Neptune Metering Pumps - Tubular Diaphragm

Neptune Series 500 Tubular Diaphragm Pumps are engineered for viscous fluids up to 20, 000 cP and for medium slurries up to 10% solids. Features and Benefits • No-clog design. Straight-thru flow pattern eliminates pockets where slurries can settle. • Easily handles high viscosity liquids. • Double diaphragm is standard. • Capacities to 80 gph ( 302 lph) . • Control options include electric or pneumatic stroke control and variable speed drives. • Standard units with double ball suction and discharge valves. Single ball suction valve is optional. • Variable Oil By-pass™ stroke adjustment mechanism provides better valve performance than variable linkage designs. • Viton elastomer withstands most chemicals. • Elastomer memory and tube shape reduce NPSH requirements, allow more viscous fluids to be pumped. • Spring-loaded discharge ( Models N3 and N7 only) . External back pressure valve is not required.