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Offering you a complete choice of products which include duct leakage testing.
Duct Leakage Testing
Product Price: Rs 1,000 / PieceGet Best Price
Minimum Order Quantity: 1 Piece
Product Brochure
Product Details:
| Testing Pressure Range | 5 bar |
| Material | Stainless Steel |
| Display Type | Digital |
| Finished Product Delivery Type | Home Delivery |
| Ac Voltage | 220 V |
| Temperature | 80 deg C |
| Weight | 5 Kg |
Duct leakage testing is a vital component in verifying the air-tightness of HVAC ductwork systems. It ensures compliance with energy codes, improves indoor air quality, enhances system efficiency, and reduces operational costs. This specification outlines the requirements for conducting duct leakage testing in accordance with industry standards.
2. ScopeThis document specifies the procedures, equipment, acceptance criteria, and documentation required for performing duct leakage testing on newly installed or existing HVAC duct systems. It applies to both supply and return air ducts in residential, commercial, and industrial buildings.
3. Standards and ReferencesDuct leakage testing shall be conducted in accordance with the following:
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SMACNA HVAC Air Duct Leakage Test Manual
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ANSI/ASHRAE Standard 215 – Method of Test for Determining Leakage of Operating HVAC Air Distribution Systems
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ASTM E1554 – Standard Test Methods for Determining Air Leakage of Air Distribution Systems by Fan Pressurization
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IECC (International Energy Conservation Code)
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Project-specific specifications
All test equipment must be calibrated within 12 months prior to testing and include:
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Calibrated duct leakage tester (blower door, duct blower)
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Digital manometer (minimum accuracy ±1%)
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Flow capture hood (if required)
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Temporary duct sealing materials (e.g., tape, plastic)
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Pressure tap and tubing
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Seal all intentional openings: registers, diffusers, and grilles.
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Inspect ductwork for visible leaks or damage.
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Ensure ducts are clean and dry.
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Close all access panels and dampers.
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Connect the duct tester to the duct system through a designated port or removed grille.
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Pressurize the system to the specified test pressure (typically 25 Pa or 0.1 in. w.g. for residential, up to 1000 Pa for commercial).
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Measure leakage airflow in cubic feet per minute (CFM) at the target test pressure.
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Record pressure differential and leakage rates.
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Conduct at least two tests for verification.
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Leakage ≤ 4 CFM per 100 ft² of conditioned floor area (post-construction test)
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Leakage ≤ 3 CFM per 100 ft² (rough-in test with air handler installed)
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Leakage Class defined per SMACNA based on pressure class and duct surface area
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Allowable leakage rates calculated using the formula:
CL = (F × P^0.65) × (A / 100)
Where:-
CL = leakage (CFM)
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F = leakage factor (Class A: 6, Class B: 3, Class C: 1)
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P = test pressure (in. w.g.)
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A = duct surface area (ft²)
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Test reports must include:
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Project name and location
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Date and time of test
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Tester’s name and certification (if applicable)
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Equipment used (make, model, serial, calibration date)
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Duct system description (location, type, area)
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Test pressure and leakage rate (CFM)
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Compliance statement (Pass/Fail)
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Annotated duct layout (optional)
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