About Guanli Valve – Certified Innovation in Custom Valve Solutions Guanli Valve Co., Ltd. is a National High-Tech Enterprise recognized by the Chinese government, specializing in the R&D, manufacturing, and global supply of custom-engineered industrial valves for pulp and paper, wastewater treatment and mining industry. We excel at transforming unique client challenges into reliable valve solutions. Quality & Compliance You Can Trust:. ISO 9001 Quality Management System. CE Certification. EAC Certification.Full compliance with ANSI, EN, and client-specific standards,Guanli Valve delivers high-performance, safety-critical valves—even for extreme temperatures, high pressure, or corrosive services.Guanli Valve will continue to develop advanced valve design, material selection, manufacturing process to meet the requirements of high reliability and long life under different working conditions. Adhere to the provision of high-quality products, strictly abide by international standards, to ensure the safety and stability of the valve and maintenance costs, so as to obtain more market share and establish a good self-owned brand.