Fish and Eel Passages

HCW self-regulating Eel and Elver pass systems with brushes suited for mounting on to adjustable weirs.

The HCW tidal flap with incorporated fish friendly flap(s). They slowly closes as the tide rises and pulls the flap shut using the float. This ensures a greater period of time where the flap is open and submerged giving fish and eels more time to pass through.
HCW Larinier fish Passes made from HDPE are for improving fish migration suited for mounting on to fixed structures..
Do you want to know more or do you have any questions please do not hesitate contact. We are happy to assist you.
Elver pass 1


Fish Frindly Flap Valve


Fish Passages Completely HDPE (1)


Elver passage 2


Fish Frindly flap valve 2000x2000 3xØ315


Fish Passages Completely HDPE (2)


Elver Passages 14 mtr


Fish Frindly flap valve 800x800 2xØ315


Fish Passages Completely Stainless Steel


Elver-Pass_Eel-Pass (2)


Fish Passages Coated Steel (1)


Inline-penstock_Fish friendly flap-valve Ø315mm


Elver-Pass_Eel-Pass


Fish Passages Coated Steel (2)


Larinier Fish Pass


Fish Frindly Flap Valve (2)


Fish Passages Coated Steel (3)


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