DWVP-30pro DWGM-4C Corrosion Resistant Diaphragm Vacuum Pump

DWVP-30pro DWGM-4C Brochure

Applications of DWVP-30pro and DWGM-4C

  • Rotary Evaporation: Vacuum support for solvent mixtures, extracts and concentrated solutions during rotary evaporation.
  • Vacuum Concentration: Provides vacuum for reaction solutions, solvent extracts and purified fractions during reduced-pressure concentration.
  • Vacuum Filtration: Vacuum source for suspensions, precipitates and liquid samples using compatible filtration systems.
  • Corrosive Vapor Processes: PTFE vacuum path supports compatible processes involving acidic, alkaline or organic solvent vapors, subject to medium compatibility.
  • Laboratory Vacuum Processes: Suitable as a vacuum source for compatible reduced-pressure synthesis, evaporation and sample-preparation workflows.
Applications of Circulating Water Vacuum Pump

FAQ

DWVP-30pro provides 2.1 m³/h, while DWGM-4C provides 3 m³/h maximum pumping speed.

Both models are specified at 5 mbar.

Yes. DWVP-30pro operates from 30–1800 rpm, while DWGM-4C operates from 30–2000 rpm.

No. The DWGM-4C data shows pumping speed decreasing from 50 L/min at 1013 mbar to 5 L/min at 5 mbar.

Both inlet and outlet use an 11 mm / 1/2″ hose joint.

The specified ambient operating range is 10–40°C.

They are marketed as corrosion-resistant diaphragm vacuum pumps, but this brochure does not specify wetted materials. Compatibility with the actual medium should therefore be confirmed before use.

Specifications of DWVP-30pro and DWGM-4C

ModelDWVP-30pro DWGM-4C
Maximum pumping speed at 50/60 Hz2.1m³/h 3m³/h
Limit vacuum5mbar / 3.6torr
Number of pump heads/series4 / 3
Operating ambient temperature10 – 40°C
Storage ambient temperature-10 – 60°C
Maximum outlet absolute pressure1.1bar
Air inlet interface（DN）11mm / 1/2 Hose joint
Air outlet interface（DN）11mm / 1/2 Hose joint
Rated motor power0.25kW
Adjustable speed at 50/60 Hz30 ~ 1800 RPM/min30 ~ 2000 RPM/min
Speed of air extraction/1013 mbar：50L/min900 mbar：45 L/min750 mbar：40 L/min600 mbar：35 L/min480 mbar：30 L/min360 mbar：25 L/min250 mbar：20 L/min150 mbar：15 L/min50 mbar：10 L/min5 mbar：5L/min
Degree of protectionIP 40
Overall size360*260*260mm
Weight16kg16kg
  • Washer
    Washer
  • Washer
    Washer
  • Multi-manifold
    Multi-manifold
  • Heating Pot
    Heating Pot
  • Cooling Device
    Cooling Device
  • Evaporating Flask
    Evaporating Flask
  • Evaporating Flask
    Evaporating Flask
  • Evaporating Flask
    Evaporating Flask
  • Evaporating Flask
    Evaporating Flask

Why Choose Us?

  • One-Station Shopping

“Multiple suppliers” have always been an issue in the procurement process. Drawell as a one-stop laboratory equipment and scientific instruments supplier, can perfectly solve this problem. In addition to manufacturing our own equipment, we also represent other laboratory equipment. Our product lines are rich and diverse at competitive prices. Provide one-stop service to customers.

  • Customer-centric Services

User Training – Training by Drawell skilled engineers about installation, debug tests, technical services, etc. It can happen in our factory in China, or at the site in the customers’ country. Cost depends on where and when the training happens.

  • Online Support

To discuss the problem and get it resolved, online chats, real-time video calls, and remote guidance. For the after-sales stage, our online technical guidance is free and ready forever.

  • 100% Quality Guarantee Policy

1 year free official warranty, including repairing quality-damaged parts, and offering replacements of selected parts (shipping cost is extra). 5% of the product price is charged for extending the warranty before the end of the official warranty.

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