Pulsafeeder GreenLine Metering Pump, 38 GPH @ 102 PSI, VFD Package (1‑phase in / 3‑phase out), 316 SS wet end with Leak Detection
Pulsafeeder GreenLine Metering Pump, 38 GPH @ 102 PSI, VFD Package (1‑phase in / 3‑phase out), 316 SS wet end with Leak Detection
The GreenLine‑GLM DM3CVAG‑L is a mechanically actuated diaphragm metering pump in the DM3C hydraulic group, delivering 38 gph (144 lph) at 102 psi (7 bar) with a stroke rate of 140 spm. This model features a 316 stainless steel liquid end for maximum durability and chemical resistance. The integrated VFD package accepts 115/230 V single‑phase input and outputs 230/460 V three‑phase power to the TEFC motor, enabling variable‑speed control and improved process tuning. The “‑L” suffix adds the full leak detection package—double diaphragm, pressure gauge, and 24 VDC leak switch—providing enhanced containment and early warning for critical chemical feed applications. With 1″ FNPT suction/discharge connections, this configuration is ideal for installations requiring stainless steel wetted materials, VFD control, and leak monitoring.
Specifications
- Max Flow: 38 gph (144 lph)
- Max Pressure: 102 psi (7 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, 0.50 HP (0.37 kW)
- Leak Detection: Double diaphragm, pressure gauge, 24 VDC / 0.5 A 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: 76.5 lb (pump with VFD + motor + leak detection)
Materials of Construction
- Wet End: 316L Stainless Steel (head, valve guides, valve seats, valve caps, check balls)
- Valve O‑Rings: PTFE
- Diaphragm: Composite PTFE, double‑sided PTFE coating
- Check Valves: Stainless steel
- Housing: Epoxy‑painted aluminum
- Hardware: Stainless steel
- Lubrication: Oil bath gearbox with sight glass and accessible fill port
Key Features & Benefits
- 316 SS liquid end for maximum durability and chemical compatibility
- Integrated VFD allows variable‑speed control and improved process tuning
- Accepts 115/230 V single‑phase input for simplified installation
- Outputs 230/460 V three‑phase power to TEFC motor
- Full leak detection package for enhanced safety and containment
- Mechanically actuated diaphragm design ensures long service life
- Auto‑locking stroke adjustment prevents drift
- Spherically uniform velocity check valves improve priming and reduce turbulence
- Compact, sealed gearbox reduces noise and protects internal components
- NSF/ANSI/CAN 61 and 372 compliant for many water treatment applications
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 construction with VFD‑based flow control and leak detection
| Product Type: | Diaphragm Metering Pump, Mechanically Driven |
| Brand: | Pulsafeeder |
| Product Line: | GreenLine |
| Housing: | Epoxy Painted Aluminum |
| Max Flow (GPH): | 38 |
| Max Flow (GPD): | 912 |
| Max Pressure (PSI): | 102 |
| 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 56C, 1/2 Hp, 230/460 VAC, 50/60 Hz, 3 Phase |
| Connections: | 1" FNPT |
| Power Supply: | 115/230 VAC, 50/60 Hz, 1 Phase |
| Operating Modes: | Manual, (VFD 10:1) |
| Warranty: | 2 Year Limited Warranty |
| Net Weight: | 76.5 lbs |
| Packaging: | Each |
| Includes: | Installation, Operation, and Maintenance Instruction Manual |
| Working Environment: | 32 to 113°F (0 to 45°C) |





