Pdf the earthquake resistance of buildings can increase by using of special ingredients which are working as hysteretic dampers. Configuration dampers less than 96x74 inch size have a single actuator location. Feb 08, 2016 functions of a volume control damper in a hvac system february 8, 2016 july 12, 2016 jiya patel industrial equipments hvac equipment, pipe suppliers in uae, volume control damper a volume control damper is an essential part of any hvac system that is to run smoothly and efficiently. Flow control oval wheel volume meter flow meters flow data sensor limit switch air operated flow control valve manual flow. Prds supply pressure regulating damper 35 kdxvw 3uhvvxuh 5hjxodwlqj dpshu. Aluminum manual volume air control dampers rectangle type for hvac system. The damper is used for regulating air flow or as shut. Actuators may be manual, electric or pneumatic and are mounted out of the air stream. A wozair volume control damper is simple and costeffective, yet will perform well in high integrity applications and is incredibly customisable. The pq profile is made of galvanized steel sheet and used for joining rectangular. Suitable for mounting to duct lines, building sidewalls or shafts to control volume of supply, exhaust, fresh or pressurized air automatically. Fix the damper with flange or nuttbolt and apply duct sealant. This video shows the motorised volume control damper. Volume control damper kyodo reserves the right to make changes without written notice.
The hood shall have 3 incandescent lights evenly spaced along the length of the hood. Volume control damper vcd flanges type ksa, uae, kuwait, egypt, oman, bahrain, qatar, north duration. Before installation check any physical damages on the dampers. See, for example, the appropriate sections of chapter 11 of volume 1 gasfired furnaces. Usable for adjusting the air volume at supply and return air ducts. When the blades are vertical, their weight forces the blades toward the bottom part of the frame. Volume control damper spk 30 series flange type right to alterations reserved. The access door shall include a modulating damper motor connected to a junction box with a cat5 connection. Volume control damper spk 30 series amca test figure 5.
If the blades are vertically mounted, then thrust washers are necessary. Hvac control dampers commercial control dampers are used in buildings to regulate the flow of air in an hvac system. Volume control damper on sales quality volume control. The spring air systems zm zoneflow is designed to be installed in a commercial kitchen nfpa96 exhaust duct to automatically modulate or balance the exhaust air volume between multiple hoods connected to a common fan. Avarage chasis and blades are made of galvanised steel sheet or aluminum profile. Hvac dampers installation method statement method statement hq. They are used to control airflow through ventilation systems. Volume control dampers are available in either manual or motorised configurations and are constructed from high quality, long lasting marine grade aluminium. Dampers can be manual with locking quadrant or motorized with a wide range of electrical actuators readily available.
Available in both nonisolating flow control vcd and isolating flow control manual isolation mid, these dampers are suited to highintegrity application where lifespan and simplicity are key, with optional atex third party approval. Designed for use in heating, ventilating and air conditioning systems. Volume control damper vcd achieve simple and cost effective manual flow control application with the wozair volume control damper vcd. Cdrs25n1b12 cdrs25 round steel control damper, with seals and actuator mounting plate, 12 diameter.
Control dampers are specially designed so blades are all perpendicular to the fan shaft. Cosmos volume control damper are manufactured with high quality galvanized material as per the industries norms. Unless specified, otherwise damper comes without matching flange. Length of damper blade exceeding 1200mm is supplied with intermediate mullion. Modulating control damper hvac ventilation control wozair. These volume control dampers are installed in branches of air distribution duct. The rigid twin skin aerofoil blade design has enhanced stiffness which permits individual blade lengths of 1200mm to be used without the need for centre mullions.
