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Cylinder Accessories & Keys

Reference

UK medical cylinder data

Nominal contents in litres by cylinder size, for the gases Oxylitre equipment is supplied to work with. Sizes and valve types follow BS 341-3 and ISO 407.

Nominal contents (litres)

Nominal cylinder contents in litres by gas and cylinder size
GasCDDEFHXGJ
Oxygen4603406801360230034006800
Nitrous Oxide—not available in this size90018003600—not available in this size900018000
Entonox®440500—not available in this size200022005000—not available in this size
Medical Air—not available in this size—not available in this size6401280—not available in this size32006400
Carbon Dioxide—not available in this size—not available in this size1800—not available in this size—not available in this size—not available in this size—not available in this size
Helium—not available in this size300—not available in this size1200—not available in this size—not available in this size—not available in this size

Scroll the table sideways to see every cylinder size.

Relative cylinder sizes

The seven cylinder sizes drawn side by side, from the smallest, CD, to the largest, JCDDEFHXGJ

Indicative proportions only. No dimension is stated or implied.

Valve connections

Pin-IndexISO 407 yoke, CD to E sizes
Bullnose5/8″ BSP, F and G sizes
Handwheel11/16 x 20, N₂O and Entonox®
IntegralValve, regulator and gauge in one

Oxylitre does not supply cylinders. Contents, valve types, sizes and the indicative shoulder colours shown above are given for equipment selection only. Confirm the cylinder specification with your gas supplier.