Flameskill have all the test facilities to enable us to carry out cylinder hydrotest, in-house. We inspect, test and maintain your fire cylinders, liferaft cylinders and BA cylinders to both British BS and American DOT standard.

Flameskill are UKAS ISO 17020:2012 accredited and a D.O.T. approved test facility for cylinder requalification (DOT certified for Amercian standard cylinders). In fact all kinds of pneumatic cylinders can be fully tested.

A cylinder hydrotest involves the cylinder being filled with water and placed inside a water filled high pressure chamber. Water pressure inside the cylinder is increased (166% of maximum working pressure) causing the cylinder to expand slightly. This in turn displaces a very small amount of water from within chamber, which is collected and measured. If the cylinder expansion is within regulation limits (< 5%), then the cylinder has passed and can be certified fit for purpose. Compliant cylinders are dried out, stamped as tested with the current month and year, refilled with the appropriate suppression agent and placed back in service. Failed cylinders must be destroyed

Hydrostatic cylinder testing, can also be know as cylinder hydrotest, cylinder stretch test and 10 year cylinder test.