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™ NS8AMAKEEC3XXX is designed for high‑volume chemical feed systems requiring digital communication, remote monitoring, and reliable performance with alkaline or oxidizing chemicals. Its stepper‑motor drive delivers smooth, low‑pulsation flow and precise metering control.
This enhanced model includes Modbus RS‑485 and 4–20 mA analog output for integration with SCADA and PLC systems. The PVDF head with EPDM elastomers and ceramic check balls provides excellent compatibility with a wide range of treatment chemicals.
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 EPDM seals and ceramic balls for oxidizer compatibility
| 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: | EPDM |
| 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. |
