newcomen always provides better quality and services!

We are a valve manufacturer

Why Choose NewComen

We design and manufacture industrial valves in accordance with internationally recognized standards, including ISO, API, and ANSI. Our products are engineered for reliable performance in oil & gas, water, power generation, and chemical applications. Valves can be supplied in a variety of materials—including Carbon Steel (CS), Stainless Steel (SS), Duplex, and high-performance alloys—manufactured to American and European standards. Produced under strict quality management systems, certified processes, and rigorous testing, our valves ensure pressure integrity, safety, and long service life under high pressure, high temperature, and corrosive conditions. Committed to quality, compliance, and global standards, we are a trusted partner for critical flow control solutions.

Industrial Valves Manufactured to
ISO, API & ANSI Standards

For oil & gas, water, power, and chemical industries.

Carbon steel, Stainless Steel, Duplex, and Alloy Materials

Certified for safety, pressure integrity, and long service life.

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Product's Catalogues

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Pictures Gallery

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Oversea Market

WELCO brand valves are exported to more than 30 countries and regions.

WELCO valve serves a variety of industries:Petro-Chemical,Industrial Gas,Pulp&Paper,LNG etc

Products Application

Our Customers