Tank Trim and ESVs
New or used, LPG storage tanks must be fitted with “Trim”. These are valves and fittings, safety relief valves, excess flow valves, liquid withdrawal ports, tank level indicators and transmitters, pressure gauges, thermometers, etc. to meet the safety requirements of NFPA, and the information and convenience requirements of the operators. Emergency Shutoff Valves (ESVs) are installed between truck unload stations and the storage tanks, and in the liquid withdrawal line(s) of the tank(s). They are activated by pull-cables, or through a Nitrogen-operated pneumatic system.
The actual configuration of tank trim and ESVs depends on the particular requirements of the installation. Contact AES for more information.