Second slide the duct clamp over the duct. Duct splitter damper directs a certain quantity of air into a given duct. Since HVAC systems account for about 40% of a building’s annual energy usage, it’s imperative that you’re using not only quality equipment but the most efficient and easily installed spiral duct and spiral fittings, as well. This length is vital for ensuring the proper flow of air distribution along the duct. EASTERN TIGHT ROUND SPIRAL DUCT AND FITTINGS CONSTRUCTION STANDARDS Gauge selection for galvanized steel (ASTM A653) or paint grip. The normal lead time for custom fitting is between 7-10 days. Spiral Round Duct. X 4 in. Yes, Biyang has other designs of duct transitions that depend on the design of your ductwork. First, expand the duct clamp by turning the screw in an anti-clockwise direction. round duct fitting for split ok, HVAC guys, I need your help on this. Yes, Biyang offers standard samples for fittings free of charge. You can do this by getting the product of two adjacent sides of a rectangular duct. Model #GVL0031-A. Each of these materials has its advantages and limitations for use. The round duct has a perimeter of 4.7 feet and cross-sectional area of 254.5 square inches, whereas the rectangular duct has a … Biyang offers a wide range of ventilation duct system, including exhaust ventilation, supply balanced ventilation duct system, and energy recovery system. In stock and ready to ship. rev:01/08/10 The static pressure of the other hand refers to potential energy measurement of air unit at a given cross-sectional point of a duct. The material used in the manufacture of pipes is a long rectangular sheet which is flat and welded into a round shape that is open-ended. It has the overlapping type and also clip type. The main difference between these two-duct splitters is the number of minor ducts each consists that facilitates airflow. Next, insert the duct over your preferred fittings that it attaches to. Quick-Disconnect Duct and Fittings Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems. Only use wrenches on the hex section of the flexible duct connector fitting. R6 duct insulation sleeve is less efficient when it comes to heat insulation than R8 duct insulation sleeve. These rectangular duct sizes are compatible with different types of ductworks. They are flexible, allowing for bending in tricky places. 3-way duct splitter splits the main duct into three minor ducts which direct the flow of air into three different directions. HVAC ductwork transition assists in changing the shape of your ductwork. Duct transition in ductwork helps in changing the shape or size of the ductwork. In addition, based on different pipes, Biyang provides different sizes to meet your requests. Spiral Pipe and Fittings Product Pages Single Wall Spiral Pipe Specifications for HVAC Industrial Ductwork Sheet Metal Connectors, Inc. spiral pipe is formed from a coil of metal into a rigid steel tube with a 4-ply spiral lockseam. It refers to a technology of ensuring proper indoor and vehicular ventilation and thermal comfort. The best hose clamp for spiral duct is the spiral clamp whose design helps in minimizing damages to the duct during fastening. You can apply it on top of the old insulation or if it is completely worn out, consider replacing it. Spin-in collars reduce the installation time of a duct branch line by eliminating the need for screws to hold it in position. Prevent over bending of the flexible duct connector. This is the area of your round duct in square inches. They also evenly distribute the weight of the ductwork at each hanger. The best material for ductwork fitting is galvanized steel or stainless steel due to the various advantages it offers. For round duct, use the equation π x r² where A is the cross-sectional area, π is 3.1459 and r is the radius in feet. 10" 90 Deg. Leaks reduce the amount of air flowing through your ductwork and in return, increases your energy bills. We manufacture round spiral pipe, longseam pipe and fittings from a variety of gauges and materials including galvanized, galvaneal, aluminum, PVC coated, stainless steel and carbon steel in singlewall, lined and doublewall configurations. All Right Reserved. Depending on the season and the temperature, this part can be turned on to warm the air as it flows over it. Contact Us Now. Using a knife, cut the insulation to the width required for it to fit correctly around the duct. Biyang strictly follows the customer’s steel thickness requirement. Sort By Featured. This causes the refrigerant to evaporate, resulting in a hotter gas. It also depends on the airflow requirements per cubic foot. Alnor round spiral ducts and ductwork elements