Laboratory Vacuum Pump
Laboratory Vacuum Pumps Nahita: diaphragm, water-jet and rotary vane.
Compact solutions for filtration, distillation and drying, with oil-free, high-vacuum and recirculating options.
Oil-free, low-noise diaphragm pumps with 10, 20 and 30 L/min flow rates for clean, continuous vacuum.
Water-recirculating pump (Venturi effect): stable vacuum up to −0.09 MPa and dual use as a cooling circuit.
Rotary vane pump (oil-lubricated): high performance with ultimate vacuum down to 0.05 mbar for demanding processes.
Laboratory Vacuum Pumps
Nahita vacuum pumps are designed to cover a wide range of laboratory applications, combining performance, reliability and ease of use. Manufactured under strict quality standards, they offer specific solutions according to the nature of the work — from oil-free, maintenance-free processes to high-vacuum systems with oil lubrication or water cooling.
Membrane Vacuum Pumps — 20 L/min and 30 L/min Series
The Nahita membrane vacuum pumps stand out for their oil-free operation, low noise level and absence of vibrations. Thanks to their self-cooling system, they allow continuous operation for up to 24 hours without overheating. They are equipped with a maintenance-free 160 W motor and NBR membranes, ensuring long service life and high efficiency. These pumps are ideal for applications in pharmaceutical, chemical, biochemical, food analysis and academic research laboratories. Each unit includes a vacuum gauge and connection hose (approx. 800 mm long, 12 mm outer Ø, 7 mm inner Ø) for quick and easy integration into any vacuum system.
Their compact, stable and quiet design (<50 dB), together with their ability to generate vacuum levels down to 50 mbar and flow rates of 20–30 L/min depending on the model, makes them the perfect choice for filtration, distillation or other laboratory processes requiring clean, oil-free and stable vacuum performance.
Model Comparison
| Specifications | Membrane (20 L/min) | Membrane (30 L/min) |
|---|---|---|
| Pumping speed | 20 L/min | 30 L/min |
| Maximum vacuum pressure | ≥ 0.08 MPa (200 mbar) | ≥ 0.095 MPa (50 mbar) |
| Number of heads | 1 | 2 |
| Motor power | 160 W | 160 W |
| Inlet / outlet | ɸ 6 mm / silencer | ɸ 6 mm / silencer |
| Noise level | < 50 dB | < 50 dB |
| Operating temperature | 7 – 40 °C | 7 – 40 °C |
| Dimensions (L×W×H) | 215 × 120 × 235 mm | 300 × 120 × 235 mm |
| Weight | 7.5 kg | 9 kg |
| Nominal voltage | 230 V AC, 50 Hz | 230 V AC, 50 Hz |
| Membrane / valve material | NBR* | NBR* |
| Function | Vacuum | Vacuum |
Water Jet Vacuum Pump
The Nahita water jet vacuum pump operates based on the Venturi effect, where a centrifugal pump drives water from the tank at high velocity through two vacuum nozzles, producing efficient and continuous suction. This system requires no oil or maintenance and combines vacuum and cooling functions in a single device, as it can also supply cooling water for evaporation, distillation, crystallisation, filtration and sublimation processes.
It features a 15 L water tank, vacuum flow rate of 10 L/min per port and a vacuum pressure of –0.09 MPa, with a centrifugal pump delivering 60 L/min and an 8 m head. Its quiet operation (<45 dB) and 280 W power make it particularly suitable for use in academic, pharmaceutical, food and general research laboratories. Compact dimensions (395 × 290 × 450 mm) and a weight of 10 kg ensure easy installation and portability.
Rotary Vane Vacuum Pump
The Nahita rotary vane vacuum pump is a robust and reliable unit designed for applications requiring high and stable vacuum levels. Constructed entirely from metal, it features a rubber-based anti-vibration base and non-slip feet for enhanced stability, as well as a carrying handle for easy mobility. It includes a main ON/OFF switch and uses HFV-32 vacuum pump oil (330 mL capacity) to ensure efficient lubrication and extended service life of the rotary system.
It achieves a final vacuum of 0.05 mbar (3 × 10⁻¹ Pa) with a free air displacement of 4.5–5 CFM, depending on the voltage (110 V / 60 Hz or 220 V / 50 Hz). With 1/2 HP power and a rotation speed of up to 3,500 rpm, the pump delivers consistent and uniform performance. Its compact size (290 × 115 × 220 mm) and 9 kg weight allow easy integration into laboratory setups or dedicated vacuum systems.
Applications and General Advantages
The Nahita vacuum pump range provides tailored solutions for various laboratory needs — from oil-free, low-maintenance equipment to high-vacuum lubricated systems or combined vacuum and cooling units. Altogether, they offer:
- Quiet and stable operation for continuous use.
- Durable construction and long-lasting materials.
- Compatibility with a wide range of laboratory techniques.
- Models optimised for filtration, drying, distillation, crystallisation and evaporation.
- Compact design, easy installation and minimal maintenance.