Plunger Piston Motor-driven pumps 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. General Features • Max Flow Rate: ➢ 1027 l/h at 50Hz ➢ 1004 l/h at 60Hz • Max Pressure: 25 bar • Standard power supply: 230-400V 3fase 50Hz • Motor: 0.25, 0.37, 0.55 or 0.75 kW • Frequency: ➢ 60, 103 and 120 strokes/min at 50Hz ➢ 72 and 122 strokes/min at 60Hz • Pump head: PVC, SS316L or PVDF • Valves: ➢ PVC pump head – double ball valves, except for piston Φ95 with single ball ➢ SS316L – Single ball, except for piston Φ16 and Φ30 with double balls • Balls: ceramic or SS316L • Ball seats: FPM, EPDM or NBR • Valves seats: PVC or PVDF • Piston in SS316 or Ceramic • Piston seals NBR, FPM or EPDM • Die-cast aluminum housing protected by epoxy/antiacid paint • Protection degree: IP55 • Insultaion class: F 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 4-20

Technical Features Pressure bar(psi) Flow Rate l/h(Gal/h) *versione con motore maggiorato Pump Head Configurations AP SS316L SS316L SS316L AI SS316L SS316L SS316L BA PVC PVC Ceramic BI PVC PVC Ceramic SA PVDF PVDF Ceramic SI PVDF PVDF Ceramic For other configurations, to contact the headquarters Piston seals NBR Ceramic Valves seats PVDF PVC Piston seals FPM EPDM FPM EPDM FPM EPDM Valves seats PVDF PVDF PVC PVC PVDF PVDF Ball seats Ball seat

Overall Dimensions Descrizione 14 l/h – 25 bar SS316L Pump Head 24 l/h – 25 bar SS316L Pump Head 29 l/h – 25 bar SS316L Pump Head 52 L/h – 20 bar SS316L Pump Head 88 l/h – 20 bar SS316L Pump Head 103 l/h – 18 bar SS316L Pump Head 128 l/h – 12 bar SS316L Pump Head 220 l/h – 9 bar SS316L Pump Head 256 l/h – 7,5 bar SS316L Pump Head 251 l/h – 6 bar SS316L Pump Head 431 l/h – 4,5 bar SS316L Pump Head 503 l/h – 3,5 bar SS316L Pump Head 128 l/h – 18 bar SS316L Pump Head 220 l/h – 16 bar SS316L Pump Head 256 l/h – 13 bar SS316L Pump Head 251 l/h – 9 bar SS316L Pump Head 431 l/h – 7 bar SS316L Pump Head...