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MAIN COMPONENTS of PHV Series constant pressure variable speed system • One multistage vertical pump, Goulds Pumps SSV series. • Hydrovar® pump mounted variable speed drive • Pressure transducer for constant pressure control, connected to the Hydrovar drive. • NEMA 4X fused disconnect panel with corrosion resistant durable plastic; external on/off switch with lockout/tagout. Panel is bracket mounted directly to pump. • Electrical panel for control and protection, with casing made of plastic mate