Check valves

Winflex - Flat Check Valve 60Mmx204Mm

€5.25
Winflex - Flat Check Valve 60Mmx120Mm

€2.70
Winflex - Flat Check Valve 55Mmx110Mm

€2.45
Winflex - Check valve - Kom - 160mm - Ventilation duct

€14.50
Winflex - Round duct connection with square flange check valve - Ø100mm

€5.50
Winflex - Round duct connection with square flange check valve - Ø125mm

€7
Winflex - Square flange Ø150mm anti-backflow, conduit, ventilation duct

€8
Winflex - Round duct connection with square flange check valve - Ø200mm

€9.20
Winflex - Steel check valve 100mm, ventilation duct

€11.50
Non-return valve 150mm, ventilation duct

€6
Check valve 125mm, ventilation duct

€12.90
Non-return valve 100mm, ventilation duct

€4.50
Non-return valve 125mm, ventilation duct

€5.50
Check valve 254mm metal, ventilation duct

€19.90
Check valve 200mm, galvanized steel, ventilation duct

€17.50
Check valve 315mm metal, ventilation duct

€23.90
Winflex - Check valve - 150mm - Ventilation duct

€13.50

Check valves: Control the air flow in your ventilation system

Discover our range of check valves, essential components for the efficient management of your ventilation system, available in robust PVC or durable aluminum. Designed for easy connection to your ventilation ducts or air extractors, our check valves are available in diameters ranging from 100 mm to 315 mm, adapting to a variety of configurations.

Non-return valves are particularly essential when setting up a CO2-enriched cultivation area, as they prevent CO2 from escaping when the extraction system is switched off. They are also very useful for isolating a grow room from its external climatic environment, helping to maintain stable, optimal conditions for your plants. To complement our check valves, you'll also find our selection of ventilation grilles to complete your ventilation system.

Take advantage of the best prices on quality check valves at Culture Indoor your partner for indoor cultivation.

Understand the importance of airflow control in your ventilation system:

All about air: This article will provide you with in-depth knowledge of the dynamics of air in your grow space and the importance of controlling its flow using components such as check valves.
What is ventilation? discoverthe fundamentals of ventilation and the crucial role of check valves in maintaining an efficient and controlled system, especially in specific environments such as CO2-enriched cultures.

Ensure pre cis of airflow in your ventilation system with our selection of PVC and aluminum check valves at Culture Indoor .

FAQ Check valves

What is the purpose of a check valve in a ventilation system?

A check valve ensures that the air flow circulates in one direction only, preventing air from flowing backwards when the extractor is switched off. This is essential to maintain ventilation efficiency and containment of specific atmospheres such as CO2-enriched spaces.

How do I choose the right check valve size for my installation?

The check valve size must match the diameter of your ventilation ducts and air extractors. We offer diameters ranging from 100 mm to 315 mm to suit most configurations.

What's the difference between PVC and aluminum check valves?

PVC check valves are generally lighter and more economical, while aluminum ones offer greater heat resistance and durability. The choice will depend on your specific needs and the environment of your installation.