Pressure equipment, gas appliances and boilers
Communiqué on TS 9809/T1 Valves – Cast Iron Ball Valves For Combustible Gases
This standard covers ball valves for combustible gases for distribution (except for use on pipeline transportation) which are used for natural gas and liquified petroleum gas "LPG" and which have nominal diameter (DN) from 65 mm up to 300 mm (included).
This standard does not cover steel and copper alloy ball valves.
Type of fittings to be used according to working pressure classes and working conditions such as temperature, thermal fluctuations and the like does not include the materials produced and dimensions.