Zhengyuan Valve Group Co., Ltd., based in Wenzhou’s Longwan District, has steadily developed its valve products for the fertilizer industry over years of manufacturing experience. The company produces gate, globe, check, and ball valves that serve petrochemical and fertilizer production applications. Fertilizer manufacturing, particularly urea and ammonia production, involves high pressures, elevated temperatures, and corrosive media such as ammonium carbamate, requiring valves with strong corrosion resistance and reliable sealing performance. Zhengyuan offers a wide material selection including carbon steel, alloy steel, stainless steel, Monel, and lined valves, with pressure ratings from 150Lb to 2500Lb and temperature ranges from -196°C to 800°C to accommodate various process conditions. The company maintains a comprehensive quality system from raw material inspection to finished product testing, supporting its practical, quality-first approach to serving the fertilizer industry’s demanding requirements.