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Shanghai Zhengyu Pump & Valve Factory is a designated enterprise under the Shanghai Mechanical Industry System. Located in the Jiuting Industrial Zone of Songjiang District, Shanghai, it covers an area of over 5,000 square meters and is a high-tech enterprise integrating research, production, design, and sales. The company possesses more than 100 sets of various mechanical processing equipment, 5 sets of testing equipment, nearly 300 employees, 10 senior technicians, and 20 professional quality inspectors. All valves undergo strict testing before leaving the factory, ensuring product reliability.

In recent years, facing fierce market competition, the company has strengthened quality management, carried out technological transformations of its products, improved process flows, optimized product structure, and enhanced the technological content of its products. As a result, product quality has been further improved, prices have become more reasonable, and product lifespan has been extended. All types of valves produced by the factory are manufactured in accordance with the national standards GB12220-GB12251-89, tested and accepted according to the ZBJ16006-90 and GB13927-92 standards, and inspected by the Shanghai General Machinery Product Quality Supervision and Inspection Station. All technical parameters meet national standards, with the test inspection number MA0217. In 2000, the company successfully passed the ISO9002 quality system certification by an international authoritative certification organization, further establishing its leading position in the valve industry.