About us

ABOUT US

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Zhejiang Weien Valve Co., Ltd., located in Oubei Town, Yongjia County, a nationally renowned "Hometown of Pumps and Valves" and often referred to as "Little Pudong" of Wenzhou, and one of the top 100 towns in China, is a newly emerging large-scale diversified enterprise integrating research, development, production, sales, and service. The company boasts strong technical capabilities, advanced production processes, complete testing equipment, reliable quality, scientific management, and a wide variety of products. All performance indicators and technical methods in production and testing strictly adhere to or meet relevant national standards.


The company's main products include gate valves, globe valves, check valves, butterfly valves, ball valves, and special valves, totaling thousands of models and specifications. Products are manufactured according to advanced domestic and international standards such as ISO, API, ANSI, BS, DIN, NF, JIS, GB, and JB. Product nominal diameter NPS: 3/8-56”, DN10-1400m; Pressure rating: Class: 150LB-2500LB (PN0.1MPa-42MPa); Operating temperature: -196℃-680℃. The main materials for the valves are carbon steel, alloy steel, stainless steel, titanium, Monel, and Alloy 20, etc., and they are smelted and manufactured according to customer requirements. Currently, the products are widely used in petrochemical, petroleum, natural gas, power, metallurgy, construction, gas, and water supply industries, and are exported to the Middle East, Southeast Asia, Russia, Africa, and other countries and regions. The product quality is stable and reliable, and it is highly praised by customers.


To ensure product and service quality, the company has established a comprehensive quality management and assurance system, and was among the first to pass ISO9001-2000 quality management system certification, API 6D system certification, CE EU safety certification, and State Administration for Quality Supervision, Inspection and Quarantine (TS) certification.


The company possesses advanced testing and inspection equipment, and has established a first-class chemical analysis and materials mechanical properties laboratory. It boasts a German SPECTRO direct-reading spectrometer, metallographic microscope, spectroscope, electro-optic analytical balance, hydraulic universal testing machine, swing impact testing machine, Brinell optical hardness tester, Leeb hardness tester, ultrasonic thickness gauge, ultrasonic flaw detector, and three-channel magnetized fluorescent magnetic particle flaw detector, among other instruments and equipment. It also possesses comprehensive pressure testing equipment to ensure that product pressure testing meets standards and customer requirements.


Times may change, but our commitment remains unchanged. We at Wein always adhere to the principle of "survival through quality, customer first, and user foremost," and are dedicated to creating a new corporate philosophy of "professional spirit, professional manufacturing, and professional service." We repay the support of new and old customers with excellent quality and perfect service. We welcome new and old customers to visit us for guidance, business negotiations, and to create a brilliant future together.