Standard tank container fitted with baffles

T11 & T14 tank containers: Safe transport for chemicals, food, and classified products

Standard tank containers with baffles provide safe, compliant liquid transport – especially suitable for chemicals, food-grade products, and classified substances. Manufacturers design these containers to meet the T11 specification for non-classified products. However, transporting more demanding classified products, such as acids, requires the higher T14 specification. Upgrading standard tank containers with baffles to the T14 specification ensures you meet safety regulations, while improving your ability to handle hazardous materials.

Tank containers built to international standards

Our standard tank containers with baffles meet a range of international standards. These include ISO, CSC, TIR, UIC, and UN portable tank rules. We also adhere to US-DOT, IMDG, and ADR 6.7 regulations, for example. Many standard tank containers with baffles hold dual certifications, such as ADR Tank 6.8. This flexibility allows these containers to adapt to various transport methods and product types and meet the diverse needs of global logistics.

Baffled tanks for classified products

If weight regulations are preventing you from achieving the minimum loading degree of 80%, you can add baffles to standard tank containers. For example, a 15,000-litre standard tank container typically includes one baffle. A 22,500-litre uses two, and a 26,000-litre typically has three. Adding these baffles improves safety during transport and ensures compliance with IMDG or ADR regulations. Additionally, it helps operators manage weight and cleaning hatch requirements more effectively.

Regulations for safe transport

To ensure safe transport, operators must fill standard tank containers with baffles to at least 80% of their capacity. If the tank does not have sections smaller than 7,500 litres, the fill must be reduced to no more than 20%. This practice helps maintain stability during liquid transport. For more details, refer to the IMDG or ADR regulations (sections 4.3.2.2 / 4.3.2.4). You can also contact our expert team for assistance with standard tank containers with baffles.

Capacity: 15,000, 22,500 or 26,000 litres
Tare: from 2,900 kg till 4,200 kg
Max. gross weight: 
From 36,000 kg to 39,000 kg
Shell material: 
Stainless steel 316L / DIN 1.4402
Frame dimensions:  
Length: 20 ft. 6.058 m
Height: 8’6” 2.591 m
Width: 8’ 2.438 m
Design temperature: -40°C to 130°C
Maximum operating pressure:
4.0 bar
Test pressure:
6.0 bar
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Details of standard tank containers fitted with baffles

A manufacturer fits a 20”/DN500 manlid with 8 swing bolts. They also fit the manlid with a standard braided PTFE gasket, but they can change it to other gasket materials if you prefer.
To achieve thorough cleaning at automated cleaning facilities, manufacturers add 3 or 4 extra cleaning openings: a 12”/DN300 manlid, fitted with 4 swing bolts. The manufacturers fit the cleaning hatch with a standard braided PTFE gasket, but they can change it to other gasket materials if you prefer.
Manufacturers fit the interior of the vessel with vertical corrugated stainless steel baffles (316L). These baffles cover 70% of the internal diameter, and their vertical shape makes it easy to access and walk inside the tank.

The manufacturer fits the T11 UN Portable tank with a 3-closure bottom discharge, supplied by a leading global manufacturer. The discharge valve includes: a high-lift internal valve that can be closed remotely using a cable on the side of the tank container, a butterfly valve as the second closure, and a 3” BSP spigot as the third closure.

We can modify the connections to a cleanflow version or change the BSP connection to a quick-release coupling at your request. Our team is here to help.

Most tank containers are built for future installation of a bottom cabinet (floor and door) – for a clean operation and easier installation of TIR seals.

A standard tank features with a DN80/3” connection on top. A connection can be added for easy filling and discharge from the top at your request, and our team can assist with installing a bottom-operated top discharge as an option.

To release air during loading and discharge, the manufacturer fits a ball valve on the top. The standard size is 1.5”/DN40 with a BSP connection. This connection can be changed to a flanged version, a 2” valve, or a bottom-operated version on request.

For full bottom operation, manufacturers can extend the airline to the bottom using a ground-operated vapour return (GOVR), including a bottom-operated airline valve and a manometer with a second valve (contact us to discuss dimensions and connections).

The manufacturer fits a T11 tank container with a safety valve that opens at 4.4 bar (10% above the test pressure). In addition to the pressure-only version, you can choose the pressure + vacuum version as an option. Each tank container is also ready for the future if you want to install a bursting disc (needed for both T12 and T14 specifications).
The frame is made of mild steel and meets the ISO dimensions of a 20 ft box container. The barrel connects to the frame and is part of the integral construction, so top rails are not necessarily needed, but can be added on request.
Each tank container is fitted with a stick-on analogue thermometer, with a range from -20°C to 160°C. You can add a digital version or thermometers with a probe on request for more accurate product temperature readings.
Each tank container is fitted with an anti-slip ladder on the rear side for easy access to the top of the container.
Each container is fitted with an aluminium walkway to access the manlid, safety relief valve, and airline. The standard layout includes one longitudinal walkway and transverse sections between the spill boxes. You can add additional walkways as well as spill box covers on request for a cleaner operation and easier installation of TIR seals.
One or two collapsible handrails can be fitted, either top or bottom-operated, on request.
Each tank container is fitted with a minimum of 8 steam runs to heat the product with warm water or steam. The area covered is 8 m2. You can upgrade the number of steam runs to 12 on request. You can also add a water-glycol/electrically heated system.

A small part of the fleet is non-insulated, while the majority contains 50 mm insulation and cladding. The insulation material varies and can be made out of polyurethane (PU), rockwool, glass wool, or a combination of these. The cladding material is either aluminium, glass-reinforced plastic (GRP), or stainless steel.

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