Mechanical Diaphragm Pumps
LEWA ecodos Mechanical Diaphragm Metering Pump
LEWA ecodos mechanically actuated diaphragm metering pump for low pressure; no hydraulic oil contamination risk. Per lewa.com/cn: ~16–1460 L/h per head, up to ~20 bar; monitored 4-layer sandwich diaphragm; metering accuracy ~±1%.
Max flow
approx. 16–1460 L/h (50 Hz)
Max pressure
max. approx. 20 bar (stainless steel); plastic approx. 5–12 bar depends on
Turndown / accuracy
approx. ±1%
Wetted materials
approx. 16–1460 L/h (50 Hz)
Protection
—
Power
—
Features
- Mechanical diaphragm actuation — no hydraulic oil in process fluid
- 4-layer PTFE sandwich diaphragm + monitoring
- Low-pressure precise metering; turndown ~1:50
- Six sizes LEB–LEG; 316/316L, PVC, PVDF, PTFE options
- Multiplex for low pulsation / recipe metering
- VFD or stroke adjustment integration
Specifications
| Flow per head | approx. 16–1460 L/h (50 Hz) |
| Discharge pressure | max. approx. 20 bar (stainless steel); plastic approx. 5–12 bar depends on |
| Metering accuracy | approx. ±1% |
| Diaphragm | 4 monitoring PTFE diaphragm |
| Brand | LEWA |
Applications
Materials & media
| Diaphragm | 4 monitoring PTFE diaphragm |
Common chemicals: NaOCl, acids, alkalis, polymers — confirm compatibility when inquiring.
Controls & communication
Control options are listed in notes or confirmed on inquiry.
Models & specs
| Model | Flow | Pressure | Notes | |
| ecodos LEB | 16 L/h | 20 bar (SS) / 12 bar (plastic) | 50 Hz; VA -10/+80 °C | |
| ecodos LEC | 52 L/h | 10 bar | 50 Hz | |
| ecodos LED | 170 L/h | 10 bar | 50 Hz | |
| ecodos LEE | 336 L/h | 7.5 bar | 50 Hz | |
| ecodos LEF | 520 L/h | 7.5 bar | 50 Hz | |
| ecodos LEG | 1460 L/h | 5 bar | 50 Hz |
Dimensions & installation
Dimensional drawings available on request (CAD / PDF).
Downloads
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