I will show the formula for calculating the opening rate.
【Calculation Formula for Opening Ratio】 The opening ratio is the ratio of the D dimension multiplied by the number of blades (N) to the H dimension. Opening ratio α = (D・N/H)✖100 As the D dimension increases, the opening ratio increases.
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【Practical Examples】 ■Soundproofing equipment for air conditioning outdoor units ■Rainproof louvers for ventilation fans ■Others *For more details, please refer to the PDF document or feel free to contact us.
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Noise is described in the Kojien dictionary as "loud and noisy sounds" and also as "unnecessary sounds that are a hindrance for a certain purpose." How to prevent unpleasant noise that resonates in our ears... this is a significant theme for us modern urban dwellers. "Soundproofing" can be broadly divided into five techniques: sound insulation, sound absorption, sound cancellation, vibration isolation, and acoustic blocking. Our company has developed unique soundproofing technologies represented by these five, and we respond to soundproofing measures in all situations.