Modifying ISO Tanks

Electric Heating System

We are usually modifying ISO tanks for our customers. The most common way we modify them involves adding an external heating system. As standard most ISO Tank Containers come with heating coils welded to the tank. These coils are used to circulate an external supply of steam or hot water to heat the contents of the tank.

However, there are situations where steam is unavailable. If 440 volt, 3 phase electricity is available, Qualitank can fit an external heater that pumps heated glycol around the steam coils. Below is a 25,000 Litre ISO Tank we have fitted with a 12KW Glycol heater.

Level Sensor/Alarm

Our ISO Tank Containers are often used in a static location and connected up to equipment to stop/start pumps or other ancillary equipment. We can modify the tank and fit the relevant sensors to allow automatic control of external equipment. The tank above has had a simple overfill alarm fitted.

Handrails and Walkways

Increasingly, health and safety concerns mean our customers need a collapsible handrail fitted . The above ISO tank has a collapsible handrail in the raised position.

Bottom Loading and Discharge

Qualitank can fit piping and valves to each ISO Tank so that the operator does not need to leave the ground for loading or discharging. As a result, compressed air can be used to pressurise the Tanktainer and the contents pumped out through the modified pipework.

Larger Outlet

A customer needed a larger outlet. We changed the diameter from 3″ to 6″.

For any of these, or any other modifications you may require on your ISO Tank, email us at Or, please use the contact form and we will happily discuss your requirements.