Yung Yu Special Joint | Leader in Flexible Joints

About

Since its establishment in 1968, Yung Yu has accumulated over 55 years of expertise in specialized DI flexible pipeline joints and valves for water supply and hydraulic industries. Certified under ISO 9001, we provide innovative pipeline solutions and industrial fittings that meet global standards, including AWWA (U.S.), JIS (Japan), CNS (Taiwan), and Hong Kong Waterworks.
Our products hold patents across Germany, the U.S., and China, and have received international invention awards. With proven performance in major projects such as the Hong Kong International Airport Three-Runway System, the Macau Bridge, Hong Kong Tung Chung Area, Taiwan High-Speed Rail, and various science parks, Yung Yu has earned long-term trust worldwide—your reliable partner for high-quality DI flexible pipeline solutions.

Flexible Expansion Joint

As climate change increases the demand for clean water, traditional pipelines struggle to deliver re...

Dynamic Force Balanced Pipe

With its new piston chamber design, Yung Yu's force balanced pipes eliminate the need for thrust blo...

Custom Castings & Precision Machining

Yung Yu provides customized products including gate valves, fire hydrants, water meter box, and othe...

Flexible Expansion Joint

As climate change increases the demand for clean water, traditional pipelines struggle to deliver re...

Dynamic Force Balanced Pipe

With its new piston chamber design, Yung Yu's force balanced pipes eliminate the need for thrust blo...

Custom Castings & Precision Machining

Yung Yu provides customized products including gate valves, fire hydrants, water meter box, and othe...

Features

Over 50 Years of Experience

With 55 years of expertise in specialized pipe designs and valve manufacturing for the water utility industry, our proven experience is the strongest assurance for our customers.

High Precision Automated Production

Equipped with state-of-the-art machinery and individual inspection of every item, we deliver top-notch products with unmatched speed and consistency.

Internationally Recognized Standards

With a proven track record of upholding high business standards and succeeding in international projects and competitions, we have earned multiple global recognitions and certifications.

Customized Solutions

Drawing on global project experience, we deliver OEM solutions customized for every unique application and need.

Quality

From individual parts to finished products, we uphold consistent quality throughout.

Each item undergoes full inspections. Ensuring the highest standards. Delivering superior performance and complete assurance.