Explosion-proof gas pump, certified for explosion-proof standards.
Acquired Japan's explosion-proof certification, allowing safe use for sampling and gas transfer of flammable gases including hydrogen gas.
- Explosion-proof structure electrical machinery and equipment type certification passed - Increased safety explosion-proof structure, pressure-resistant explosion-proof structure - Motor division grade: Ex II 2G Ex h IIB+H2 T4 Gb
basic information
Explosion-proof gas pump N87 series Basic flow rate: 7.5 l/min Achievable vacuum level: 140 mbar abs Maximum allowable discharge pressure: 1.5 bar (0.15 MPa) Explosion-proof gas pump N922 8L series Basic flow rate: 9 l/min ± 10 % (fixed flow rate) 4 - 9 l/min ± 10 % (variable flow rate) Achievable vacuum level: 350 mbar abs Maximum allowable discharge pressure: 1.5 bar (0.15 MPa) Explosion-proof gas pump N922 16L series Basic flow rate: 18 l/min ± 10 % (fixed flow rate) 12 - 18 l/min ± 10 % (variable flow rate) Achievable vacuum level: 200 mbar abs Maximum allowable discharge pressure: 1.5 bar (0.15 MPa)
Price information
Please contact us separately.
Delivery Time
Model number/Brand name
KNF Explosion-proof Gas Pump
Applications/Examples of results
- Transfer of flammable and explosive gases - Sampling of flammable and explosive gases
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News about this product（7）
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Gas pump for green hydrogen electrolysis process
Oxygen Sampling Pump: Required Characteristics: Leak-tight specification / Degreasing treatment Recommended KNF Pumps: N96STDC-B-M / N96KTDC-B-M (Customized specification) / N87ST.9E (Customized specification) Hydrogen Sampling Pump: Required Characteristics: Leak-tight specification / Explosion-proof specification (Japan Explosion-proof Certification for Hydrogen, compatible with IIC & IIB + H2) Recommended KNF Pumps: N87ST.9E Ex (Customized specification) / N922ST.9E Ex
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Examples of the use of KNF pumps in biogas treatment systems.
Biogas is an important pillar for the energy industry in aiming for a sustainable future. Biogas produced from various organic materials such as corn stalks and liquid fertilizers is a carbon-neutral fuel since it does not use fossil fuels. However, this promising energy source also has technical challenges that require cutting-edge solutions. This involves several steps where pumps play a fundamental role, and KNF is pleased to provide the ideal technology. There are multiple challenges in the transport and compression of biogas. The raw biogas emitted from bioreactors is usually fully saturated with water and contains impurities and about 40% carbon dioxide (CO2). Furthermore, this gas is flammable and must not be released into the atmosphere as it is a potent greenhouse gas. Due to these characteristics, pumps that are highly airtight, do not affect the integrity of the medium, and can easily handle various chemicals and condensate are required.
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Hydrogen pump technology
- High energy efficiency (energy-saving) - Safety - Durability From generation to conversion into electrical energy for fuel cells, KNF's pumps guarantee smooth operation in all areas. For over 20 years, KNF has been developing liquid and gas pumps. The materials and technologies of our modular pumps are precisely tailored to specific applications. Our strength lies in using our well-tested pump series as a starting point for collaborative engineering with our customers. KNF has remained a reliable partner in both research and industry worldwide for decades. Our diaphragm pumps are essential components in many hydrogen projects in laboratories and continuous production. Our flexible modular system has repeatedly proven its ability to meet new demands with very short innovation cycles.
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Supporting green energy technology
The energy sector is undergoing significant changes due to environmental issues. This has led to an active exploration of new energy sources, such as solar and wind power, biofuels, green hydrogen, and new energy carriers like ammonia. Additionally, there are ongoing efforts to improve and optimize existing technologies and processes to eliminate unnecessary emissions and enhance efficiency. KNF plays a crucial role in both areas and takes pride in being part of the solutions to this major global challenge. - Diaphragm pumps for sustainable energy technology - Hydrogen energy - Syngas and biogas business - Improving midstream efficiency - How KNF can support energy transition
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How is safety ensured in LNG propulsion for ships?
Vessels powered by LNG are revolutionizing ship propulsion with cleaner and lower emissions technology. KNF's explosion-proof diaphragm pumps play a crucial role in ensuring safety through continuous leak testing of gas control systems, complying with strict ATEX specifications and marine certifications. Gas control systems utilizing explosion-proof diaphragm pumps must continuously monitor LNG supply and the controlled combustion process of large engines to ensure the reliability and safety of the integrated gas control system. For this reason, each safety module of the gas control system used is equipped with at least two diaphragm pumps, such as the KNF N680.1.2 Ex.
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KNF was founded by Kurt Neuberger in 1946 in Freiburg, Germany (Freiburg im Breisgau). Since then, we have been a family-owned independent company providing our customers with security and stability. Over the years, we have achieved steady growth and expanded our business globally while accumulating experience. Currently, with 17 subsidiaries worldwide, we continue to deepen our expertise in various industries and advance the expansion of product applications. As a company specializing in the development, design, manufacturing, and sales of diaphragm pumps and gas and liquid handling systems, we have established our position globally as a provider of customer-oriented solutions to address challenges. Innovation means having an open attitude towards new approaches and various methods, and appropriately judging and identifying what will be needed for the future. By bringing together expertise from various engineering fields, including mechanical engineering, materials, fluid engineering, electronics, and software, we strive to find optimal and smart solutions for all applications, not only for our customers' current needs but also for their future requirements.