Industry Applications

Pharmaceutical industry

In the pharmaceutical industry, vacuum pumps are extensively used in processes such as vacuum drying, concentration, distillation, filtration, degassing, material transfer, freeze-drying, and packaging, providing a stable negative-pressure environment for drug manufacturing. They help reduce processing temperatures for heat‑sensitive materials, prevent component degradation and cross‑contamination, and must comply with GMP requirements for cleanliness, corrosion resistance, oil‑free or low‑oil operation, and sterile integrity.

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Petrochemicals

In the petrochemical industry, vacuum pumps are primarily used in processes such as vacuum distillation, vacuum fractionation, degassing, drying, solvent recovery, vapor–liquid recovery, and material transfer, providing stable negative pressure conditions for flammable, explosive, and corrosive media. They help lower boiling points, minimize thermal degradation of heat‑sensitive components, and reduce energy consumption, while also meeting stringent safety and environmental requirements, including explosion‑proof design, corrosion resistance, reliable sealing, and exhaust gas treatment.

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Fine Chemicals

In the fine chemicals industry, vacuum pumps are extensively employed in unit operations such as reduced-pressure distillation, fractional distillation, solvent removal, drying, crystallization, filtration, degassing, and material transfer, providing stable negative pressure for the production of high-value‑added products in diverse formulations and small batch sizes. They lower the boiling points of heat‑sensitive materials, suppress oxidation and decomposition, and enhance yield and purity, while also requiring corrosion resistance, oil‑free or low‑oil operation, explosion‑proof sealing, and reliable exhaust‑gas treatment to meet the stringent demands of flammable, explosive, and clean‑process applications.

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Iron and Steel Metallurgy

In the steel metallurgy sector, vacuum pumps are primarily employed in processes such as vacuum degassing of molten steel (e.g., RH, VD, VOD), vacuum refining, vacuum casting, vacuum melting, and vacuum heat treatment, providing stable negative pressure under high‑temperature and high‑dust conditions. They effectively remove hydrogen, nitrogen, oxygen, and carbon from molten steel, reducing inclusions and porosity, thereby enhancing steel purity, density, and mechanical properties. These pumps must also exhibit high‑temperature resistance, wear and corrosion resistance, dust‑resistance, and exceptional reliability.

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Electronics industry

In the electronics industry, vacuum pumps are extensively used in manufacturing processes such as etching, CVD/PVD, ion implantation, packaging, leak testing, and material handling—key steps in semiconductor, integrated circuit, display panel, photovoltaic, LED, and vacuum‑coating production. They provide stable, oil‑free negative pressure for clean‑room processes, helping to prevent particle and oil contamination, ensure film purity and high device yield, and meet stringent requirements for ultra‑cleanliness, corrosion resistance, low vibration, low noise, and high reliability.

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Food and beverages

In the food and beverage industry, vacuum pumps are primarily used in processes such as vacuum degassing, deodorization, concentration, distillation, vacuum drying, freeze‑drying, vacuum impregnation, vacuum cooling, vacuum packaging/modified‑atmosphere packaging, and material conveying, providing a gentle negative‑pressure environment for heat‑sensitive materials. They lower boiling points and oxygen levels, help preserve flavor, color, and nutritional content, extend shelf life, and must meet stringent requirements for hygienic design, oil‑free or low‑oil operation, corrosion resistance, easy cleanability (CIP/SIP), and food‑grade safety.

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VOCs control

In the field of VOCs control, vacuum pumps are primarily used in processes such as vapor–liquid recovery, vacuum desorption of adsorbents, vacuum condensation, vacuum pressure swing adsorption (VPSA), collection of tank vent gases, and exhaust gas conveyance, providing stable negative pressure for the capture, recovery, and treatment of volatile organic compounds. They enhance desorption and recovery efficiency, reduce emissions and energy consumption, and must meet stringent safety and environmental requirements, including explosion-proof design, corrosion resistance, leak‑free sealing, oil‑free or low‑oil operation, and compliance with emission standards for exhaust gases.

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Energy-saving retrofitting

In the field of energy‑saving retrofits, vacuum pumps are primarily used to upgrade aging vacuum systems in processes such as distillation, drying, degassing, concentration, crystallization, and VOC recovery. For example, high‑efficiency dry‑type, screw, or variable‑frequency vacuum pumps can replace energy‑intensive liquid‑ring and steam‑jet pumps, complemented by waste‑heat recovery, intelligent control, and multi‑stage series‑connection optimization. This approach significantly reduces electricity, steam, and circulating water consumption, enhances vacuum stability and automation levels, while requiring precise pump selection based on process conditions and optimized designs for sealing, corrosion protection, and heat recovery to ensure both energy‑saving benefits and operational safety and reliability.

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Paper industry

In the papermaking industry, vacuum pumps are primarily used in the wire section and press section for vacuum dewatering, vacuum transfer, felt washing, white water recovery, pulp degassing, vacuum filtration, and paper web transport, providing stable negative pressure to support high-speed continuous production. They enhance dewatering efficiency, paper dryness, and machine speed, while reducing fiber loss and energy consumption. These pumps must also withstand high humidity, fibrous and filled slurries, corrosive white water, and heavy‑duty continuous operating conditions, exhibiting corrosion resistance, clog‑free operation, high reliability, and energy efficiency.

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Wastewater treatment

In the wastewater treatment sector, vacuum pumps are primarily used in processes such as vacuum‑assisted drainage and sewage removal, vacuum priming, vacuum dewatering and filtration of sludge, biogas collection and conveyance, degassing, and chemical dosing and suction, thereby providing stable negative pressure to pipeline networks and treatment units. They help reduce pipe burial depths and leakage, enhance sludge dewatering and gas‑collection efficiency, improve working conditions, and must feature corrosion resistance, clog‑prevention, explosion‑proof design (for biogas), oil‑free or low‑oil operation, and high reliability for continuous service.

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Power industry

In the power industry, vacuum pumps are primarily used in applications such as vacuum extraction in steam turbine condensers, vacuum deaeration, purging of generator hydrogen‑cooling systems, vacuum drying and oil filling of transformers, SF6 gas recovery, and vacuum dewatering of desulfurization gypsum, thereby providing stable negative pressure for thermal systems, electrical equipment, and environmental protection devices. They help maintain condenser vacuum, enhance unit thermal efficiency, prevent equipment from oxidation and moisture ingress, and mitigate gas leaks, while meeting stringent requirements for high‑temperature resistance, corrosion resistance, explosion‑proof performance, ultra‑high vacuum levels, and long‑term, continuous, reliable operation.

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Aerospace

In the aerospace sector, vacuum pumps are primarily employed in space‑environment simulation (thermal vacuum and cold‑black tests), high‑altitude rocket‑engine testing, spacecraft vacuum leak detection, vacuum coating, vacuum forming and infusion of composite materials, vacuum brazing and electron‑beam welding, as well as vacuum insulation. They provide stable negative pressure and high‑vacuum conditions for ground‑based testing, manufacturing and assembly, and on‑orbit environmental simulation. These pumps can replicate the extreme vacuum and cryogenic conditions of space, ensuring the reliability and performance of spacecraft, aircraft components, and propulsion systems, while meeting stringent requirements such as ultra‑high vacuum levels, oil‑free cleanliness, resistance to extreme temperatures, low vibration, high reliability, and long service life.

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