Flexigas 22mm Flexible Gas Pipe

Flexigas CSST uses 316L marine grade stainless steel for extra corrosion resistance. Available in lengths ranging from 15 metres up to 400 metres, long continuous runs can be achieved without the need for couplings or elbows. The flexible nature of the tubing allows it to be directed around obstacles with ease. Flexigas 22mm flexible gas pipe can be buried without the need for additional protection. Fully certified under the Kitemark scheme and manufactured to BS EN 15266.

Available Sizes Package Length (cm) Package Width (cm) Package Height(cm) Volume/Package KG/Package
15m in box 52.5 52.5 14 0.04 4.915
25m in box 60 60 14.5 0.05 7.985
50m on spool 59 59 43 0.15 15.34
75m on spool 59 59 43 0.15 24.6
400m on spool* 110 110 43 0.52 120

*by special order

Size guidance

22mm Flexigas CSST gas pipe: quick answers

Flexigas 22mm is a standard CSST gas pipe size for fixed UK gas pipework. It is commonly searched as 22mm flexible gas pipe, but final suitability depends on sizing calculations and the installation route.

SystemFlexigas standard CSST gas pipe
Size22mm / DN22
MaterialCurrent production 316L stainless steel
CertificationBSI Kitemark KM 598726 to BS EN 15266:2007
PressureMOP 0.5 bar
Installer contextGas Safe / ACS competence applies

DN22 sits within the BS 6891 domestic pipework sizing range noted for Flexigas DN15-DN32.

Can 22mm Flexigas be selected by pipe size alone?

No. Pipe size is only one part of the design. The route, equivalent length, connected load, gas family and allowable pressure drop all matter.

Where should I go next for 22mm sizing?

Use the Flexigas gas pipe sizing calculator and installation manual, then speak to the technical team if the route is unusual or close to a limit.

Use Flexigas tubing and fittings as a system. Do not mix Flexigas CSST or fittings with other manufacturers' CSST systems.