About us

Company Profile

Yuyao Dalong Air Compressor Parts Co., Ltd. is a director unit of the Compressor Branch of the China General Machinery Industry Association, a first-level supply network unit of China National Petroleum & Natural Gas Group Corporation, a designated enterprise for producing compressor parts by the former Zhejiang Provincial Department of Machinery, and a key backbone enterprise in Ningbo. The company was founded in 1968 and has a production history of nearly sixty years for compressor valves and accessories. The company has strong product design and development capabilities, a complete quality control assurance system, and complete production equipment and testing methods. The product quality is stable and reliable, the price is fair and reasonable, and the supply service is timely. It has been widely praised by the compressor manufacturing industry, petrochemical industry, oil refining industry, steel, smelting, shipbuilding industry, pharmaceutical and food industry, national defense department, CNG gas stations, and foreign merchants, and has obtained a good reputation for quality and service. The company will design gas valves and pipeline check valves that meet the actual operating conditions of your compressor for free to ensure the long-term stable operation of your compressor.

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Core advantages

Authoritative Qualifications and Profound Industry Accumulation

As a director unit of the Compressor Branch of the China General Machinery Industry Association, a first - level supply network unit of PetroChina, etc., the company has multiple endorsements of qualifications from official and industry - authoritative institutions. At the same time, since its establishment in 1968, it has accumulated nearly 60 years of professional production experience. It has a profound understanding of the technical research and development, production processes of compressor accessories, and the working condition requirements of various industries. It has a high degree of credibility and market recognition within the industry.

Customized Technology and Full - chain Quality Assurance

The company has a strong product design and development ability. It can customize gas valves and pipeline check valves that are suitable for the actual working conditions of customers' compressors free of charge, accurately addressing personalized needs. At the same time, it has a complete quality control system, advanced production equipment, and testing methods. It strictly controls the entire process from design to production and testing to ensure the stable and reliable quality of products and to guarantee the long - term stable operation of customers' equipment.

Extensive Market Verification and an Efficient Service System

The products are not only the fixed - point supporting choices of large compressor factories in Shanghai, Wuxi, etc., but are also widely used in more than 20 well - known petrochemical and refining enterprises such as Qilu Petrochemical and Daqing Petrochemical. They have withstood the verification of high - demand industrial scenarios. Moreover, the supply service is timely and efficient, and can quickly respond to customers' needs. Combining the cross - industry praise accumulated over the years (covering fields such as petroleum, steel, national defense, and foreign merchants), it has formed a dual - advantage reputation of "reliable quality + efficient service".tell your story online can make all the difference.

"Core Power, Precise Flow Control - Dalong Compressor Valves, Born for Efficient Compression!"

High Sealing Performance | Extra-long Lifespan | Multi-scenario Adaptability | Customized Design

Historical Heritage

Founded in 1968, it has been dedicated to the R & D and production of compressor valves and accessories for nearly 60 years. It was originally a designated enterprise by the Zhejiang Provincial Department of Machinery, embodying the inheritance and stability of technology.

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E-mail:12935453@qq.com
Tel:+86 13958393685