Non-return valve for ventilation - Reliability and efficiency assured
- Avoids infiltration of outside air
- Improves indoor air quality
- Reduces noise pollution
- Maintains constant temperature
- Extends the life of equipment

Made of sturdy materials, the check valve is built to last. Its solid construction ensures exceptional resistance to harsh conditions, such as humidity and heat, common in growing environments. Thanks to its durability, this damper offers reliable protection against air returns, thus extending the life of your ventilation system.
Universal Compatibility
The check valve is available in several diameters to adapt to a wide variety of ventilation ducts:
- 125mm
- 150mm
- 200mm
- 250mm
- 315mm
This diversity of sizes allows for easy and efficient integration into your existing system, ensuring a perfect fit and optimal performance.
Ease of Installation
Installing the check valve is quick and easy. Designed to fit perfectly into existing ducts, it requires no specialist tools. Simply fix it in place to immediately benefit from its benefits. This ease of installation saves time and minimizes interruptions to your growing space.
Product Benefits
- Backdraft Protection : Effectively prevents unwanted airflow, maintaining stable airflow.
- Robust construction : Made of high quality materials for a long service life.
- Compatibility : Available in several diameters to adapt to all ventilation systems.
- Easy installation : Practical design for quick installation without specialist tools.
- Energy Efficiency : Improves the overall efficiency of your ventilation system by maintaining a constant air flow.
"Since I installed the check valve, I have noticed a significant improvement in the stability of my airflow. No more unwanted air returns, and my ventilation system works much more efficiently." - Opinion from an expert grower
Questions answers
Q: Is the check valve compatible with all types of ventilation ducts? A: Yes, the check valve is compatible with most standard ventilation ducts, thanks to its different sizes available.
Q: How do I know which size check valve to choose for my installation? A: The size of the check valve depends on the diameter of your ventilation ducts. Measure the diameters of your ducts and choose the corresponding size (125mm, 150mm, 200mm, 250mm, or 315mm).
Q: Can the check valve withstand heavy growing conditions? A: Absolutely. Thanks to its construction of robust materials, the check valve is designed to withstand the most demanding growing environments.
Q: Is it difficult to install the check valve? A: No, installation is quick and easy. Simply attach the damper to the ducts without the need for specialized tools.
Q: Does the check valve actually improve air circulation? A: Yes, the check valve prevents backflow, thus maintaining a constant air flow and improving the efficiency of your ventilation system.
Opt for the non-return valve and transform your ventilation system for a more productive and efficient culture.