Tank-Eye closed systems

Safe, healthy, cost-efficient

and sustainable

Tank-Eye revolutionizes the game for the maritime and (petro)chemical industry. Our vapour lock valves are specially designed to enable accurate and safe closed quantity and quality inspections. It facilitates closed measurements like gas levels, ullage, temperature, free water and closed sampling like first foot, running, spot (any desired level) and absolute bottom. From inland barges to shore tanks, including challenging pressurized (inert gas) spaces, we modernize safety and efficiency.

Inland bargesShore tanks

Some of our clients

All our clients

Why Tank-Eye closed systems?

Increase precision

and save costs

The Tank-Eye Vapour Lock Valve is a certified and future-proof solution for all inland barges and shore tanks. Our solution enables and enhances closed measurements and sampling, ensuring

significantly improved and accurate results. The Vapour Lock Valve plays a vital role in increasing precision. More accuracy saves time and costs by eliminating quantity losses and contamination risks.

  Our products 

New!

Closed inspection equipment backpack

Discover the specially designed closed inspection equipment backpack, crafted to revolutionize surveying operations on inland barges and shore tanks.


In collaboration with local surveyors, we've engineered this backpack with utmost precision to enhance safety and ergonomics for professionals in the field.

Learn more

Future-ready innovation

A sustainable and

safe solution

Our solution eliminates the emission of harmful and dangerous substances, which benefits the environment and fully complies with the stricter rules and regulations (ADN 2025). In addition, it creates a safer and healthier work environment for the ship’s crew, liquid cargo surveyors, terminal operators and tank inspectors.

  Benefits    Return on investment  

Inland barges | Quick installation

Discover how to get your inland barge ready for closed inspections

in a day or less. We offer two installation methods.

Tank head installation

The possibilities after installation on a tank head

  • The Tank-Eye Vapour Lock can be installed as new closed reference point by TankTech or Kalibra.
  • Closed measuring of ullage, temperature and free water.
  • Closed dipping on emptiness (OBQ / ROB).
  • Closed multi-level sampling like first foot, running, spot (any desired level) and absolute bottom.
  • Closed gas measurement like Oxygen, Nitrogen, LEL, UEL etc.

How installation works

  • Barge must be gas free (cleaning not necessary) established by
    Gas doctor (due to welding).
  • During new build, before class certification, or any other maintenance.
  • Installation within 1 day.

Butterwash hatch installation

The possibilities after installation on a butterwash hatch

  • Closed measuring product temperature.
  • Closed multi-level sampling like first foot, running, spot (any desired level) and absolute bottom.
  • Closed gas measurement like Oxygen, Nitrogen, LEL, UEL etc.

How installation works

  • Between voyages or any other moment when your barge is empty, established gas free by shipper.
  • Installation takes <8 hrs.
  • Installation at any jetty.
  • Before class certification, we can change the butterwash installation into a tank head installation.

Shore tanks |

Quick installation

Discover more about the possibilities for closed and

gas-tight inspections atop shore tanks.

Shore tank installation

What are the possibilities?

  • Closed multi-level sampling; absolute bottom, first foot, running and spot (e.g. upper, middle, lower).
  • Closed gas measurements; Oxygen, Nitrogen, LEL etc.
  • Closed water dipping before draining.
  • Closed dipping on emptiness (OBQ / ROB).
  • Closed measuring product temperature.

How installation works

  • The installation is usually custom-made including the Tank-Eye Vapour Lock Valves and can be easily installed directly atop the shore tank(s).

Our mission

Tank Eye’s mission is to enhance safety and contribute to an emission-free world. We're dedicated to creating a healthier working environment. Our innovative closed system is not just about compliance; it provides better results and efficiency and drives positive change for a sustainable future.

Benefits overview

  Discover more  

Fast delivery and installation.

Future-ready.

Accurate results.

Representative and

multi-level samples.

Easy fit for various standardized

gas-tight measuring / sampling equipment and gas meters.

No more unpleasant stench

during shore tanks sampling.

Fully compliant and certified.

Safe and human- / environment-friendly.

Saves time and costs.

Eliminates the need for

unnecessary nitrogen purging.

Incentive Provider Green Award Barges.

Return on investment

Tank Eye closed systems per inland barge

 Read more 

Closed sampling via

deepwell pump

Diesel costs
€ 5.850,- per year

Calculation generator for deepwell pump

1 trip (load and discharge) = ± 100 L diesel

Average per year 90 trips = 9.000 L diesel

9 m3 diesel x € 650,- = € 5850,- per year

CO₂ emission
29.304 kg CO₂ per year

Calculation

9000 L diesel x 3,256 = 29.304 kg CO₂

Closed sampling via

Vapour Lock Valve

Diesel costs
€ 0,- per year

No diesel required

CO₂ emmision
0 kg CO₂ per year

No CO₂ emission

Contact

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

Address

Noordeinde 95

3341 LW Hendrik-Ido-Ambacht

The Netherlands

Email

Phone