Piston pump ST-P

for chemicalswith electric motorstationary

The metering pumps ST-P series are driven by an electric motor, the dosage takes place thanks to a piston. The ST-P series pumps make their robustness and reliability their main characteristic. • Working Frequency: from 60 to 120 strokes/min at 50Hz - from 72 to 144 strokes/min at 60Hz • Die-cast aluminum housing protected by epoxy/antiacid paint • Pump Head: PVC, SS316L or PVDF • Valves: Balls in ceramic or SS316L • Ball seats: FPM, EPDM or NBR • Valve seats in PVC or PVDF • Piston in SS316 or Ceramic • Piston seals NBR, FPM or EPDM • IP55 protection degree • F insulation class On request ST-P pumps series can be equipped with: Motorizations: • Without motor • UL/CSA motor certification • Single-phase motor • Self-ventilated motor • ATEX motor • Tropicalized motor Hydraulic: • NPT hydraulic connections • Larger dimensions valves Regulation and control by an external signal: • Electric actuator (automatic adjustment of piston “run” by a 4-20mA signal) • Inverter (automatic adjustment of motor speed by a 4-20mA signal)