The All-Flo® A050-SPK-TTKVZ140, a 0.5" A Series bolted AODD pump built from PVDF and ball valves across fluid transfer systems.. Configured with threaded FNPS (FNPT/FBSP) inlet and threaded FNPS (FNPT/FBSP) discharge, ideal for both general and specialized applications in diverse working environments. UKCA certified.