About us

①Wenzhou Liangzhong Valve Industry Co., Ltd. is situated in Wenzhou, Zhejiang, China. Founded back in 2007, we are a professional manufacturer integrating valve research, development, production and global sales.
Customer satisfaction stands at the heart of our business philosophy. We provide tailor-made valve products to match diverse custom specifications and guarantee on-time delivery in strict accordance with agreed lead times. Supported by a well-trained and proficient technical workforce, we consistently invest in technological R&D to deliver advanced, innovative valve solutions, and fully honor every service commitment made to our partners worldwide.

②We manufacture a full range of industrial valves, including gate valves, check valves, globe valves, ball valves, butterfly valves, plug valves, strainers and cast iron valves. All our products are fabricated in compliance with international standards such as ANSI, API, DIN, GOST, BS, JIS and China GB, as well as customized special requirements from clients.
Our valves are exported worldwide and widely adopted across multiple sectors including natural gas, petroleum, oil refining, chemical engineering, marine, power generation and pipeline transportation.

③Our firm has implemented an internationally recognized quality management system and obtained a full set of authoritative credentials including CE, ISO 9001:2008, NIGC, EAC, TS and AZ certifications.
To further sustain consistent quality control throughout production, we have built an integrated physical and chemical testing laboratory. This lab is fully furnished with complete inspection instruments: spectrum analyzers, portable PMI material identification spectrometers, universal material testing rigs, impact test machines, hardness gauges, tensile testers, thickness measuring meters, magnetic particle flaw detectors, air tightness leak testing equipment, plus a full lineup of non-destructive evaluation (NDE) devices.