Smoke Leakage Tests for Door and Shutter Assemblies

TESTech Instrument (Suzhou) Technologies is one of the leading manufacturers and suppliers of smoke leakage tests for door and shutter assemblies in China. Welcome to wholesale premium test equipment at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.

This test system evaluates the smoke sealing performance of doors or shutter assemblies under different temperatures during a fire.

During a fire, doors or shutters act to block smoke, so that the area on the other side is affected as little as possible by fire and smoke.

According to GB/T 41480, the test method uses air to simulate smoke and measures the smoke leakage rate from one side of the door or shutter to the other under specified test temperature and pressure differential conditions for ambient-temperature (cold) smoke and medium-temperature (hot) smoke.

• The combustion chamber is constructed from Class A fire-resistant rock wool color steel panel material, with an opening for specimen installation to form a sealed space. The opening size is not less than 3 m x 3 m, and the internal depth of the furnace body is greater than 700 mm. It can accommodate specimens installed in auxiliary and support structures.
• All internal fixtures are made of stainless steel for good appearance and corrosion resistance.
• The test room reserves inlet and outlet pipe openings with diameter 80 mm.
• The equipment is provided with auxiliary structure and support members for installing and fixing the door or shutter in the opening area.

• Inlet pipeline made of 304 stainless steel, diameter 80 mm, pipe length greater than 1200 mm.
• Equipped with a high-temperature-resistant pipe flowmeter, diameter 80 mm. The flowmeter is installed at a distance of not less than 9 pipe diameters from the air source and not less than 5 pipe diameters from the test wall.
• The inlet pipeline is equipped with a USA-imported Omega thermocouple for real-time monitoring of inlet pipe temperature.
• The supply fan is an industrial hot-air blower with maximum air supply above 10 m3/h and adjustable outlet temperature from 0 to 300 degrees C.
• The inlet pipeline is equipped with an intelligent electric regulating valve for real-time monitoring of air inlet flow, with adjustable inlet speed from 20% to 100%.
• A pressurizing fan is provided to generate a pressure differential of more than 55 Pa between the inside and outside of the specimen.

• Outlet pipeline made of 304 stainless steel, diameter 80 mm, pipe length greater than 1200 mm.
• Equipped with a high-temperature-resistant pipe flowmeter, diameter 80 mm. The flowmeter is installed at a distance of not less than 9 pipe diameters from the air source and not less than 5 pipe diameters from the test wall.
• The outlet pipeline is equipped with a USA-imported Omega thermocouple for real-time monitoring of pipe temperature.

• The test device is equipped with a circulating air heating system. During medium-temperature testing, it can heat the circulating air to (200 +/- 20) degrees C and maintain the temperature within this range for a certain period.
• Equipped with a high-temperature-resistant pipe flowmeter, diameter 80 mm. The flowmeter is installed at a distance of not less than 9 pipe diameters from the air source and not less than 5 pipe diameters from the test wall.
• The inlet pipeline is equipped with a USA-imported Omega thermocouple for real-time monitoring of inlet pipe temperature.

The differential pressure measuring instrument shall have at least two pressure sensors. The measuring probes are installed inside the test chamber at the center, at a distance of (100 +/- 10) mm from the inner surface of the specimen. The pressure difference measuring accuracy inside the test chamber shall be +/- 5 Pa or +/- 10% of the measured value, whichever is smaller.

The instrument used to measure atmospheric pressure shall have a measurement accuracy of +/- 5%.

Suitable instruments are used to measure the gas volume V and temperature T supplied by the air supply system. The supply system shall be capable of compensating for the total smoke leakage of the test device and specimen, with supply capacity not less than 55 m3/h and accuracy of +/- 1 m3/h.

• Standard control cabinet with computer and Labview intelligent control system, capable of automatically completing the test and automatically acquiring various signals.
• Labview experimental control software with clear interface, easy understanding, and optional Chinese or English interface. Calibration mode, standardization mode, and test mode are provided.
• Accurate display of smoke transmittance, smoke density, and MOD mass optical density versus time curve.
• Branded computer generates test results and can output calculation results and print them.
• Data acquisition system provides model and functional combination of the test modules for technical explanation.
• The control system is equipped with power failure protection.
• Voltage: 220V; power: 4 KW.

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