VACUUBRAND Diaphragm pump ME 4R NT 20731100

The VACUUBRAND Diaphragm pump ME 4R NT (20731100) is a one-stage, oil-free diaphragm pump designed to generate vacuum and provide compression for non‑corrosive gases in laboratory and process applications. The unit is equipped with adjustable inlet (vacuum) and outlet (overpressure) regulator valves and manometers to set and display the selected vacuum and compression levels. Wetted parts are made from aluminum and selected plastics (including PTFE diaphragms and valves) to permit handling of a wide range of non‑corrosive gases.

Key Features:

• Model: ME 4R NT
• Manufacturer part number: 20731100
• One-stage, oil-free diaphragm design
• Adjustable inlet (vacuum) and outlet (overpressure) regulator valves with manometers
• Wetted materials: aluminum and selected plastics (PTFE diaphragms and valves)
• Rated for 230 V, 50 Hz with CEE mains connection (variant shown with CEE plug)
• Free air capacity / pumping speed: approximately 4 m³/h

Advantages:

• Oil-free operation — no oil changes required, reducing maintenance and contamination risk.
• Adjustable vacuum and overpressure control via regulator valves and manometers for precise process settings.
• Corrosion‑resistant wetted materials (aluminum, PTFE/select plastics) allow use with a wide range of non‑corrosive gases and improve chemical compatibility.