Copenhagen Atomics Salt Tanks

Salt tanks with a 1,000-liter capacity, built-in heaters, and a gas system

Efficient, high-temperature molten salt transport tanks with precise heat control, corrosion resistance, and seamless integration for industrial applications.
The Salt Tanks offer an ideal solution for the efficient storage and temperature regulation of molten salts. Engineered for durability, these tanks are constructed using 316 stainless steel to provide superior resistance to corrosion and high temperatures (up to 650℃).
Integrated sleeved heating elements ensure even heat distribution to prevent crystallization, while the dip tube design enables smooth salt transfer with minimal pressure.

Salt Tank

Highlights

1,000-Liter Capacity

Large-volume storage and transport

Precise Heat Control

Integrated heaters maintain even temperatures

Corrosion Resistant

Constructed with 316 stainless steel for durability

Optimized Transfer

Dip tube design enables efficient salt transfer with minimal pressure

Seamless Integration

Easy control via cloud interface and mobile webUI

Built-In Gas System

Maintains a controlled atmosphere for safe operation

The Salt Tank Overview

Introduction

Efficient, high-temperature molten salt transport tanks with precise heat control, corrosion resistance, and seamless integration for industrial applications.

The salt storage / transport tank with integrated heating elements is the ideal solution for efficient storage and temperature regulation of molten salts. Built with durability in mind, this tank is made using 316 stainless steel, offering superior resistance to corrosion and high temperatures up to 650℃.

The sleeved heating elements ensure that your molten salt is maintained at even temperatures, preventing crystallisation and ensuring continuous, reliable loading and unloading of salt into any sister system. Perfect for industries and research institutes working with thermal energy storage and or nuclear grade molten salts.

With a robust design, the tank is capable of holding large volumes of molten salt up to 1m3, while providing a consistent, even heat distribution throughout. The easy-to-use control system allow for precise temperature and pressure adjustments through our cloud interface and mobile phone webUI.

These tanks have a dip tube almost to the bottom of the tank, which allows the control system to transfer salt out of the tank simply by applying some mBar of pressure.

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Download: Salt Tanks Datasheet

A more technical and in-depth document

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FAQ

Version 5.6 is 120x80x215 cm (47x31x85 inches), it cannot stand up against a wall or other equipment when it is operating. You need a minimum 20 cm space around the loop in order for the heat to dissipate. If you place it only 20 cm from a wall, then you must check that the wall material can handle the heat. See the datasheet for more information. Depending on your lab configuration you may also need space for a cold trap to remove moisture from the loop, a water chiller to keep the electronics cabinet cold and an argon pressure bottle if argon is not available from your lab piping. You may also need a transformer to convert your voltage to European voltages. See other questions below about voltages.
The loop can be rolled on a pallet pusher through most doors and into elevators.

By default the loop uses a 32 Amp, 350 - 420 Volt, 3 phase European CEE connector. It can run on 45 - 65 Hz. American customers typically buy a transformer, which is readily available to step down American 480 Volt industrial supply.

The loops we sell in Europe come with CE marking. You can ask for our certification of conformity. For the US market, these are optionally fitted with UL approved cabling and electronics.

Several of our customers use the loops as pumping stations, where they pump salt through some external equipment. Because molten salt compatible pumps are not readily available many of our customers simply use our loops as a pumping station. By using internal pneumatic adjustable salt valves, it is possible to adjust how much flow one wish to pump around in the internal loop inside the loop furnace or adjust a certain flow to go out through an external pipe assembly e,g, with reheaters, heat exchangers, measure equipment and more.

Yes you can connect two loops, each on a separate scale and in this way make very accurate flow measurements through the pipe connections

The loop can deliver a maximum pressure around 2 bar. Depending on the type of salt it can reach 5 meters maximum pumping height. FLiNaK salt has a density around 2.2 depending on the temperature. Uranium and thorium salts have densities above 4 kg/liter. Most of the salts we use have a high change in density and viscosity with change in temperature.

Copenhagen Atomics molten salt test loops come with control software which can be controlled from a webbrowser and the data recorded are also available in real time web data plots. You can control it from your computer or mobile phone as long as it is connected to the same LAN (WiFi) as the loop. Simple new commands can be set up within a few hours. The control software can also interface with other equipment. But this typically requires help from our integration engineers.

There are a number of ways to interface. The simplest is to get data out of the loop by using SignalR (a https protocol for near real type data reception). It is also possible to interface with Ethernet or RS485 or USB or 0-5V or 4-20mA typical industrial interfaces.