are manufactured according to Swedish Technical Approval no. sizes of round duct and fittings under negative pressure require reinforcing as shown on the gauge tables (see page 2-2). Lastly, use the screw to hold the register duct boot firmly in place tightly. FREE Shipping. ectangular duct width or height of 2450mm and larger requires uangyih-tech engineering review. This will help you select the appropriate size of a duct fitting that you want for your HVAC system. ound duct greater than 2100mm diameter requires uangyih-tech engineering review and approval. For instance, if your radius is 4 inches, its square is 16. Yes, Biyang provides drawing for custom items with a lead time of between 2-3 days. The round profile greater flow efficiencies than rectangular ducts. to a 96-in. $22.99 $ 22. There is an electric fan that facilitates the process of pumping out this air. Remove such tapes and replace with new ones. IMPERIAL. Yes, there are standard rectangular duct sizes that can fit in different ductworks. We supply our round duct and fittings with a wide variety of connecting systems. Choose a rectangular duct with the same area as that of your round duct. These products include Duct Connector, HVAC Elbow(or Duct Elbow), Duct Reducer, Duct Boot, Duct Splitter, Plenum Box, HVAC Saddle Tap, Flexible Duct Connector, Line Set Cover, Aluminum Foil Tape and so on. CFM is the measure of airflow between two points within a duct due to the differential pressure between these points. Example of Duct Fitting Loss V u = Upstream velocity of fitting H = Height of the duct W = Width of the duct R = Radius of the bend Θ = Angle of the radius Calculate the pressure loss of the duct fitting in a 600mm W x 200mm H duct with a radius of 600mm and a 90° Bend angle. Also, consider the size of your blower or fan. Duct boots are useful in changing the direction, shape, and size of your ductwork like replacing your ductwork from rectangular to round or square to round. With different parts, you can cover the different shapes of pipe and the pipes through the wall as well. Houston, Texas 77029 Phone: (713)678-8471 Fax: (713)672-0509 Toll-Free (877)774-DUCT (3828) It is this hot gas that flows from inside the room to the outside into a compressor that is outside the building. Ltd. - Offering Round Duct Fittings, डक्ट फिटिंग, New Items in Midc Industrial Area, Navi Mumbai, Maharashtra. In addition, our sales will have a 24/7 service to make sure your products and projects are well maintained here. Take the width and height as the actual fitting dimension of the rectangular HVAC ductwork. How to Install a Spin-In Duct Fitting. Static pressure results in the application of more force while delivering little air circulation. AC ducts are conduits that deliver and remove air from a room ensuring proper air conditioning. Lastly, its installation cost is far less than that of rectangular ductwork. Get connected… We supply our round duct and fittings with a wide variety of connecting systems. Calculate the diameter by dividing the circumference by pi (3.14). Biyang Stainless Steel Jacketing for Insulation is an open tubing, made out of stainless steel 304 or 316L. They also offer strength and rigidity, which means it will cost less in maintenance as well as the toughness your ductwork needs. Any mishandling of the flexible duct connectors results in their failure during the operational period. It also produces less noise, which can be a nuisance to the occupants of the room. If you feel any air oozing out by placing your hand around here, then there is a leakage. Sometimes, you will have to use the exact same HVAC Duct Fittings for replacement. Check to ensure that the duct is insulated correctly. Duct Direct 8610 Wallisville Rd. Biyang HVAC Duct Fittings, also named Ductwork Fittings, are the important parts among ductwork parts for connection or transitions, protection and decoration purposes. It can cover all your air conditioning pipes and other exposed as well. Fabrication of circular ducts takes into consideration the flow of fluid at varying temperature, pressure, and flow rate. 55. Static pressure differs depending on the size of your ductwork. You also need to consider your HVAC system material. If the duct filters have become old, you can consider replacing them for efficient working. Round ductwork is ideal for directing the air that has a low-pressure drop. We pioneered the manufacture and use of spiral duct and fittings for heating, ventilating, and air conditioning (HVAC) in the USA. Cut the register boot to the appropriate length. Fiberglass is available in different R-values and thickness. 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