HDPE Projects – Algae & Biodiesel since 2005
AnguillaTube – silver eel passage system logo

info@eelpassages.com  

 

Stainless steel biodiesel components
custom metal engineering
.
 

The same precision, now for eel passage

Past HDPE projects – proven engineering since 2005

Before developing AnguillaTube, we built large‑scale HDPE installations for professional algae cultivation and biodiesel production. Pipe diameters up to 1.20 m, years of industrial custom manufacturing.

Below is a selection of our earlier projects. The same precision, the same HDPE craftsmanship – now applied to safe silver eel passage.

 

Made in Holland sticker – Dutch HDPE engineering

Made in Holland – quality HDPE fabrication

1.2 meter transparent flatpack HDPE tube – algae cultivation system

1.2m HDPE flatpack tube – large diameter engineering

1.2m HDPE tube with U-bend and automatic sponge cleaning stations

1.2m U‑bend tube with automated cleaning system

1.2m HDPE U-bend tube with sponge cleaning docks – alternate view

1.2m tube system – U‑bend and sponge stations (angle 2)

HDPE connector for 1.2m tube – industrial fitting

1.2m HDPE tube connector

HDPE flatpack U-bend – folds like a harmonica for shipping

HDPE U‑bend – flatpack harmonica design

Flat HDPE sheets with zipper and 30cm flatpack tube – closed

30cm flatpack HDPE tube with zipper closure

Flatpack HDPE sheets with zipper – ready to fold for shipping

Flatpack HDPE sheets – zipper closure ready to fold

Flatpack HDPE sheets with zipper on manufacturing table

HDPE flatpack production – zipper sheets on table

Crown Prince Haakon of Norway visiting HDPE algae stand with delegation

Royal visit – Crown Prince Haakon at algae technology stand

HDPE tube construction on Biodiesel Magazine cover

Biodiesel Magazine cover – our HDPE tube technology

Large HDPE sponge docking units for automated tube cleaning

HDPE sponge docking stations – industrial tube cleaning

Engineers working in lab

Lab engineers – research and development

Working algae demo test system – HDPE tubes in operation

Algae demo system – live test operation

20cm HDPE tube system with sponge docking stations

20cm tube system – sponge docking for cleaning

Skid-mounted HDPE demo system for exhibitions – fully working

Mobile skid‑mounted HDPE demo system

Computer software for tube system operations – monitoring and control

Tube operations software – complete control system

HDPE demo system – U-bends with oxygen nipples for release and addition

Demo system – integrated oxygen nipples in U‑bends

Working demo – 25cm HDPE tube system in operation

25cm diameter HDPE demo system

Water storage buffer tanks for HDPE systems

Buffer tanks – water storage

2m high HDPE sponge docking tube for cleaning systems

Sponge docking tube – 2m height

U-bend fitting for 1.2m HDPE tubes

1.2m U‑bend – large diameter HDPE

Sponge moving through HDPE tube – cleaning in action

Sponge tube cleaning – live action

HDPE control unit – central management for tube system

HDPE control unit – system management

VDV tech Eel Passages is surprisingly affordable.
Contact us for a site‑specific quote. Rental options are also available.
 

VDV tech Eel Passages – the first downstream silver eel passage that actually works.

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