Pulsafeeder GreenLine Duplex-Head Metering Pump, 634 GPH @ 73 PSI, VFD Package (1‑phase in / 3‑phase out), 316 SS wet end with Leak Detection, 1.5″ FNPT
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Pulsafeeder GreenLine Duplex-Head Metering Pump, 634 GPH @ 73 PSI, VFD Package (1‑phase in / 3‑phase out), 316 SS wet end with Leak Detection, 1.5″ FNPT
The GreenLine‑GLM DM7HVAH‑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 316 stainless steel liquid ends on both heads 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 chemical feed while maintaining duplex‑head flexibility.
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 316 SS heads)
- Leak Detection: Double diaphragm, pressure gauge, 24 VDC leak switch
- Connections: 1.5″ FNPT suction / 1.5″ FNPT discharge
- Approximate Weight: 329.5 lb (pump + motor + VFD + LD)
Materials of Construction
- Wet End: 316L Stainless Steel (both heads)
- Valve O‑Rings: PTFE
- Check Balls: Stainless steel
- 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
- 316 SS liquid ends for maximum durability and chemical compatibility
- Integrated VFD for variable‑speed control and process optimization
- DM7H hydraulic group delivers 634 GPH at 73 PSI
Markets & Typical Applications
- Municipal and industrial water treatment
- Dual‑chemical feed with leak monitoring
- Chemical processing and general industrial feed systems
- Power generation and boiler chemical injection
- Applications requiring stainless steel 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: | 316 SS / 316 SS |
| Valve Balls: | 316 SS |
| Diaphragm: | Composite PTFE |
| Valve / Seat / O-Ring: | 316 SS / PTFE |
| Motor: | TEFC - NEMA 143/145, 1.5 Hp, 230/460 VAC, 50/60 Hz, 3 Phase |
| Connections: | 1.5" FNPT |
| Power Supply: | 115/230 VAC, 50/60 Hz, 1 Phase |
| Warranty: | 2 Year Limited Warranty |
| Net Weight: | 329.5 lbs |
| Packaging: | Each |
| Includes: | Installation, Operation, and Maintenance Instruction Manual |
| Working Environment: | 32 to 113°F (0 to 45°C) |
