UNE-EN 14432:2024

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:

secondary closure of gravity discharge lines;

primary 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 14564:2019.

Tanks for gases:

secondary closure of bottom discharge lines;

secondary closure on top of the tank for poisonous gases: liquid phase and gas phase;

and other valves as defined in Annex F of EN 14564:2019.

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.

Primary closures of the gas phase at the foot of a tank for liquefied gas have to meet the requirements of foot valves according to EN 14433.

NOTE The standard is also applicable to liquefied gases including LPG, however, for a dedicated LPG standard see EN 13175 [3]