It is installed at the end of the ventilation and air conditioning system required by fire prevention. When a fire occurs and the temperature in the system pipeline reaches 70°C, the tuyere closes and the fire source is cut off at the air supply and exhaust outlet. When reset, first remove the tuyere, replace the new fusible ring, and then adjust the valve opening, install the tuyere. If the fire vent is linked with the fan, it should be equipped with a double micro-switch device.

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  CCCF certified products

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  CMA metrological certification

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  National quality supervision, inspection and certification

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  China recognizes the joint symbol of international mutual recognition

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  China recognizes the joint symbol of international mutual recognition