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How to choose waterproof air vent valve (1)

Publish Time: Author: Site Editor

1. Select according to the air permeability

      The purpose of installing the vent valve is to maintain the air pressure balance inside and outside of the cavity, so we need to calculate the gas pressure change in the cavity and the air permeability of the air vent valve per unit time, and the matching between the two is appropriate. The air permeability of the air valve is mainly determined by the air permeability film inside, and the porosity on the air permeability film is the key to determine the air permeability. Using the closed chamber gas balance formula P = V / T * constant (T is absolute temperature, 273 + C), according to the actual equipment data to calculate the results, so that you can pick out the appropriate air vent valve.

      Shanghai Pinji Electronic Technology Co., LTD. is one of the professional wiring equipment enterprises that engage in development, design, manufacturing, sales and service. Products range: junction box series, nylon cable gland series, metal cable gland series, air vent valve series, corrugated conduit series, watertight corrugated tube fitting series, quick connector series, rubber series etc. At present, the company has obtained CE, UL, TUV, IP67 waterproof and other certification certified by EU system. Our products are designed and tested to meet a wide range of applications, even under the most severe conditions.