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™ NS8AMAKVVC3XXX is a high‑volume precision metering pump designed for automated chemical feed systems requiring remote monitoring and control. Its stepper‑motor drive and microprocessor control deliver smooth, low‑pulsation flow with fine turndown capability.
This model includes the enhanced communications package, adding Modbus RS‑485 digital control and 4–20 mA analog output. The PVDF head with FKM elastomers and ceramic balls ensures chemical resistance and long service life.
Advanced Control Features (Modbus + 4–20 mA Output)
- Modbus RS‑485 communication for full digital control and monitoring.
- 4–20 mA analog output for retransmitting pump speed, flow, or status.
- Manual output control via front‑panel interface.
- Pulse input for water meter pacing and dry‑contact signals.
- Remote start/stop through 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.
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 ceramic balls for chemical resistance
| 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: | Ceramic |
| 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, Modbus RS‑485 communication, 4–20 mA analog output (retransmit) |
| 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. |
