IP 68 пластмассовый M12 винтовой клапан вентиляционный штекер M12 вентиляционный штекер для осветительного оборудования

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The harsh or constantly changing environmental conditions make the sealing rings of outdoor equipment producing the stress, which causes the sealing ring to lose efficacy, causing the dirt to enter the equipment and damaging the sensitive electronic parts.In order to prevent the occurrence of low pressure, high air humidity or condensation in the equipment, and to obstruct the entry of solid and liquid contaminants, it is necessary to ensure the continuous pressure balance and air permeability.