Zawór rozprężny fd20e0007-021 parker or.72+77 De Dietrich 300007570

This Parker expansion valve FD20E0007-021 features orifice sizes of 0.72 and 0.77, designed for high-capacity refrigerant flow. It is an essential component for heating systems that require precise expansion control, such as in large boilers or burners with heat recovery. Its robust build ensures long service life and consistent performance under demanding conditions.