Easy Offset 與 Ductulator - Duct Sizing 使用情況與統計

Easy Offset is an easy to use program designed for the HVAC industry that calculates cut joints, elbow centerlines, and overall lengths for offsets of any angle. Saves time: -faster than using a calculator -improved accuracy -no multipliers or trig formulas to remember -reduces errors -minimizes cutting in the field and wasted material -use any angle -useful for field layout and detailing Types of Offsets: -round elbows -rectangular elbows with radius heel and throat -rectangular elbows with straight heel and throat -round taps on an angle -rolled nineties -wye branches

Apple App Store
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Ductulator - Duct Sizing

The Duct Sizer App designed based on surveying the needs of engineers. This is a much faster and versatile equivalent of the duct sizing charts provided by top HVAC manufacturers. Get a range of suitable duct sizes by inputting either the maximum friction rate or maximum velocity. Duct sizing for both rectangular and circular ducts. Tap on the values for velocity or friction to switch between calculation methods. Users can change between I-P and S-I units by tapping the toggle switch at the top. The detailed sizing mode allows the Engineer to adjust the duct dimensions and air flow rates, while checking the resulting friction rate and velocity which update automatically. Detailed sizing mode is typically used to analyse existing duct systems. Calculations are based on standard air 0.075 lb/ft3 (1.2 kg/m3) in clean galvanized steel or non-metallic flexible ducts. Any feedback is welcome, and will be the basis for future updates.