Pulsafeeder GreenLine Metering Pump, 57 GPH @ 145 PSI, 316 SS wet end, Leak Detection, No Motor (NEMA 56C)
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Pulsafeeder GreenLine Metering Pump, 57 GPH @ 145 PSI, 316 SS wet end, Leak Detection, No Motor (NEMA 56C)
The GreenLine‑GLM DM4CYAG‑L‑NM is a mechanically actuated diaphragm metering pump in the DM4C hydraulic group, delivering 57 gph (216 lph) at 145 psi (10 bar) with a stroke rate of 140 spm. This model features a 316 stainless steel liquid end for maximum durability and chemical resistance. The “‑L” suffix adds the full leak detection package—double diaphragm, pressure gauge, and 24 VDC leak switch. The “‑NM” suffix indicates the pump is supplied without a motor and includes a NEMA 56C motor adapter for user‑supplied motor integration.
Specifications
- Max Flow: 57 gph (216 lph)
- Max Pressure: 145 psi (10 bar)
- SPM @ 60 Hz: 140 strokes/min
- Motor: Not included — NEMA 56C adapter provided
- Leak Detection: Double diaphragm, pressure gauge, 24 VDC leak switch
- Suction Lift: 10 ft (3 m)
- Process Temperature: 32–113 °F (0–45 °C)
- Ambient Temperature: 32–113 °F (0–45 °C)
- Accuracy: ±2% of set point
- Stroke Adjustment: 0–100%, 1% resolution, auto‑locking
- Viscosity: up to 1,000 cPs
- Connections: 1″ FNPT suction / 1″ FNPT discharge
- Approximate Weight: 51 lb (pump with leak detection)
Materials of Construction
- Wet End: 316L Stainless Steel
- Valve O‑Rings: PTFE
- Check Balls: Stainless steel
- Diaphragm: Composite PTFE
- Housing: Epoxy‑painted aluminum
- Hardware: Stainless steel
Key Features & Benefits
- 316 SS liquid end for maximum durability and chemical compatibility
- Full leak detection package for enhanced containment
- DM4C hydraulic group delivers 57 GPH at 145 PSI
- Supplied without motor for custom motor selection
- NEMA 56C motor adapter included
- SUV check valves improve priming and reduce turbulence
- Sealed gearbox reduces noise and protects internal components
Markets & Typical Applications
- Municipal and industrial water treatment
- Chemical processing and general industrial feed systems
- Power generation and boiler chemical injection
- Mining, metals, and mineral processing
- Applications requiring stainless steel wetted materials with leak detection and no motor
| Product Type: | Diaphragm Metering Pump, Mechanically Driven |
| Brand: | Pulsafeeder |
| Product Line: | GreenLine |
| Housing: | Epoxy Painted Aluminum |
| Max Flow (GPH): | 57 |
| Max Flow (GPD): | 1368 |
| Max Pressure (PSI): | 145 |
| Max Viscosity (CPS): | 1000 |
| Max Strokes per Minute: | 140 |
| Flow Control: | Manual stroke length adjustment (0 to 100%) |
| Turn Down Ratio: | 10:1 |
| Head/Fittings: | 316 SS / 316 SS |
| Valve Balls: | 316 SS |
| Diaphragm: | Composite PTFE |
| Valve / Seat / O-Ring: | 316 SS / PTFE |
| Motor: | No Motor - NEMA 56C Frame Ready |
| Connections: | 1" FNPT |
| Warranty: | 2 Year Limited Warranty |
| Net Weight: | 51 lbs |
| Packaging: | Each |
| Includes: | Installation, Operation, and Maintenance Instruction Manual |
| Working Environment: | 32 to 113°F (0 to 45°C) |



