![]() ![]() For example: If you measure a circumference of 471 mm, divide by 3.14 and you will know that the diameter of your spiral duct is 150 mm. In this case, measure the circumference of the duct and divide the result by Pi (3.14). This is not always possible with an installed duct. Want to measure the diameter of your spiral duct yourself? That's possible! The diameter of this product is easy to measure from wall to wall. In summary, the duct is the largest in the beginning and can be reduced as the installation progresses. After that, you can go smaller in diameter because you need less air further into the system. Often the connection to your fan or MVHR unit will determine the diameter of your ductwork. This will promote airflow and ensure that the fan works as well as possible. For longer distances, choose a larger diameter. ![]() The choice of diameter is based on the amount of air moving through the duct. We supply spiral ducts in a range of diameters: from 80 mm to 200 mm. For larger systems we recommend our Angle Rings (RING and RING-U).Now that you know you need a spiral duct to ventilate your home, you're probably wondering: which one do I need? To save you time, we'll explain which duct is right for you. There are Easy Connect Sleeves (ECS) and Inside/Outside Couplings (IO). We also have other options for connecting the components. Later if you wish to change your system, using a razor blade you can easily cut the silicone. ![]() By making a chemical bond, the silicone makes the connection airtight. The first is of a grid design and comes in 2 sizes. The finished look is modern and attractive. They install simply and conform to the diameter of the duct. Wipe the silicone around the outside of the connection. Our company was founded with the idea that spiral registers and grilles were too difficult to order and install, and often unattractive after installation. Secure the connection with pop-rivets and silicone caulking. A small-end coupling is used to connect sections of pipe (COUP). A large-end coupling (COU2) is used to make fitting-to-fitting connections. Fittings and small-end couplings are male-end to slip into pipe and flexible hose. This is similar to the way plumbing fittings are connected. How do you make pipe connections? We use the small-end (male-end) and large-end (female-end) method of connecting the components. Spiral Pipe Ten FootĪlso available in 10-foot lengths when you require large amounts for longer runs, call 80 for more info. Minimum required purchase amount of 40 linear feet. Spiral Pipe Five Footįive foot lengths 18″ inch diameter and larger will be shipped by common carrier. Five foot lengths up to 16″ diameter can be shipped via UPS or FedEx Ground for fast delivery. Spiral pipe is commonly used in dust collection as well as other applications such as industrial ventilation, spray booth stacking, welding booths, paper trim, pharmaceutical clean rooms, etc. Spiral pipe and fittings along with our flexible hoses will complete your piping system. All 22 gauge pipe measures 1/16″ less than the noted diameter on the inside (I.D.). It is considerably stronger than longitudinal pipe of the equivalent gauge. Spiral Pipe DiameterĪvailable in 3-inch to 36-inch diameter in five foot lengths. No painting required, will last years outdoors. Stronger than other pipe – Our pipe is up to 20% stronger than smooth pipe systems of the same gauge, due to the added spiral reinforcement. We manufacture spiral pipe in 18, 20, 22, & 24 gauge galvanized metal. Price listed below is per 5 foot LENGTH for 22 gauge galvanized spiral pipe.Ģ0″ and larger, 4 to 10 working days for fabrication.Ĭlick here for pipe weight and here for allowable negative pressures in round ductingĬlick here for instructions on Cutting Spiral Pipe. Please call for pricing.Īlso available in 10-foot lengths when you require large amounts for longer runs, call 20 for more info. Five-foot lengths up to 16″ diameter can be shipped via UPS or FedEx Ground for fast delivery.įive-foot lengths 18″ inch diameter and larger will be shipped by common carrier. Spiral pipes and fittings along with our flexible hoses will complete your piping system. All 22 gauge Spiral Pipe measures 1/16″ less than the noted diameter on the inside (I.D.). Spiral Pipe is available in 3-inch to 36-inch diameter in five foot lengths. No painting required on our spiral pipe, will last years outdoors. Stronger than other pipe – Our Spiral pipe is up to 20% stronger than smooth pipe systems of the same gauge, due to the added spiral reinforcement. ![]()
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