Digital Metering Pumps
Ligao DG Digital Metering Pump
Ligao DG digital metering pump with stepper vector drive and HMI. Diaphragm models ~7.5–2000 L/h, up to ~1.6 MPa; modular for plunger/hydraulic heads.
Max flow
7.5–2000 L/h (diaphragm type)
Max pressure
max. approx. 1.6 MPa (16 Bar)
Turndown / accuracy
accuracy ±1%
Wetted materials
PVC / PVDF / PTFE / SS304 / SS316L
Protection
—
Power
220V 50/60Hz, power approx. 20–1100 W
Features
- Stepper vector drive, turndown 1000:1
- HMI touchscreen; remote/local modes
- Modbus RTU; 4–20 mA / pulse
- Optional pressure/level/timer modules
- Accuracy ±1%, IP65
Specifications
| Flow range | 7.5–2000 L/h (diaphragm type) |
| Max pressure | max. approx. 1.6 MPa (16 Bar) |
| Accuracy | accuracy ±1% |
| Stroke / control | flow; analog / pulse / remote |
| Wetted materials | PVC / PVDF / PTFE / SS304 / SS316L |
| Diaphragm / plunger | PTFE composite diaphragm (optional double diaphragm) |
| Power supply | 220V 50/60Hz, power approx. 20–1100 W |
| Drive | motor digital drive |
Applications
Materials & media
| Wetted materials | PVC / PVDF / PTFE / SS304 / SS316L |
| Diaphragm / plunger | PTFE composite diaphragm (optional double diaphragm) |
Common chemicals: NaOCl, acids, alkalis, polymers — confirm compatibility when inquiring.
Controls & communication
| Stroke / control | flow; analog / pulse / remote |
Models & specs
| Model | Flow | Pressure | Power | |
| DGA7.5/1.6 | 7.5 L/h | 1.6 MPa | see manual | |
| DGA15/1.0 | 15 L/h | 1.0 MPa | see manual | |
| DGA30/0.8 | 30 L/h | 0.8 MPa | see manual | |
| DGA60/0.4 | 60 L/h | 0.4 MPa | see manual | |
| DGB60/1.0 | 60 L/h | 1.0 MPa | see manual | |
| DGB120/0.7 | 120 L/h | 0.7 MPa | see manual | |
| DGB200/0.5 | 200 L/h | 0.5 MPa | see manual | |
| DGC500/0.6 | 500 L/h | 0.6 MPa | see manual | |
| DGC940/0.4 | 940 L/h | 0.4 MPa | see manual | |
| DGE1500/0.4 | 1500 L/h | 0.4 MPa | see manual | |
| DGE2000/0.3 | 2000 L/h | 0.3 MPa | see manual |
Dimensions & installation
Dimensional drawings available on request (CAD / PDF).
Downloads
Related / accessories
Digital Metering Pumps
Milton Roy Smart (Ruizhi) Intelligent Digital Mechanical Diaphragm Pump (SDP)
Digital Metering Pumps
Pulsa E-Pro Digital Smart Diaphragm Metering Pump
Digital Metering Pumps
SEKO Elektra Series Digital Metering Pumps
Digital Metering Pumps
Grundfos DME Digital Dosing Pump
Digital Metering Pumps
Iwaki IX Digital Solenoid Metering Pump
Digital Metering Pumps
Milton Roy LMI EXCEL XR Digital Metering Pump
Related solutions
Chemical Process Precision Dosing
Reactor feeding, pH neutralization and catalyst injection with hydraulic diaphragm and plunger pumps.
Municipal Wastewater Dosing
Integrated dosing systems combining metering pumps and online water quality monitoring for coagulation, disinfection and dephosphorization.
Power Plant Boiler Water
Ammonia, hydrazine and phosphate dosing with sampling monitoring to prevent corrosion and scaling.
Need help selecting?
Share duty (flow, pressure, media, controls) — we reply within 1 business day.