Pulsafeeder GreenLine Metering Pump, 7.9 GPH @ 145 PSI, 115/230 V, with 316 SS wet end
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Pulsafeeder GreenLine Metering Pump, 7.9 GPH @ 145 PSI, 115/230 V, with 316 SS wet end
The GreenLine-GLM DM2A1AC is a rugged, mechanically actuated diaphragm metering pump delivering precise chemical dosing with low cost of ownership. Powered by a 115/230 V, 60 Hz TEFC motor, it features a 316 SS wet end, 0.5″ FNPT suction and discharge connections, and is rated for 7.9 gph (30 lph) at 145 psi (10 bar). Its compact industrial design, sealed gearbox, and reliable stroke adjustment make it ideal for water treatment, chemical processing, power generation, and other demanding industrial applications.
Specifications
- Max Flow: 7.9 gph (30 lph)
- Max Pressure: 145 psi (10 bar)
- SPM @ 60 Hz: 88 strokes/min
- Motor: 0.50 HP (0.37 kW), TEFC, 115/230 V, 60 Hz, 1-phase
- Suction Lift: 10 ft (3 m)
- Process Temperature: 32–113 °F (0–45 °C)
- Ambient Temp Range: 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: 0.5″ FNPT suction / 0.5″ FNPT discharge
- Approximate Weight: 50 lb (pump with motor)
Materials of Construction
- Wet end: 316L SS (head, valve guides, valve seats, valve caps, check balls)
- Valve O-rings: PTFE
- Diaphragm: composite PTFE, double-sided PTFE coating
- Check valves: stainless steel or ceramic (per application)
- Housing: epoxy-painted aluminum
- Hardware: stainless steel
- Lubrication: oil bath gearbox with accessible fill and sight glass
Key Features & Benefits
- Mechanically actuated diaphragm design for robust, reliable chemical dosing and long service life
- Auto-locking stroke adjustment for drift-free, accurate flow control over a 10:1 turndown
- Secure diaphragm sealing technology for leak-free operation and improved chemical containment
- Spherically uniform velocity check valves to reduce turbulence, improve priming, and handle solids
- Compact, lightweight, fully sealed gearbox to minimize noise and protect internal components
- Non-metallic, never-seize motor coupling for easy motor installation and removal
- Flat, solid mounting feet for stable installation and easy skid integration
- Optional leak detection and VFD packages available on other GreenLine configurations
- NSF/ANSI/CAN 61 and NSF/ANSI 372 certified for many water treatment applications
Markets & Typical Applications
- Municipal and industrial water and wastewater treatment
- Power generation and boiler feed chemical dosing
- Chemical processing, refining, and petrochemical services
- Mining, metals, and mineral processing
- pH control, coagulation, flocculation, and disinfection
- Dosing acids, caustics, polymers, biocides, cleaners, and other process chemicals
| Product Type: | Diaphragm Metering Pump, Mechanically Driven |
| Brand: | Pulsafeeder |
| Product Line: | GreenLine |
| Housing: | Epoxy Painted Aluminum |
| Max Flow (GPH): | 7.9 |
| Max Flow (GPD): | 189.6 |
| Max Pressure (PSI): | 145 |
| Max Viscosity (CPS): | 1000 |
| Max Strokes per Minute: | 88 |
| 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: | TEFC - NEMA 56C, 1P, 1/2 Hp |
| Connections: | 1/2" FNPT |
| Power Supply: | 115/230 VAC, 60 Hz, 1 Phase |
| Warranty: | 2 Year Limited Warranty |
| Net Weight: | 50 lbs |
| Packaging: | Each |
| Includes: | Installation, Operation, and Maintenance Instruction Manual |
| Working Environment: | 32 to 113°F (0 to 45°C) |
