Zhejiang Wanlong Machinery

Zhejiang Wanlong Machinery Co., Ltd., based in the Xiaoshan Economic and Technological Development Zone of Hangzhou, is a national specialized and sophisticated little giant enterprise with more than thirty years of high-end valve manufacturing experience. The company operates a 25,000 square meter production base in Xiaoshan plus a precision casting plant of similar scale in Keqiao, Shaoxing, totaling around 44,000 square meters, and provides OEM manufacturing and high-end valve development for leading international brands.

Its product lines cover globe valves, gate valves, control valves, sampling valves, bellows sealed valves, and special valves, including multi-port valves, ammonia valves, molten salt valves for solar thermal power plants, chlorine valves, and bleed valves, serving new energy, petroleum refining, chemical, power, environmental, food, and pharmaceutical industries. Wanlong holds TUV-certified ISO 9001, ISO 14001, and ISO 45001 systems, plus ISO 15848, SIL 3, TA-Luft, API 607, API 6FA, and TS A1/A2/B approvals, and owns more than 100 patents supporting customized fluid control solutions.