Especially ideal for places that do not require forced ventilation or have little inflow of outside air!
Rooftop Ventilation Fan for Hazardous Material Storage Natural Ventilation " (S)D/(S)HD/(S)B" is a natural ventilation system, which means it operates silently without the need for electricity, requires no repairs or replacements after installation, and can be used for a long time. It can be used in areas where a large amount of water vapor is generated and where motor use is not possible. It has a robust structure that prevents rain and wind from entering. The main body is made of Galvalume steel, which has excellent weather resistance. Stainless steel and aluminum options are also available. (Type B is available only in Galvalume steel and stainless steel.) We can manufacture dimensions other than standard specifications according to various applications and locations upon request. For more details, please contact us or refer to the catalog.
Inquire About This Product
basic information
【Features】 ○ No noise due to natural ventilation method ○ No power required, no need for repairs or replacements after installation ○ Usable for a long period ○ Capable of operating in areas where a large amount of water vapor is generated and motor use is not possible ○ Sturdy structure that prevents rain and wind from entering ○ Main body made of Galvalume steel plate, excellent weather resistance ○ Stainless steel and aluminum versions are also available → Type B is available only in Galvalume steel plate and stainless steel ○ Custom dimensions outside of standard specifications can be manufactured according to various applications and locations. 【Product Lineup】 ○ Type D: Fixed type ○ Type HD: Fixed type ○ Type B: Rotating type ● For more details, please contact us or refer to the catalog.
Price information
Please contact us.
Delivery Time
※Please contact us.
Applications/Examples of results
【Usage】 ○ Particularly suitable for places that do not require forced ventilation or where there is little influx of outside air, or when used in conjunction with forced air supply. ● For more details, please contact us or refer to the catalog.
catalog（1）
Download All Catalogs
Company information
Our company was established as Sanwa Shiki Ventilator Co., Ltd. after separating from the manufacturing division of Sanwa Kogyo Co., Ltd. Initially, we mainly manufactured and sold rotary and fixed ventilators, as well as fireproof hoods. We contributed to the development of local industries and built a solid foundation through the trust we received from related parties. Currently, we focus on the development of pressure-resistant explosion-proof ventilators for factories and hazardous material warehouses, as well as creating comfortable environments through ventilation in architectural spaces within the industrial sector. We are also dedicated to the research and development of rooftop ventilation systems and the manufacturing and sales of products tailored to environmental needs, such as Sanwa Hatches. In the future, alongside the research and development of ventilators, we aim to advance the research of hatches for industrial and residential use. Our entire team is committed to working together to contribute to people's lives and to continue our development.