Pulsafeeder NextStep™ Precision Metering Pump — 442 GPD @ 43 PSI, 115 VAC
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Pulsafeeder NextStep™ Precision Metering Pump — 442 GPD @ 43 PSI, 115 VAC
The Pulsafeeder NextStep™ NS8ASAKVVT3XXX is a high‑volume metering pump designed for precision chemical feed in industrial and water treatment systems. Its stepper‑motor drive ensures smooth, low‑pulsation flow and accurate metering across a wide turndown range.
This model features a PVDF pump head with FKM elastomers and TFE check balls, providing excellent chemical resistance and low‑friction performance. It includes the standard control package for manual, pulse, batch, and analog input modes.
Standard Control Features
- Manual output control using the front‑panel interface.
- Pulse input for water meters and dry‑contact pacing signals.
- Remote start/stop via external contact closure.
- Low‑tank‑level input for foot‑valve level switch monitoring.
- Analog input (0/4–20 mA or 0–10 VDC) for proportional control.
- Alarm relay output for external notification or interlocks.
- No Modbus or 4–20 mA output in the standard configuration.
Key Performance Advantages
- Max Flow Rate: 18.4 GPH / 442 GPD (70 LPH)
- Max Pressure: 43 PSI (3 BAR)
- NSF61 Certified for potable water applications
- Stepper‑motor drive for precise, repeatable feed control
- PVDF head with FKM seals and TFE balls for low‑friction dosing
| Product Type: | Diaphragm Metering Pump, Mechanically Driven |
| Brand: | Pulsafeeder |
| Product Line: | NextStep |
| Max Flow (GPH): | 18.4 |
| Max Flow (GPD): | 442 |
| Max Pressure (PSI): | 43 |
| Max Viscosity (CPS): | 1,000 |
| Flow Control: | Stepper‑motor dosing with microprocessor‑controlled low‑pulsation flow |
| Turn Down Ratio: | 3,333:1 |
| Head/Fittings: | PVDF |
| Valve Balls: | PTFE |
| Diaphragm: | PTFE |
| Valve / Seat / O-Ring: | FKM B |
| Connections: | Tubing 1/2" O.D. PVC (Suction), 1/2" O.D. PVDF (Discharge), 3/8" O.D. PVC (Venting) |
| Power Supply: | 115 VAC 60 Hz, US Plug |
| Interface: | Manual control, pulse input, remote start/stop, low‑level input, analog input (0/4–20 mA or 0–10 VDC), alarm relay output |
| Operating Modes: | Constant Output, Proportional Control (4-20mA/pulse), Batching, and Timer Functions (daily/weekly) |
| Warranty: | 5 years |
| Net Weight: | 9.0 lbs |
| Includes: | A PVDF injection valve; input/output cables; suction; discharge and bleed return tubing; and a foot valve strainer with integrated low tank level switch, and Operating Manual. |
