Products from KNF NEUBERGER GmbH: Technological Leadership in Diaphragm Pumps and Vacuum Systems

High-Performance Pumps for Laboratory and Industry: KNF as the Benchmark for Precision

KNF NEUBERGER GmbH is globally recognized for its pioneering technology in diaphragm vacuum pumps and chemically resistant liquid pumps. With proven series such as LABOPORT® and LIQUIPORT®, KNF offers solutions specifically tailored to demanding applications in laboratories, analytics, and process industries, including:

• Distillation
  
  

• Filtration
  
  

• Liquid transfer
  
  

• Desiccation
  
  

• Rotary evaporation
  
  

KNF Diaphragm Pumps – Key Advantages

Precise Vacuum Control

KNF diaphragm pumps like the N 022 AN.18 or N 035.1.2 AN.18 provide consistent vacuum performance with high chemical resistance. Models with IP20 protection class are ideal for standard laboratory conditions.

Durability Through Robust Materials

Chemically resistant LABOPORT® models (e.g., N 820 G / N 840 G) feature PTFE-coated wetted parts—critical for handling aggressive media and thermal stress.

Low Maintenance & Energy Efficient

Thanks to oil-free diaphragm technology, downtime is minimized. At the same time, energy-efficient designs—like those in the NF 100/NF 300 series—enable sustainable operation.

Modularity & Accessory Compatibility

KNF offers a comprehensive range of accessories:

• Steam tubes
  
  

• Protective hoods
  
  

• Pulsation dampers (FPD 1.06)
  
  

• Power adapters
  
  

• Structured membranes (e.g., EPDM280 for N811.18)
  
  

Product Highlights for Everyday Lab Use

LABOPORT® Diaphragm Pumps

Ranging from, this series covers everything from routine tasks to highly specialized processes. Models like LABOPORT® SH 820 G / SH 840 G integrate advanced control systems for automated vacuum regulation.

SC 920 G Vacuum System

This fully automated system with precise vacuum control and chemically resistant diaphragm pump is designed for complex tasks like rotary evaporation.
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RE 212 FW-G Rotary Evaporator

Used with KNF pumps, this evaporator ensures safe and efficient distillation under reduced pressure.
Optional safety hood available for—for greater protection of temperature-sensitive samples.

LIQUIPORT® NF Series for Liquid Transfer

Chemically resistant NF 100/300 and NF 1.100/1.300 pumps provide flexible solutions for handling aggressive or viscous liquids.

• Typical flow range: 0.3 – 3.3 m³/h
  
  

• Pressure performance up to 4 bar
  
  

Key Considerations When Purchasing a Pump

• Application Requirements
  For vacuum-based processes like distillation or filtration, a chemically resistant LABOPORT® pump is ideal. For liquid transfer, choose the LIQUIPORT® series.
  
  

• Performance Specs
  Select based on required vacuum (e.g., 100 mbar) and flow rate (e.g., 3.3 m³/h for the N 035.1.2 AN.18).
  
  

• Material Compatibility
  For corrosive media, opt for PTFE components or FKM seals (VE=2 ).
  
  

• Noise Levels
  KNF pumps with optimized diaphragm design are ideal for noise-sensitive lab environments.
  
  

• Energy Efficiency & Integration
  Accessories like pulsation dampers and condensers with mounting hardware help optimize lab setups.
  
  

Industry Trend: Automation & Chemical Resistance

Research and development labs are increasingly seeking fully integrable, software-controlled pumping systems. KNF addresses this demand with connectable controllers, intelligent regulation loops, and long-life components designed for aggressive media—making them ideal for modern lab and R&D environments.