Leading Specialists
for Gas Analysis, Emission Measurement, Industrial Processes
From sample gas pumps for analyzing process gases to emission monitoring, the transfer of highly explosive media and the recovery of valuable gases, KNF's solutions are used wherever it is crucial for processing media to be handled with special care.
Applications for KNF Gas and Liquid Pumps:
▪ Mobile/portable gas measurement technology
▪ Stationary emission measurement technology
▪ Handling processing media in industrial processes
Reliable and Safe Where it Matters Most
As a global technology leader in diaphragm pumps and systems for moving liquids and gases, KNF supports customers by drawing on more than 70 years of knowledge and expertise. This is evident through development milestones, such as corrosion-resistant diaphragm pumps for chemical and process engineering, the temperature-resistant and heated pump head for hot gases of up to 240 °C and the double diaphragm pump for transferring hazardous and valuable gases. When it comes to implementing KNF diaphragm pumps that are tailored precisely to your process and operating conditions, your specifications set the benchmark right down to the smallest details.
KNF – Your Partner
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Most Recent Innovations
NMP 830 DC-BI
NMP 850 DC-BI
N 680.1.2 Ex
N 630 Ex
N 630
Higher Compactness, Robustness, Durability Thanks to Latest DC-BI Motor Design
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- Flow rate: max. 3.1 l/min
- Ultimate vacuum: max. 250 mbar abs.
- Operating pressure: max. 1.4 bar rel.
- Customizing available
- Tested to customers specs
- High performance to size, efficiency and weight ratio
- Excellent reliability/durability
- Speed controllable
- Low sound level
- Long service life
- Uncontaminated transfer
- Maintenance-free
- High chemical resistance
- Can be installed in any position
- FDA listed parts available
Further Product Information
Higher Compactness, Robustness, Durability Thanks to Latest DC-BI Motor Design
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- Flow rate: max. 4.5 l/min
- Ultimate vacuum: max. 230 mbar abs.
- Operating pressure: max. 2.5 bar rel.
- Customizing available
- Tested to customers specs
- High performance to size, efficiency and weight ratio
- Excellent reliability/durability
- Speed controllable
- Low sound level
- Long service life
- Uncontaminated transfer
- Maintenance-free
- High chemical resistance
- Can be installed in any position
Further Product Information
ATEX Pump Series for Safe Emission Protection and Product Recovery in Processes Handling Explosive Media
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- Flow rate: max. 220 l/min
- Ultimate vacuum: max. 150 mbar abs.
- Operating pressure: max. 3.0 bar rel.
- High chemical resistance
- Durable even with difficult operating conditions
- High gas tightness up to 6 x 10-3 mbar x l/s as a standard
- Flameproof motor with intrinsically safe terminal box for simple installation
Further Product Information
Versatile ATEX Gas Pump Series for Transferring and Compressing Gases and Vapors, and Generating Vacuum Without Contaminating the Media
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- Flow rate: max. 68 l/min
- Ultimate vacuum: max. 25 mbar abs.
- Operating pressure: max. 9.0 bar rel.
- High chemical resistance
- Durable even with difficult operating conditions
- High level of gas tightness: approx. 6 x 10-3 mbar x l/s
- Flameproof motor with intrinsically safe terminal box for simple installation
- High maximum operating pressure even in explosive environments
- .12 version with additional safety diaphragm for preventing gas from escaping through cracks in the working diaphragm
Further Product Information
Versatile Diaphragm Gas Pump Series for Transferring and Compressing Gases and Vapors, and Generating Vacuum Without Contaminating the Media
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- Flow rate: max. 68 l/min
- Ultimate vacuum: max. 25 mbar abs.
- Operating pressure: max. 12.0 bar rel.
- High chemical resistance
- Durable even with difficult operating conditions
- High level of gas tightness
- Ambient temperatures of up to 60 °C possible with water cooling
- Stable transfer rate at all pressure levels throughout process
- Quiet operation with minimal vibration
- .12 version with additional safety diaphragm for preventing gas from escaping through cracks in the working diaphragm
Further Product Information
Our Best Pumps for Gas Analysis, Emission Measurement and Industrial Processes
Here you will get an overview of all our pumps, which can beused for integration with hand-held/portable devices, for integration into stationary emission measurement system and for handling processing media in industrial processes.
Get the Overview here
Our brochure gives a comprehensive overview about our all-round expertise in meeting complex requirements.
KNF Modular System
How We Collaborate to Optimize Your Pump
Every application is different and some are one of a kind. Our modular system is designed to give you a high degree of flexibility, speed and reliability. You can be sure that every gas and liquid pump supplied by KNF will exactly meet your requirements, no matter how complex or unusual these might be. This includes a broad range of accessories. We work closely with you to design customized project pumps that give you a competitive edge in your target market. From its configuration to its testing conditions and packaging as well as customized warehouse and logistics concepts – your project pump is tailored to your particular needs.
Series Models – The First Step to Customized Pumps
KNF offers a range of 70 series models designed for handling gases and liquids. The performances of these are described in our data sheets.
The KNF Modular System for Creating Customized Pumps
It is easy to tailor every series model to meet application-specific requirements by selecting and combining a variety of options. These range from the material used to make the pump components that come into contact with the media, to the drive and the mechanical elements such as the circuit points and connections. To meet the requirements even better the KNF modular system has been expanded to include the “DIGITAL CUSTOMIZATION” motor option. “DIGITAL CUSTOMIZATION” sets our brushless DC motors apart, allowing for their unique configuration. These motors exhibit complex operating profiles with comprehensive safety equipment, allowing you to benefit from improved energy efficiency, precise management of target values and easy digital control. The configurations created by the KNF modular system are based on tried and tested individual components, meaning that developing customized pumps is quick and inexpensive.
Project Pumps – Precisely Designed for the Application
We support your development project by providing you with sample pumps quickly and easily. In consultation with you, our employees from the sales, engineering, and product management divisions determine the modifications to be made to the product's standard technical parameters.
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