Choosing a liquid oxygen tank
Size an oxygen tank by the mass of oxygen you need between deliveries, not only by its volume. One litre of liquid oxygen becomes about 860 litres of gas, so a compact cryogenic tank replaces many high-pressure cylinders and cuts handling and changeovers.
The working pressure class sets how much liquid a tank can hold and the pressure available at your outlet. A pressure-building circuit keeps the tank at pressure, and an ambient vaporiser turns liquid into gas at the flow rate your process needs.
Pressure equipment used in South Africa falls under the Pressure Equipment Regulations. The design code and conformity route are confirmed with the manufacturer before you order. Read more in our guide to buying pressure equipment for use in South Africa.