Piston pump ST-D

for chemicalselectricstationary

The metering pumps ST-D series are driven by an electric motor, the dosage takes place thanks to a PTFE membrane. The ST-D series pumps make their robustness and reliability their main characteristic. • 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: PP, PVC, SS316 or PVDF • Valves: balls in ceramic or SS316L • Ball seats FPM, EPDM or NBR • Valve seats in PVC or PVDF • Membrane in PTFE • IP55 protection degree • F insulation class On request ST-D 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 od motor speed by a 4-20mA signal)