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This document specifies the requirements for valves useable on transportable tanks with a minimum working pressure greater than 50 kPa for the transport of dangerous goods by road and rail for the following functions: Tanks for transport of liquid products: - Second closure of gravity discharge lines; - first closure on top of the tank (liquid, air, other connections); - aeration valve on top of the tank; - and other valves as defined in Annex F of EN 14564. Tanks for gases: - Second closure of bottom discharge lines; - second closure on top of the tank for poisonous gases: liquid phase and gas phase; - and other valves as defined in Annex F of EN 14564. This includes the following types of closures: - Valves (e. g. spindle operated valves, plug and ball valves, butterfly valves and gate valves); - dry disconnect couplings. NOTE 1 First closures of the gas phase at the foot of a tank for liquefied gas shall meet the requirements of foot valves according to EN 14433 NOTE 2 The standard is also applicable to liquefied gases including LPG, however, for a dedicated LPG standard see EN 13175 [3]