Backdraft Damper 200 mm

Anti-Return Flap 200 mm. for indoor cultivation ventilation systems

In professional indoor ventilation systems, the Anti-Return Flap 200 mm. acts as a one-way valve: it allows the flow to pass in the correct direction when the extractor is working and closes automatically when the flow stops or tries to reverse.

The aluminum body provides lightness and strength, fitting into Ø200 mm networks with flexible or rigid ducts using metal clamps. This component helps maintain stable negative pressure, improves circuit tightness, reduces condensation during stops, and protects activated carbon filters.

In installations with multiple cannabis cultivation accessories (extractors, intractors, branches, and silencers), incorporating a flap prevents unwanted re-entries, leaks through undesired lines, and the entry of dust or insects through the duct.

The operation is completely automatic, with no power consumption, and it is enough to respect the mounting direction and perform periodic cleaning to ensure full closure.

In the Hydroponics Blanes catalog, a Grow Shop in Spain recognized as a trusted Grow Shop, you can find compatibilities, advice, and discreet shipping, along with options for cheap indoor grow tents to complete the installation.

Indoor Cultivation Anti-Return Flap 200 mm.

The Anti-Return Flap 200 mm. is essential in indoor cultivation of large rooms and tents, where the air volume requires precise control. By preventing return, the circuit remains tight, the filter works more effectively, and the climate control maintains temperature and humidity with fewer fluctuations between photoperiods.

What is the Anti-Return Flap 200 mm. for?

It is used to block air backflow and allow circulation in only one direction. It favors constant negative pressure, contributes to odor control, and makes it difficult for pests and dust to enter from outside through the ventilation duct.

Indoor cultivation accessory Anti-Return Flap 200 mm.

As an indoor cultivation accessory, it stands out for its easy installation, compatibility with standard sizes, and spring-operated closure that reacts instantly. It fits into main extraction lines, branches to facades or roofs, and systems with several fans connected to the same duct.

What is the Anti-Return Flap 200 mm. used for?

It is used in extraction and intake circuits with high flow: flowering rooms, drying areas, and technical rooms. It is useful when several lines share an outlet, preventing a fan from pushing air into another inactive branch or outside air from re-entering the extractor during stops.

How to use Anti-Return Flap 200 mm.

1) Check the network diameter: 200 mm.
2) Identify the flow direction arrow on the housing.
3) Insert the Anti-Return Flap 200 mm. between duct sections with the blades facing the exhaust.
4) Secure with metal clamps and seal joints with aluminum tape for maximum tightness.
5) Turn on the extractor and check opening; when stopped, check automatic closure by spring.
6) Perform preventive maintenance by removing dust from the mechanism to ensure complete closure.

Advantages of using Anti-Return Flap 200 mm.

One-way flow direction, better circuit tightness, optimized odor control with filter, reduced condensation during stops, pest prevention through the duct, and quick installation without electronics. Compact component that greatly improves environmental stability.

Where to buy an Anti-Return Flap 200 mm. online?

Available at Hydroponics Blanes, a trusted Grow Shop with discreet shipping and support for sizing ventilation, filters, extractors, and ducts. Wide catalog of cheap indoor grow tents and cannabis cultivation accessories in a Grow Shop in Spain with experience.

SEO keywords: Anti-Return Flap 200 mm., aluminum non-return valve, Ø200 duct, stable negative pressure, one-way ventilation, indoor odor control, duct tightness, cultivation ventilation accessories.

The Anti-Return Flap 200 mm. guarantees one-way circulation and protects the installation against re-entries, leaks, and external agents. Lightweight and resistant aluminum part with automatic springs, ideal for large rooms where air efficiency makes the difference.

At Hydroponics Blanes there is availability in standard sizes, expert advice, discreet shipping in 24/48 h and loyalty benefits: after each purchase you receive an email with a 5% discount code for the next order.