Pulsafeeder GreenLine Duplex-Head Metering Pump, 634 GPH @ 73 PSI, VFD Package (1‑phase in / 3‑phase out), PVDF wet end with Leak Detection, 1.5″ FNPT / ANSI 150# Combo
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Pulsafeeder GreenLine Duplex-Head Metering Pump, 634 GPH @ 73 PSI, VFD Package (1‑phase in / 3‑phase out), PVDF wet end with Leak Detection, 1.5″ FNPT / ANSI 150# Combo
The GreenLine‑GLM DM7HVFH‑L 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 corrosion‑resistant PVDF liquid ends on both heads with FKM valve O‑rings and includes the full leak detection package—double diaphragm, pressure gauge, and 24 VDC leak switch. The integrated VFD provides variable‑speed control for precise duplex‑stream metering.
Specifications
- Max Flow: 634 gph (2400 lph)
- Max Pressure: 73 psi (5 bar)
- SPM @ 60 Hz: 140 strokes/min
- Motor/Drive: VFD package — 115/230 V 1‑phase input, 230/460 V 3‑phase output
- Motor Enclosure: TEFC, 1.5 HP, NEMA 143/145 frame
- Configuration: Duplex‑head (two PVDF heads)
- Leak Detection: Double diaphragm, pressure gauge, 24 VDC leak switch
- Connections: 1.5″ FNPT and 1.5″ ANSI 150# flange combination suction / discharge
- Approximate Weight: 307.5 lb (pump + motor + VFD + LD)
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 two chemical streams
- Full leak detection package for enhanced containment
- PVDF liquid ends for excellent corrosion and chemical resistance
- Integrated VFD for variable‑speed control and process optimization
- DM7H hydraulic group delivers 634 GPH at 73 PSI
- FKM valve O‑rings improve compatibility with aggressive chemicals
Markets & Typical Applications
- Municipal and industrial water treatment
- Handling aggressive chemicals, oxidizers, and corrosive solutions
- Dual‑chemical feed with leak monitoring
- Chemical processing and general industrial feed systems
- Applications requiring non‑metallic wetted materials with leak detection and VFD control 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: | 4-20mA or 0-10VDC signal input controls stroke frequency, Manual stroke length adjustment (0 to 100%) |
| Turn Down Ratio: | 100:1 |
| Head/Fittings: | PVDF / PVDF |
| Valve Balls: | Ceramic |
| Diaphragm: | Composite PTFE |
| Valve / Seat / O-Ring: | PVDF / FKM / FKM |
| Motor: | TEFC - NEMA 143/145, 1.5 Hp, 230/460 VAC, 50/60 Hz, 3 Phase |
| Connections: | 1.5″ FNPT and 1.5″ ANSI 150# Flange Combination |
| Power Supply: | 115/230 VAC, 50/60 Hz, 1 Phase |
| Warranty: | 2 Year Limited Warranty |
| Net Weight: | 307.5 lbs |
| Packaging: | Each |
| Includes: | Installation, Operation, and Maintenance Instruction Manual |
| Working Environment: | 32 to 113°F (0 to 45°C) |
