PBG220W Core Parameters
Product Features
Nitrogen Purge
Standard N₂ purge port. Injected nitrogen forms a gas barrier, isolating corrosive media and preventing contaminant buildup – protects rotors and pump body.
Oil‑Free & Clean
Dry‑running design, no oil in pump chamber. Oil‑vapor‑free exhaust – no contamination of process or environment. Ideal for semiconductor, pharma, food.
High Vacuum
PBG series: 1–2 Pa, PDG series: 5 Pa. Both outperform ordinary screw pumps – meet high‑vacuum needs from precision coating to chemical distillation.
Corrosion‑Resistant & Explosion‑Proof
Optional special coating and explosion‑proof motor for aggressive gases or flammable/explosive environments – suitable for chemical, pharma, lithium battery.
Water‑Cooled & Stable
Water‑cooled structure, high cooling efficiency, supports continuous operation. No need for compressed air – controlled operating cost.
Specifications
| Model | Pumping Speed (m³/h) | Ultimate Vacuum (Pa) | Motor Power (kW) | Motor Speed (RPM) | Noise (dB) | Max Water Consumption (L/min) | Inlet (mm) | Outlet (mm) | Pump Head Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| PBG50W | 181 | 2 | 4 | 3450 | 82 | 8 | 40 | 50 | 255 |
| PBG100W | 354 | 2 | 7.5 | 3450 | 83 | 15 | 40 | 50 | 365 |
| PBG180W | 635 | 1 | 15 | 3450 | 83 | 25 | 50 | 65 | 570 |
| PBG220W | 780 | 1 | 22 | 3450 | 84 | 35 | 65 | 80 | 660 |
| PBG300W | 1098 | 1 | 30 | 3450 | 85 | 45 | 80 | 100 | 810 |
Applications
Puyan screw vacuum pumps are widely used in:
Industrial Production
For electronics, metallurgy, semiconductor – handles water vapor and light dust, delivers clean vacuum.
Food Packaging
Oil‑free vacuum for continuous stretch film packaging, thermoforming – ensures food safety and shelf life.
Medical Equipment
Core of central suction systems – continuous, contamination‑free vacuum for operating rooms and wards.
Laboratory
For freeze drying, analytical instruments, molecular pump backing – completely oil‑free, no wear.
Central Vacuum System
Centralized supply in large plants (electronics, printing, pharma) – significant energy savings vs. distributed pumps.
Chemical & Pharmaceutical
Vacuum distillation, drying, solvent recovery – oil‑free design prevents contamination, meets GMP.