Zhengmao Valve Co., Ltd. is headquartered in Oubei Town, Wenzhou City, China. It has been devoted to the R&D and manufacture of industrial valves for 30 years and has been devoted to the effective control and performance optimization of industrial pipelines. At present, the registered capital of the enterprise is 100 million yuan, with more than 500 employees. It is a state-owned high-tech enterprise, a AAA-class enterprise in Zhejiang Province that abides by contracts and attaches great importance to credit, and an honest private enterprise in Zhejiang Province. Zhengmao will continue to lead the development of industrial valves with quality and innovation to meet the ever-changing challenges in the global valve field.
The leading products include gate valves, butterfly valves, ball valves, globe valves, check valves, discharge valves, filters, special valves, etc. There are more than 60 series, thousands of models and specifications...
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Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category. Ball valves have been widely used in various industries and have developed into a major valve category.
Product quality is the cornerstone of the company's foothold, because of the relentless pursuit of quality, the company has passed ISO9001, ISO14001, ISO18001, CE, API, PCCC and other certifications, obtained special equipment pressure pipe components (TS) A1 production license, established a perfect Quality assurance system. The valve performance test center was established in the real application environment of the company's analog products, and the German Belek direct reading spectrometer, the American Niton alloy analyzer, the Japanese Shimadzu quality leak detector, the ultra-low temperature test system, and the ultrasonic flaw detector were introduced. , universal material testing platform, impact testing machine, gold microscope, ultrasonic thickness gauge, Rockwell hardness tester and other advanced testing equipment for all-round testing of the valve, product test temperature from low temperature minus 196 ° C to high temperature zero above 500 ° C range Precise control ensures that the product operates safely under all kinds of severe conditions.
The PN, Class, which we usually use, is a representation of pressure. The difference is that the pressure they represent is different from the reference temperature. The PN European system refers to the pressure at 120 °C, while the CLass is beautiful. The mark refers to the pressure corresponding at 425.5 ° C
More>>A valve is a device used in a fluid system to control the direction, pressure, and flow of a fluid. It is a device that allows the flow and stop of the medium (liquid, gas, powder) in the piping and equipment and can control its flow...
A valve is a device used in a fluid system to control the direction, pressure, and flow of a fluid. It is a device that allows the flow and stop of the medium (liquid, gas, powder) in the piping and equipment and can control its flow...
A valve is a device used in a fluid system to control the direction, pressure, and flow of a fluid. It is a device that allows the flow and stop of the medium (liquid, gas, powder) in the piping and equipment and can control its flow...
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