The Company
Niwei Valve is a specialized manufacturer of high-performance control valves, integrating R&D, engineering, manufacturing, and testing under one roof. With decades of hands-on experience in valve production, the company has grown into a technology-driven enterprise serving industrial clients worldwide. Niwei was a featured exhibitor at the 2010 Shanghai World Expo, a recognition of its engineering capabilities and industry standing.
The company operates on a modern management framework, supported by an ERP system that ensures full traceability and operational efficiency. Its engineering team includes senior specialists and technical professionals who drive continuous improvement in product design and process optimization. All product development is carried out using 3D modeling, which shortens lead times while enhancing precision and reliability.
Products
Niwei Valve focuses exclusively on control valve solutions, offering a broad portfolio that covers pneumatic, electric, electronic, and self-operated types across a wide range of configurations. Key product categories include:
Electric control valves – single-seated, double-seated, cage-type, three-way, high-pressure, cryogenic, jacketed, and more
Pneumatic control valves – single-seated, double-seated, cage-type, three-way, high-temperature, low-temperature, bellows-sealed, and PTFE-lined versions
Electronic control valves – precision-engineered models with built-in servo amplifiers for direct signal reception, available in single-seated, double-seated, cage-type, three-way, and angle-type high-pressure designs
Self-operated regulators – pressure regulators, temperature regulators, electric temperature regulators, micro-pressure regulators, and nitrogen blanketing valves
Control ball valves – pneumatic and electric O-type and V-type, suitable for both shut-off and regulating duties
Specialty valves – diaphragm valves, sanitary valves, quick shut-off valves, and finned-bonnet designs for high-temperature service
All products are manufactured to international standards, including GB, HG, JB, API, ANSI, DIN, and JIS, ensuring compatibility with diverse project specifications worldwide.
Applications
Niwei’s control valves are engineered for reliability in demanding industrial environments and are widely used across multiple sectors:
Petrochemical and refining – process control, cracking, and product transfer
Power generation – including nuclear plant auxiliary systems
Chemical and metallurgical – corrosive media, high-temperature processes, and slurry handling
Municipal engineering – water supply, wastewater treatment, and district heating
Pharmaceutical and food processing – sanitary and hygienic applications
Mining and urban infrastructure – abrasive media and building services
With a strong track record in these industries, Niwei’s products have earned multiple certifications and are backed by proven performance in the field.
Capacity
Niwei operates a well-equipped manufacturing facility with a full range of advanced machinery, including machining centers, CNC lathes, vertical and horizontal lathes, boring mills, milling machines, drilling units, and shot-blasting equipment.
The company maintains a comprehensive quality system that covers every stage of production, from raw material inspection through to final testing. Each component is produced with dedicated tooling and process documentation, ensuring consistent accuracy and repeatability.
Testing capabilities are extensive and include spectrographic analysis, hardness testing (Brinell and Rockwell), impact testing, ultrasonic thickness measurement, and hydraulic valve test benches. In addition, Niwei has established specialized laboratories for nuclear-grade and cryogenic product testing, meeting the most stringent industry requirements.
The production team consists of highly trained technicians and certified specialists who bring both skill and experience to every order. Niwei’s commitment to quality is backed by a culture of continuous improvement, ensuring that every valve delivered meets or exceeds customer expectations.
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