Name: Nitrogen Purge Screw Vacuum Pump PBG50W
Brand: PUYAN
SKU: PBG50W

PUYAN

PBG50W Core Parameters

Main technical parameters are shown below.

Pumping Speed

181m³/h

Ultimate Pressure

2Pa

Motor Power

4.0kW

Total Weight

255kg

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.

Nitrogen Purge Screw Vacuum Pump PBG50W