Hangzhou Longwei Hydraulic Technology Co., Ltd. is a company integrating R&D, production and sales of hydraulic valves, hydraulic pumps, hydraulic cylinders and hydraulic stations. 

Designed to meet the needs of a variety of applications, Yuken Hydraulic Valves provide excellent performance and smooth flow rates in different systems. Their versatility makes them ideal for directing flow and controlling pressure. Each valve is fabricated using top-quality materials that are corrosion-resistant. They are also extremely durable and rigid. Fasteners are provided for securing the valve.

There are two major series of Yuken hydraulic valves: the DSG series. Both are suitable for a wide variety of industrial control systems. The DSG series is a non-impact valve, which reduces noise while shifting directions. It also reduces the vibration of pipelines. In addition, the DSG series hydraulic valves are certified for a variety of environmental and pollution operating conditions.