About us
  WenZhou YouLi Machinery Co., Ltd. is a modern enterprise that integrates design, manufacturing, sales, and services. With a people-oriented approach, technology as its core, market orientation, and quality as its guarantee, the company is committed to providing better fluid system solutions. Its products have good quality, complete varieties, and are produced strictly in accordance with international standards such as ISO, API, ANSI, BS, DIN, NF, JIS, JP, GB, and JB. The company's main products include ball valves, butterfly valves, gate valves, globe valves, filters, pressure reducing valves, safety valves, exhaust valves, angle seat valves, control valves, water control valves, knife gate valves, solenoid valves, discharge valves, steam traps, balance valves, breather valves, diaphragm valves, vacuum valves, needle valves, flame arresters, pumps, pipe fittings, sight glasses, manholes, pneumatic and electric accessories, fluorine-lined valves, and sanitary valves and fittings.

     Nominal diameter ranges from 15mm to 1800mm (1/2" to 80"), nominal pressure ranges from 1.6MPa to 6.4MPa (150Lb to 2500Lb), applicable temperature ranges from -198°C to 1200°C, and connection methods include flange, clamp, welding, socket, internal and external thread, etc. The driving methods include manual, worm gear, pneumatic, and electric. Valve body materials include WCB, LCC, LF2, A105, 304, 304L, 316L, 904L, F51, F44, C5, CK20, etc. The company can also manufacture valves with other materials according to user requirements for various operating conditions. The products are widely used in industries such as petroleum, chemical, natural gas, power, metallurgy, papermaking, and wastewater treatment, and are highly praised by domestic and foreign customers for their excellent quality and premium service.

The company has always emphasized technological innovation as its priority, with scientific and technological management as the means and talent development as the foundation. It actively and conscientiously implements its brand strategy, establishes a business philosophy of "quality first, reputation above all," and is committed to providing more advanced system solutions for the global valve application industry. YOULI sincerely welcomes new and old customers to work together and create a better future!