2026-04-16 17:15:06
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ZNFM.Founded in 2013 and headquartered in Wenzhou, Zhejiang Province, China, ZNFM (ZHENGNAN VALVE) is a specialized enterprise dedicated to the research, development, and manufacturing of valves. Its products are widely used in various industrial and municipal sectors, including power plants, petroleum, chemical, pharmaceutical, gas, food, paper, water supply and drainage, air conditioning, and piping systems, providing reliable solutions for fluid control. The company possesses comprehensive production and testing capabilities, equipped with facilities for casting, forging, heat treatment, welding, machining, assembly, testing, and non-destructive testing. Over the years, it has developed a distinctive production process system that reflects its strong expertise in specialized manufacturing. ZNFM operates standardized production workshops where products are manufactured in strict accordance with the ISO 9001 quality management system. All valves undergo CNC precision machining, and finished products are subject to rigorous testing and acceptance procedures to ensure consistent and reliable quality. The company’s core product line centers on hard-seal butterfly valves, offering various drive types—including manual, worm gear, pneumatic, and electric—as well as diverse structural designs such as multi-layer, bidirectional sealing, and double-offset configurations. Specific products include: Hard-Seal Butterfly Valve Series: Manual single-direction double-offset metal-seal butterfly valves, manual flanged elastic hard-seal butterfly valves, and manual wafer-type hard-seal butterfly valves; Worm Gear Hard-Seal Butterfly Valves, worm gear flanged hard-seal butterfly valves, worm gear wafer-type multi-layer hard-seal butterfly valves, worm gear-driven hard-seal butterfly valves, and worm gear-driven wafer-type hard-seal butterfly valves; pneumatic double-offset hard-seal butterfly valves, pneumatic flanged metal hard-seal butterfly valves, pneumatic flanged multi-layer hard-seal butterfly valves, pneumatic flanged elastic hard-seal butterfly valves, and pneumatic hard-seal butterfly valves; Electric wafer-type hard-seal butterfly valves, electric hard-seal butterfly valves, electric flanged metal hard-seal butterfly valves, and electric wafer-type multi-layer hard-seal butterfly valves. Other valve series: gate valves (low- and medium-pressure gate valves, low-pressure cast iron gate valves, medium-pressure GB standard gate valves), globe valves (medium-pressure globe valves, low-pressure globe valves, medium-pressure forged steel globe valves). Through a diversified product portfolio, the company meets the specific requirements of various industries and operating conditions regarding valve sealing performance, drive methods, and pressure ratings.