Tank-Eye closed systems


Tank-Eye creates a safer and healthier work environment for the ship’s crew, liquid cargo surveyors and terminal operators.


helps to lower emissions

Tank-Eye closed systems make inspections safer, lower-emitting and more accurate for the Petrochemical industry.

Do you want to be ahead of legislation and are you looking for lower emission solutions for inland barges?

Our world evolves into a greener, emission-free earth. The Green Deal and many legislations will also apply to the maritime industry, from seagoing vessels to inland barges.

Tank-eye provides an innovative vapor lock valve installation, a complete legislation proof and certified solution for all inland tanker barges. To help you prepare for what is coming; stricter rules and regulations.

Butterwash hatches

The solution

The current butterwash hatches on your inland barge are the basis for our solution. We will prepare the butterwash hatch with the Tank-Eye closed system valve and make your ship ready for:

• Closed sampling

• Closed dipping (OBQ/ROB/Free water)

• Closed temperatures

• Closed gas measuring

• Closed additivation

Learn how we can execute this within 24 hours. No wharf is needed (!), thus eliminating costs. You can start innovating immediately and be future-proof.

Download our roadmap to learn more about the easy steps to adapting your existing butterwash hatches.


Tank-Eye closed systems

Having a closed system has a couple of essential advantages for barges and the wellbeing of your ship crew. Find out what this can do for your company.

Safe | Environment-friendly

Working safely and securely is crucial in the maritime industry. Tank-Eye closed systems lowers emissions. No more harmful and dangerous substances nor emissions are exposed to human beings and the environment. The vapor lock valve is fully compliant and certified.

Fast installation

For the installation of Tank-Eye closed systems no wharf is needed. We install the vapor lock valves on the butterwash hatches within 1 day. Our fast service reduces waiting time for your inland barge.


As rules and regulations are getting stricter, open sampling is no longer allowed in the near future. Some terminals already reject open sampling. Being prepared with Tank-Eye closed systems brings many advantages and lowers your emission footprint.

Closed sampling

Tank-Eye closed systems allows you to take representative and multi-level samples.

Inspection | Easy fit

Various standardized gas-tight measuring equipment such as closed samplers, measuring tapes, thermometers, dipping instruments (OBQ/ROB), and gas meters will fit on the vapor lock valve. It also provides the option to inject additives.

Less waste

There is no flushing material compared to other closed sampling systems.


We operate in the ARA region. 

Why Tank-Eye

closed systems

Our mission is to create a healthier and safer work situation for ship crews, liquid cargo surveyors, and terminal operators. Next to that, we contribute to an emission-free world.


With our innovative system embedded in our product, open sampling, risky situations, exposure to harmful substances, and emissions to human beings and the environment belong to the past.


Closed and representative sampling eliminates contamination risks, which impacts the business positively and leading to better results.


If you want more information regarding our products and services, please do not hesitate to contact us.


Vrouwgelenweg 84

3341 BT Hendrik-Ido-Ambacht

The Netherlands


Office: +31 (0)10 322 51 50

Emergency number (24/7): +31 (0)10 322 51 12