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    What are the technical requirements for positive pressure explosion-proof certification of products?

    SINO Testing Services

    | 2024-01-12|Return

    Positive pressure explosion-proof refers to the introduction of clean air or inert gas into the interior of the equipment, causing the internal pressure of the equipment to be higher than the external explosive environmental pressure, isolating explosive mixtures from entering the interior of the equipment, in order to achieve explosion-proof performance. Simply put, it means artificially creating a safe environment in an explosive environment.


    The applicable standards for positive pressure explosion-proof certification are GB/T 3836.1 and GB/T 3836.5, which mainly evalsuate whether the equipment's ventilation time, pressure monitoring system, pressure range, blowing, alarm, etc. meet the explosion-proof performance requirements.


    Positive pressure type has three explosion-proof levels: pxb, pyb, and pzc. Suitable explosion-proof certification levels can be selected based on product structure, explosion-proof area, etc.


    Zhongnuo Testing has been engaged in the explosion-proof industry for many years, familiar with the requirements of the GB/T 3836 series standards, and has rich experience in certification in the field of positive pressure explosion-proof. It can provide one-stop explosion-proof technical guidance and consulting services such as early positive pressure explosion-proof design and rectification, drawing evalsuation, installation guidance, and certification. Our successful cases include positive pressure ultrasonic vibration plates, positive pressure omnidirectional antennas, positive pressure film thickness meters, etc.


    If you have any needs in this area, please feel free to send us a private message at any time!


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