- The Pipe Cover Flap Butterfly Valve is designed specifically for use with exhaust hoses, making it ideal for kitchens, bathrooms, garages, air conditioners, fans, extractor hoods, and ventilation systems. - This innovative flap valve automatically opens and closes, ensuring one-directional airflow. It effectively prevents cold air from entering your space, maintaining a comfortable environment. - Equipped with an inner rubber seal, this valve enhances tightness while minimizing noise, making it perfect for residential and commercial applications. - The damper blades are engineered to open only in the direction of the outflowing air when installed correctly. For optimal performance, position the shaft axis vertically and insert the flap fully into the pipe in a horizontal setup. - Constructed from durable PVC, the casing and valve blades are resistant to high temperatures exceeding 150 degrees Celsius, ensuring long-lasting functionality. The shaft and spring are also made from PVC, providing a flame-retardant solution. - Applications include: 1. Kitchen exhaust systems where odor control and airflow direction are crucial. 2. Bathroom ventilation to prevent cold drafts while allowing moisture to escape. 3. Garage exhaust setups that require efficient airflow management. This Pipe Cover Flap Butterfly Valve is a practical solution for effective airflow control in various settings, ensuring comfort and efficiency in your ventilation needs.