How is the valve pressure and the national standard American standard converted?

Zhengmao Valve Co., Ltd. was established in 1992 in Yubei Town, Yongjia County, Wenzhou City, Zhejiang Province. It is committed to the research and development and manufacture of high-quality industrial valves. The registered capital of the company is 100 million yuan. It is now a national high-tech enterprise and a “contract-conserved contract” in Zhejiang Province. Re-credit "AAA-level enterprises, Zhejiang credit private enterprises. The company now has three major valve production bases in Dongpu Industrial Zone, Zhejiang Lishui Industrial Zone and Tangtou Industrial Zone, with a total area of 78,600 square meters. It has more than 400 employees and 54 middle and senior titles. Now it has formed a complete industrial chain consisting of valve R&D design, valve body precision casting, product machine production, all-round inspection and precision marketing.  The company's 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 and thousands of models. The main materials of the valves are WCB, WC6 and CF8. , CF3, duplex stainless steel, pure titanium, pure nickel, Monel and other hundreds of materials. The products cover high, medium and low pressure valves. The products serve the domestic and international petrochemical, pharmaceutical, metallurgy, electric power, petroleum, water supply and drainage, gas and other industries. Customers all over the world, using quality to create value for customers, and won the city of Wenzhou Famous brand products, Wenzhou famous trademarks and other honors. Quality is the cornerstone of the company's foothold. The company took the lead in passing ISO9001, CE, API, PCCC and other certifications, and obtained the A1 level production license for special equipment pressure pipe components (TS), and established a sound quality system. The company's simulated product real-life conditions have established a valve performance test center, and introduced the German Belek direct reading spectrometer, the American Niton alloy analyzer, the Japanese enamel leak detector, the ultra-low temperature test system, the high temperature test system, and the ultrasonic wave. Advanced testing equipment such as flaw detector, universal material test platform, impact testing machine, gold microscope, ultrasonic thickness gauge and Rockwell hardness tester can carry out all-round inspection on the valve to ensure the safe operation of the product under various severe working conditions. Innovation is the driving force for enterprise development. The company has set up a special industrial valve research and development center. The center has 31 research and development personnel. Now it is a national high-tech enterprise and Wenzhou science and technology enterprise. It has won 45 national patents, including 4 invention patents. It has also cooperated with famous universities such as Shaanxi University of Science and Technology and Xi'an Jiaotong University for a long time to carry out industry-university-research cooperation and achieved fruitful scientific research results. In the future, Zhengmao will continue to lead the development of industrial valves with quality and innovation, and respond to the ever-changing challenges of the global valve field.