A duct damper is a device used for controlling the direction or volume of air flowing through a duct. The performance of the parallel or opposed blade design for clean air systems allows superior performance in both constant and. A volume control damper works in tandem with the vav or variable air volume system in a hvac system, which regulates heating and cooling for the occupants and residents of the building there are many different types of variable air volume boxes, but they all have the same function to. Round control dampers cdrs25 series ordering information example. Blades and frame are constructed of high quality corrosion resistant galvanised steel. Manual volume control damper shall be specified as model manvcd manufactured by qae for manual operation. Choose from both rectangle and round configurations designed specifically for things like safety applications, lowleakage and heavy duty industrial needs, and backdraft for pressure relief. Centrifugal fan with outlet damper outlet volume control dampers regulate the airflow by the modulating of damper blades. Galvanized round duct volume control damper with quadrant handle ideal for use in branch duct lines for adjusting supply or return air volume. The damper has been designed to meet the requirements of the offshore oil and gas and nuclear industry. Determine the position of the damper to be fixed on the duct from the construction drawings. Dampers 96x74 and less than 144x74 are made of three sections, and have two actuator locations, one with two thirds of the area and torque, and the other with one third.
Our success to date is as a direct result of combining a total commitment to customer service with. Commercial control dampers are used in buildings to regulate the flow of air in an hvac system. Single skin volume control dampers designed for quiet, efficient and reliable air volume control in ventilation and air conditioning systems. Designed to provide positive control of airflow within ventilation and air conditioning systems. Flamgard calidairs volume control dampers are designed to provide dynamic control of airflow in ventilation systems. The performance of the parallel or opposed blade design for clean air systems allows. Volume control dampers dampers manufacturer company airwellcare manual or automatic control dampers can be used to regulate the airflow, depending on the zone area requirement, thus conserving the energy and substantial benefits and savings to the user as well facilitate to regulate overall comfort of the environment. Volume control dampers lindab we simplify construction. Ruggedly built damper, with casing of robust assembly formed from channel frame for flanged connections to ductwork. Greater in damper aspect ratio will reduce leakage shown in this chart. Vcd rvcd mvcd features vcd, rvcd, mvcd order key accessories additional angle flanges x 2 with matching holes to damper to be fixed to the duct and connected to damper. Control operation is done manually by using wormgear as standard.
Available in a range of format adjustment systems to suit most installations. Vcd041 volume control damper volume control damper by. The volume control damper is installed in hvac systems where is necessity for. Along with our standard range we can also custom make any damper to suit your specifications and or decor requirements. Damper outlet volume yes yes no no yes yes no control damper ball bearing manual worm gear construction features matching dampers with fans due to continuing product development maximum temperatures and static pressures may change. The published sealing performance is calculated in accordance with amca standard 500d and is a statement of the worstcase performance based on testing various damper sizes. Blades are coupled by toothed nylon gears which provides opposed blade operation. Ac112 round single blade volume control damper a260dw round single blade dual wall insulated volume control damper a56 rectangular airfoil multiblade aluminum control damper with transitions a70gl round single blade galvanized steel damper with honeywell actuator a70glzip round single blade galvanized steel damper for remote location a70r round single blade galvanized steel.
The flow can be controlled with the help of set screw provided on the damper handle to regulate the desired air flow. Contact wozair hvac specialists to find your damper today. View pressure, set point, motor position and status. A volume control damper is an essential part of any hvac system that is to run smoothly and efficiently. Volume control damper round volume control damper vdr the frame and blade in round volume control damper are made of 0. Special multi section assembly with heavy duty jack shaft 5 leakage chart is based on damper with standard construction having aspect ratio of 1.
The modulating damper motor requires 24vdc power and a 424millamp control signal. The actual product might differ from pictures shown. For example, in a house, the main floor may be served by one heating zone while the upstairs bedrooms are served by another. Flanged models have mechanically fixed 65mm deep casings, providing a robust, lightweight construction. Features include a sturdy galvanized steel hat channel frame with dieformed corner gussets for reinforcement and superior structural. Enclosed linkage mechanism, opposed aerofoil blades. On the other hand, manual dampers need many more hours of adjustment, and means of flow measurement. The vc22 volume control damper is designed for all types of round duct applications such as variable air volume systems, etc.
