About Us

Zhengzhou Langqing is a leading manufacturer in the field of industrial filtration, specializing in the research, development, and production of high-quality liquid and air filtration materials. Committed to providing high-performance filtration solutions, we serve major industrial sectors globally, covering mainstream industries such as chemical processing, water treatment, coatings and paints, electricity, petroleum, biotechnology, electronic plating, food and beverage, laboratories, and microelectronics. We can adapt to various complex industrial scenarios, ensuring the cleanliness standards and optimal quality of liquids and air in industrial environments.

1. Liquid filtration solution

We can provide a full range of liquid filtration solutions for multiple scenarios, fully adapting to various industrial application needs. The core liquid filtration product categories and their advantages are as follows:

• Liquid filter bag: Suitable for medium to high-flow liquid filtration scenarios, it offers high cost-effectiveness and strong practicality, making it an economical and efficient solution for industrial liquid filtration.

• Filter cartridge: Precisely developed and designed for various liquid filtration conditions, it possesses core advantages such as high dirt holding capacity, high filtration precision, and excellent filtration efficiency, meeting the needs of refined liquid filtration.

Liquid filtration products serve the following industries:

Power generation

Industrial manufacturing

Petrochemical industry

Pharmaceuticals

Food and beverages

Water treatment

Coatings, paints, and inks

Oil and natural gas

Electronic plating

Metallurgy

various fields such as paper making.

2. Air filtration solutions

Air filters are specialized industrial air filtration devices, widely used in cleanrooms, clean workshops, laboratories, and other clean environments. They are also suitable for dust filtration in electronic, mechanical, and communication equipment. The products are divided into a full range of models, including initial-efficiency, medium-efficiency, and high-efficiency models. Each model meets different industry standards and usage conditions, offering strong adaptability.

Core air filtration products

• Primary filter: Primarily used in central air conditioning and centralized ventilation system filtration, large air compressor filtration, clean return air systems, as well as pre-filtration systems for medium and high-efficiency filtration devices. It features low cost, lightweight, strong versatility, and compact structure. It can initially capture large particles of dust, effectively extending the service life of downstream filters.

• Medium efficiency filter: suitable for medium-precision air filtration environments, capable of efficiently adsorbing fine particulate matter, significantly optimizing the air quality in workshops and equipment, and suitable for conventional industrial clean ventilation scenarios.

• High-efficiency filter: Utilizing a high-precision air filtration design, it achieves ultimate air purification, ensuring the air purity in high-precision settings such as clean rooms and semiconductor manufacturing. It is widely applicable to critical production environments with stringent air quality requirements, including pharmaceutical facilities, electronic manufacturing, and food production.

Air filtration products serve the following industries:

industrial manufacturing

Heating, Ventilation, Air Conditioning and Commercial Buildings

Chemical Engineering and Energy

Healthcare and Pharmaceuticals

Food and Beverage

Semiconductor and electronic information

Agriculture

paint booth

and many other industries and scenarios.

3. Global Coverage and Professional Technology

With our unwavering commitment to innovation and quality, we serve a diverse global customer base, covering multiple countries and regions including China, Canada, the United States, Europe, Australia, New Zealand, Malaysia, Thailand, South America, and South Africa. Our team has deep expertise in the field of industrial filtration, and can provide reliable, customized filtration solutions tailored to the specific needs of different regions and industries, accurately meeting the high standards of applications in the global industrial sector.

The company strictly adheres to the ISO 9001 international quality management system standard in carrying out production control. All products undergo rigorous testing and inspection from multiple dimensions and high standards before leaving the factory. From raw material selection, production processing to finished product testing, the entire process controls product quality to ensure that every product delivered to each customer is both practical and durable, allowing for long-term stable and reliable use.

Whether you are looking for solutions for air filtration, liquid filtration, or both, we can provide a one-stop solution. We are a trusted industrial filtration partner for customers worldwide.