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Bulk deliveries of oxygen, nitrogen, argon, hydrogen* and carbon dioxide are supplied as liquid because it requires much less storage capacity than gas.
The liquid is delivered by our dedicated fleet of cryogenic tankers into vacuum insulated bulk storage vessels that we usually own and maintain on customer premises. The stored liquid is controlled at the required pressure by means of an automated regulation system.
If the customer process requires gas, the liquid is vaporised and delivered as a gas along the supply pipe. If the process requires liquid, it is delivered directly from the storage vessel through a cryogenic vacuum insulated pipeline.
The size and type of storage vessel and vaporisation is selected to suit customers’ individual requirements.
*Bulk hydrogen would normally be supplied in high pressure gas tube trailers. Deliveries are made either by direct pressure transfer to permanent storage cylinders or with an on-site trailer used as storage.
Storage vessels and high pressure gas tube trailers can be fitted with telemetry systems to provide real time remote monitoring of stock levels ensuring product is always available.