A device used to control the volume of air passing through a duct or air. Nca series 900 volume control and shutoff dampers have been tested against. Single and multiblade volume control damper are designed for quiet, efficient, and reliable air volume control in ventilation system. Today, we offer a complete line of hvac dampers and air control products including volume control. A building which merge a momentresisting frame with a. Exhaust volume control dampers general description zm zoneflow series.
They can be used in intake, exhaust, or mixed air applications. Control dampers are usually installed with the blades horizontal, so the width is the dimension in line with the blades. Back draft damper is designed to prevent backflow when fan motor is off and to open when fan motor is on. In order to improve efficiency and occupant comfort, hvac systems are commonly divided up into multiple zones. Compatible to any wall mounting and duct mounting applications. Feb 03, 2017 volume control damper vcd flanges type ksa, uae, kuwait, egypt, oman, bahrain, qatar, north duration.
Md electric actuator 1 40 listed height 40 frame, galvanized steel sheet axle. Cosmos round damper allows even distribution and control of airflow under conditions of high duct pressures. M are cosmos standard volume control dampers, used for manual or motorized volume control in ducts. The ratings shown are based on tests and procedures performed in accordance with amca publication 511 and comply with the. Damper for manual regulation and control of airflow in rectangular ventilation ducts made of galvanized steel sheet. Volume control dampers airtech hvac duct manufacturer. Other control options are available including extended shaft for connections to electric or pneumatic actuators. Cast aluminium locking quadrants can be fitted to enable manual operation. Model a for square or rectangular flange duct connections. Very large units may need to be made in separate sections for joining together on.
Spk 30300 december 19, 20 right to alterations reserved. Dimensions 100x100mm to xmm 100mm to mm o mounting options. The damper area is sometimes used for other purposes such as directing an airstream to go in a certain direction by aiming the blades at an angle forcing the air to turn, or be mixed with another. Functions of a volume control damper in a hvac system. Ltd provides high quality motorized volume control damper which comprises superior air control, high performance, and sustainable energy efficiency.
Joints are welded and protected by aluminium spray coating to prevent rusting. We offer volume control dampers that are manufactured for governing air. The main purpose of a control damper is to control airflow whether full open, full closed, or modulating the amount of air flowing through the damper. Electrostatic powder coating with the color from ral catalogue. There are two categories of control dampers commercial volume control dampers and balancing dampers. The ajs range of volume control dampers, have been designed specifically for ease of balancing airflow through ducting systems. Drawings are not meant to show exact details of every aspects of the product. Nov 18, 2017 this video shows the motorised volume control damper. Iso 9001 2008 certified 21985 duct damperssilencers. A zone damper also known as a volume control damper or vcd is a specific type of damper used to control the flow of air in an hvac heating or cooling system. Manufactured range volume control damper quality air. Inlet and outlet january 1999 dampers for centrifugal fans.
Motorized volume damper concealed linkages out of air stream. The fsdc motorised failsafe single blade firesmoke damper has adjustable blade position facility to additionally allow for volume control air balance setting. Find details of companies offering volume control dampers at best price. We offer one of the widest ranges of grilles, diffusers, louvre systems, volume control dampers and fire dampers available from any uk manufacturer, with our range being constantly expanded to suit new industry requirements and customer demands. Damper height exceeding 300mm supplied in multiple blades. Modulating control damper mcd high quality engineering meets cost effectiveness with the wozair modulating control damper mcd. Manual hand control options with visual openclosed indication. At johnson controls, we offer damper controls in a diverse range of models. Inlet box dampers have the same standard and optional construction features as outlet volume control dampers. About volume control dampers specialising in high quality extruded aluminium and upvc units, the hvc range of dampers includes volume control, shut off and non return dampers. The electric actuator, wiring and terminal are also completely equipped.