Maximize efficiency with baffles in tank containers

Baffle installation in tank containers

When the minimum loading capacity of 80% can’t be met, installing baffles can be an effective solution. This is typically done in tanks with capacities of 30,000 litres (requiring 3 baffles) and 35,000 litres (requiring 4 baffles). However, adding baffles increases not only the weight but also costs. Additionally, companies should include cleaning hatches and spill boxes to ensure proper maintenance and safety.

Regulatory compliance for baffled tank containers

IMDG and ADR guidelines state that tanks with capacities exceeding 7,500 litres must be filled to either at least 80% or less than 20% of their total volume. This regulation ensures safety by preventing accidents during transport.

Safety standards for baffled tank containers

To comply with ADR and European transport regulations, baffled tanks must include essential safety features, such as handrails, ground-operated vapour return systems, hazard placard boards, and bottom valves. Moreover, most tanks are designed to meet ISO and UN portable tank standards, and many are dual-certified for that extra level of safety assurance ‒ particularly useful when carrying hazardous materials.

Benefits of baffled tank containers

Baffles reduce liquid movement, improving stability and safety during transport. They minimize spill risks, ensure safe handling of hazardous materials, and guarantee compliance with international regulations.

Buy a Container
Capacity: 
From 30,000 to 35,000 Litres
Tare: 
From 3,700 to 4,600 kg
Max. gross weight: 
From 36,000 kg to max 39,000 kg
Shell material: 
Stainless steel 316L / DIN 1.4402
Frame dimensions:  
Length: 
23 ft or 25 ft
7.15 m/ 7.45 m/ 7.82 m
Height: 8’9”
2.70 m
Width: 
8’4”
2.55 m
Design temperature: 
-40°C to 130°C
Maximum operating pressure:4.0 bar 
Test pressure:6.0 bar 
External pressure:0.41 bar 
Steam test pressure:4.0 bar 
Safety relief valve setting:4.4 bar 

Details of baffled swap body tank containers

A 20”/DN500 manlid is fitted with 8 swing bolts. The manlid is fitted with a standard braided PTFE gasket. This can be changed to other gasket material as an option.

To ensure thorough cleaning at automated cleaning facilities, 3 or 4 extra cleaning openings can be added: 12”/DN300 manlid, fitted with 4 swing bolts. The cleaning hatch is fitted with a standard braided PTFE manlid gasket. This can be changed to other gasket material as an option.
The interior of the vessel is fitted 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 T11 UN Portable Tank is fitted 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 by a cable on the side of the tank container, a butterfly valve as a 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 fitting of a bottom cabinet (floor and door) – for a clean operation and easier installation of TIR seals.
A standard tank features a DN80/3” connection on top. An additional connection can be added on request for easy filling and/or discharge from the top. A bottom-operated top discharge is one of the options where our team can assist.
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).
A T11 tank container is fitted with a safety valve that opens at 4.4 bar (10% above the test pressure). In addition to the pressure-only version, a pressure + vacuum version is also available 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 meet 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. The front and the rear of the tank vessel are protected by additional frame parts, such as bull bars.
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 a full-deck aluminium walkway to access the manlid, cleaning hatches, safety relief valve, and airline. Spill box covers can be added on request for clean operation and easier installation of TIR seals.

Upon request, one or two collapsible handrails can be fitted, both top-operated and bottom-operated.

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. A water-glycol/electrically heated system can be added as well.
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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