Gas Tank Containers
The majority of the GAS tank container fleet is built as UN portable tank (T50) and the vessel is built under the pressure vessel code ASME XIII div 1 or 2. This is a tank container that can be used for the storage and transport of Liquified Gases.
Each gas tank container is certified with a product list, this list shows the products that maybe loaded and is depending on the working pressure of the tank container and the critical pressure of the product in liquid phase.
The majority of the Gas tank containers are built in 4 groups of working pressures: 15.1 bar, 22 bar, 27,5 and 34.5 bar. Gas tank containers are in most cases built for more than 1 product and are therefore fitted with baffles.
These 4 “standard” pressure groups are built with bottom discharge/filling. Some products require top discharge. The 27.5 and 3.4.5 bar tanks are often used for refrigerants and are often built with a zinc coating.
In the event you need advice on a possible solution for the liquified gas to be stored and transported please feel free to contact our friendly staff to learn the best possible solution that Tankcon can offer.
| Capacity: | 20.000 to 25.300 Liters | |
| Tare: | depending on capacity and pressure, up to 10.000 kg. | |
| Max. Gross weight: | 36.000 kg | |
| Shell material: | SA 612 or P460NL | |
| Frame Dimensions: | ||
| Length: | 20 ft. | 6.058 M |
| Height: | 8’6” | 2.591 M |
| Width: | 8’ | 2.438 M |
| Design Temperature: | -40 degrees °C to 55 degrees °C | |
| Maximum working pressure: | 4.0 Bar | |
| Test pressure: | 6.0 Bar | |
| External pressure: | 1.00 bar (full vacuum) | |
Details of Gas Tank Containers
The lower pressure tanks (up to 22 bar) are mostly built in carbon steel SA 612 and the vessel is certified as pressure vessel are certified under ASME DIV 1 or Div 2.
The higher pressure tank containers (27.5 and 34.5 bar) are mostly used for liquified refrigerants. To avoid contamination these high pressure tanks are often built with a sacrificial zinc coating to avoid rust in the tank container. Amongst the products that are loaded in these tank containers are Ozon unfriendly gases, to leakage as much as possible are these mostly build without spare flanges for future fitment of level gauges.
a 20”/DN500 bolted manlid is often fitted at the rear of the tank.
The internal of the vessel is fitted with horizontal corrugated (stainless steel) baffles.
The Unportable tank T50 is fitted with a 3 closure bottom discharge supplied by a worldwide leading manufacturer. The discharge valve includes: an access flow valve (internal valve) that can be closed remotely by a cable on the side of the tank container, a DN 50 ball valve as 2nd closure and an ACME coupling or blind flange as third closure.
Most gas tank containers are built with the connections on the rear side of the tank container. For dedicated rail service tank containers are built as side discharge units. A cabinet to protect the valve sets is often fitted.
The vapor valve includes: an access flow valve (internal valve) that can be closed remotely by a cable on the side of the tank container, a DN 50 ball valve as 2nd closure and an ACME couplings or blind flange as third closure.
A T50 tank container is fitted with a safety valve dedicated built for gas tanks often fitted with a bursting disc.
The frame is made of mild steel and meet the ISO dimensions of a 20ft. box container. The barrel is connected with the frame and is a part of the integral construction, therefore are top rails not needed but can be added on request.
Each gas tank container is fitted with a probe analogue thermometer, reading from -20 to max 160 degrees °C.
Each gas tank container is fitted with a gauge showing the internal pressure.
The majority of the gas tank fleet is built without insulation and fitted with a marine grade aluminium sunshield.
To avoid moisture in the tank the gas tanks are generally filled with Nitrogen with a low oxygen content (<0.5%) and a dew point of min -20 degrees C. Lower dew points can be arranged on request.
Low pressure tanks are often fitted with a provision for future fitment of a levelgauge.