Fish Pass Flapvalves

Fish Pass Flapvalves

Non return valves on outfalls often pose a barrier to fish migration, particularly at the point of entry from the sea. We offer a range of Fish Friendly Flap Valves to provide a window of opportunity for fish and eels to migrate naturally without compromising flood defence.

Fish-Friendly Design

Our range of Fish Pass FlapValves allows fish and eels to migrate naturally, without compromising flood defence.

Customisable Options

The Fish Pass FlapValves can be designed to suit any outfall and are available in either HDPE or stainless steel 316, catering to diverse requirements.

Eel Dampers

If only elver passage is required, we offer eel dampers that keep the flap valve ajar until on-seat water pressure compresses them and allows the valve to seal.

About Fish Pass Flapvalves

Our range of fish friendly flap valves can be designed to suit almost any outfall and can be manufactured in either HDPE or stainless steel 316.

If only elver passage is required we also have a range of eel dampers which keep flap valve ajar until on seat water pressure compresses them and allows the valve to seal.

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Why Choose Fish Pass Flapvalves

01

Promote Natural Migration

Fish Pass FlapValves provide a window of opportunity for fish and eels to migrate naturally, enhancing their survival rates.

02

Maintain Flood Defence

Our Fish Pass FlapValves are designed so they do not compromise flood defence, ensuring balance between conservation efforts and human safety.

03

Versatility

With the ability to design the Fish Pass FlapValves for almost any outfall, they offer a versatile solution for various aquatic environments.

04

Material Durability

Available in either HDPE or stainless steel 316, our Fish Pass FlapValves are durable and resistant to corrosion, ensuring long-lasting performance.

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Fish Pass Flapvalves Brochures & Data Sheets

Frequently Asked Questions

Fish friendly flap valves are essential to offer a window of opportunity for fish and eels to migrate naturally.

No. We do not offer a system to retro fit flap valves with a fish friendly system.

No, ACE Fish Friendly Flap valves offer the same benefits as the standard flap valve range, and integrate float regulated portals to allow a small opening for fish to use as the tide turns, which then close before a critical water level is reached.

Yes, we also offer a range of eel dampers than can be fitted to our flap valve range. The dampers allow a larger time window for eels to pass through before the flap valve completely closes.

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    More About Fish Pass Flapvalves

    At outfalls, non-return valves often emerge as barriers to fish migration, particularly at entry points from the sea. At our forefront is a range of innovative Fish-Friendly Flap Valves, strategically designed to offer a welcoming passage for fish and eels without compromising flood defence.

    Our Fish-Friendly Flap Valves stand as a beacon of environmental harmony, providing a crucial window of opportunity for natural fish and eel migration. These valves can be tailored to suit almost any outfall, offering a versatile solution for a variety of aquatic environments. Crafted with precision, they are available in high-density polyethylene (HDPE) and stainless steel 316, ensuring durability and adaptability to diverse conditions.

    For scenarios where elver passage is the primary concern, our range extends to include Eel Dampers. These ingenious dampers keep the flap valve ajar until on-seat water pressure compresses them, facilitating a seamless transition for elvers and allowing the valve to seal effectively. This targeted solution ensures that the migration needs of specific aquatic species are met, catering to the intricacies of different ecological contexts.

    Choose our Fish-Friendly Flap Valves for a solution that goes beyond conventional non-return valves, embracing a holistic approach that prioritises both flood defence and the natural migration patterns of aquatic life. Whether in HDPE or stainless steel, our valves are engineered to seamlessly integrate into your outfall system, promoting environmental sustainability and contributing to the well-being of aquatic ecosystems.