Plunger/Piston
| Identification | |
| Manufacturer | ProMinent |
| Series | alpha |
| Model / size | alpha 0220 |
| Dosing type | Plunger/Piston |
| Pump class | Category D — Plunger/piston, ultra-high-pressure positive displacement. Packing-sealed. Accuracy ±1.0%. Best for: enhanced oil recovery, high-pressure injection, calibration. Limit: 2.2 L/h, 200.0 bar. Zero internal slip. |
| Spec code | DSG-139 |
| Dosing duty | |
| Min flow | 0.5 L/h |
| Max flow | 2.2 L/h |
| Max pressure | 200 bar |
| Dosing accuracy | 1 % |
| Stroke frequency | 80 spm |
| Suction lift | 2 m |
| Max viscosity | 500 cP |
| Control & drive | |
| Control type | Analog 4-20mA + Pulse |
| Stroke adjustment | Manual 0-100% |
| Power | 902 W |
| Supply voltage | 100-230 VAC V |
| IP rating | IP65 |
| Materials & chemical | |
| Liquid end | SS316/Plunger |
| Diaphragm | N/A (Plunger seal) |
| Valve / ball | SS316/Check valve |
| pH range | 2-12 (general purpose) |
| Chemical compatibility | High-pressure small volume, solvents, acids, bases |
| Application | |
| Service | Chemical Process, Laboratory, Pilot Plant |
| Key features | ProMinent alpha 0220 plunger pump, 2.2 L/h at 200 bar, small high-pressure dosing, PTFE packing, 1% accuracy |
A complete, shareable page for a single pump. It plots the performance curve (head, efficiency and NPSHr against flow, with the best-efficiency point marked, or dosing flow against stroke), decodes the API 682 / ISO 21049 mechanical seal plan, and lists the full specification — duty and operating range, drive and motor, materials of construction, build and reliability, connections, weight and certifications. Pop-up panels give the type-specific preventive-maintenance schedule (daily to annual tasks with procedures) and a troubleshooting guide (symptoms, probable causes and recommended solutions).
Run a centrifugal pump near its BEP and keep dosing pumps in their recommended stroke band. Data is from the engineering reference database — confirm against the manufacturer's certified curve before procurement.
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