even non-damper options such as VFD control. Additionally, each mounting position has its own operating characteristics which should be understood for a well-designed system and can affect fan selection.
All damper models are available in corrosion resistant stainless-steel construction, aluminum, abrasion resistant material, or high temperature heat resistant alloys. Standard dampers can be modified to suit system design requirements not mentioned here. We can also build custom dampers to your design.
Parallel blade type inlet box dampers may be used to control the airflow through the system. The airfoil shaped blades are parallel to the fan shaft and remain parallel to each other as the damper is closed. Thus, in a partially closed position, a forced vortex with the same rotational direction as the fan impeller will be generated within the inlet box. The effect on the fan characteristics will be similar to that of a variable inlet vane control.
Variable inlet vane dampers (also called vortex dampers) are mounted on the fan inlet to conserve fan horsepower at reduced airflow conditions. They are arranged to generate an inlet vortex (pre-rotation) in the same direction as the fan impeller, causing a reduction in power, consumption as the air flow is reduced. This type of control is most effective when the fan is expected to operate at reduced performance conditions for extended time periods or if the system requires modulation during operation. It will alter the fan operating characteristics and reduce the likelihood of instability. A wide-open VIV will produce a system effect which must be accounted for in the original fan selection.
Outlet dampers, also called volume control dampers, are basic elements which create a variable resistance within a system. If it is desirable to compensate for temporary air density or system resistance changes, an outlet damper may be appropriate. They are the least expensive, but also the least efficient of the traditional flow control devices. Because outlet dampers operate as a resistance in the system, they do not change the operating characteristics of the fan, but merely restrict its flow. Flow restrictions can cause Centrifugal Industrial Fan operation to become unstable and outlet damper use must be considered carefully. Due to efficiency and stability concerns, an outlet damper should not typically be used as a permanent flow restriction. We provide dampers for both ductwork and fan applications.
Opposed blade dampers are built such that adjacent blades rotate in the opposite, or opposed, direction. This style of operation is the best selection for an outlet damper because it offers good control over the entire operating range and maintains an even distribution of air downstream from the damper. The blades are airfoil shaped to minimize the flow restriction of the damper in the open position. Commonly used for cold starting on many air and process gas systems, opposed blade dampers maintain even air distribution downstream of the damper.
Although butterfly dampers are normally associated with ductwork, there are applications in which they have been successfully used on the fan outlet. Generally, the damper would be wide open during normal operating conditions and closed only occasionally, such as at start-up. The fan typically would have a smaller outlet area, and produce a relatively low volume of airflow. We provide butterfly dampers for both ductwork and fan applications.
To reduce vibration transmission to the building and to protect the equipment from dynamic stresses caused by fan vibrations, temperature fluctuations and other sources that can lead to maintenance issues and premature equipment failure and system downtime. Industrial fixable connectors are designed to handle high temperature, high pressure or vacuum, high material laded airstream or aggressive chemicals that are present in an airstream.
Flex material comes in a variety of compounds to accommodate airstream material content and temperature. For negative pressure applications, dirty airstreams or higher velocity flow rates, flex connectors often require internal deflectors to protect fabric. Flow liners also provide improved airflow thru the flexible connector reducing aerodynamic inefficiencies. Flanges and deflectors are constructed from carbon steel, zinc plated carbon steel, aluminum, and stainless steel.
Centaxia uses a variety of quality products produced by a number of established North American manufacturers. Please contact us for specific details for your application.