Pulsafeeder GreenLine Duplex-Head Metering Pump, 634 GPH @ 73 PSI, PVDF wet end, No Motor (NEMA 143/145 Frame), 1.5″ FNPT / ANSI 150# Combo
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Pulsafeeder GreenLine Duplex-Head Metering Pump, 634 GPH @ 73 PSI, PVDF wet end, No Motor (NEMA 143/145 Frame), 1.5″ FNPT / ANSI 150# Combo
The GreenLine‑GLM DM7HYFH‑NM is a mechanically actuated duplex‑head diaphragm metering pump in the DM7H hydraulic group, delivering 634 gph (2400 lph) at 73 psi (5 bar) with a stroke rate of 140 spm. This model features dual PVDF liquid ends with FKM valve O‑rings for excellent compatibility with aggressive chemical solutions. The “‑NM” suffix indicates the pump is supplied without a motor and includes a NEMA 143/145 frame adapter for user‑supplied motor integration.
Specifications
- Max Flow: 634 gph (2400 lph)
- Max Pressure: 73 psi (5 bar)
- SPM @ 60 Hz: 140 strokes/min
- Motor: Not included — NEMA 143/145 frame adapter provided
- Configuration: Duplex‑head (two PVDF heads)
- Connections: 1.5″ FNPT + 1.5″ ANSI 150# flange combination suction / discharge
- Approximate Weight: 203 lb
Materials of Construction
- Wet End: PVDF (both heads)
- Seat O‑Rings: FKM
- Check Balls: Ceramic
- Valve O‑Rings: FKM
- Diaphragms: Solid PTFE
- Housing: Epoxy‑painted aluminum
- Hardware: Stainless steel
Key Features & Benefits
- Duplex‑head design for higher total flow or dual‑stream dosing
- PVDF wetted materials for excellent corrosion resistance
- DM7H hydraulic group delivers 634 GPH at 73 PSI
- Supplied without motor for custom motor selection
- NEMA 143/145 frame adapter included
Markets & Typical Applications
- Municipal and industrial water treatment
- Handling aggressive chemicals, oxidizers, and corrosive solutions
- Dual‑chemical feed
- Chemical processing and general industrial feed systems
- Applications requiring non‑metallic wetted materials in duplex configuration
| Product Type: | Diaphragm Metering Pump, Mechanically Driven |
| Brand: | Pulsafeeder |
| Product Line: | GreenLine |
| Class: | Duplex |
| Housing: | Epoxy Painted Aluminum |
| Max Flow (GPH): | 634 |
| Max Flow (GPD): | 15216 |
| Max Pressure (PSI): | 73 |
| 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: | PVDF / PVDF |
| Valve Balls: | Ceramic |
| Diaphragm: | Composite PTFE |
| Valve / Seat / O-Ring: | PVDF / FKM / FKM |
| Motor: | No Motor - NEMA 143/145 Frame Ready |
| Connections: | 1.5" FNPT |
| Warranty: | 2 Year Limited Warranty |
| Net Weight: | 203 lbs |
| Packaging: | Each |
| Includes: | Installation, Operation, and Maintenance Instruction Manual |
| Working Environment: | 32 to 113°F (0 to 45°C) |
