17F-3, No.270, Zhongming South Rd., , West Dist., Taichung City , Taiwan, ROC

JOHN-VALVE MFG. FACTORY CO., LTD is a leading Steel and Special Alloy valves manufacturer based in Taiwan since 1981.

JOHN-VALVE supplies reputable industrial valves that are widely used in:
Refinery, Chemical, Petro-chemical, Oil & Gas, Oilfield, Marine, Shipbuilding, Mining, Pulp & Paper, Water & Wastewater, Pharmaceutical, Biotech, Food & Beverage industries. We serve in global market projects. Today, we export to over 80 countries throughout the world.

JOHN-VALVE offers extensive range of top-quality valves for your projects solution.
Specialized for critical environment valve’s applications in High & Low temperature, abrasive and hazard services
Our products are designed and manufactured according to ANSI and JIS and EU European standards and customized requests.

Product Range:

 Ball Valves
 High pressure Ball Valve
 Metal Seated Ball Valve
 Fire Safe Ball Valve
 ATEX Ball Valve
 Cryogenic Ball Valve
 Double Block and Bleed Ball Valve
 Marine Ball Valve
 Bronze Valve
 Gate Valve
 Globe Valve
 Check Valve
 Strainer
 Butterfly Valve
 Bellow Valve
 Needle Valve

We have experience in cooperating successfully with EPC companies worldwide.
Welcome All Global Distribution Network cooperation & Project Inquiry!

John Valve provides quality valves, completes project valves solution, and customizes special alloys castings /forging parts.
All 3rd party and marine approved certifications guarantee perfect quality assurance from John Valve.


 ISO-9001:2015,
 CE/PED 2014/68/EU-Module H
 AD2000-Merkblatt W0, PMA
 EAC Certification
 ATEX 2014/34/EU,
 TA-LUFT/ISO 15848,
 API-6D
 API-607/ISO-10497, BS 6755,
 BS 6364 Cryogenic Test Certified.
 CRN Certificates
 Marine Classification Societies approved in Lloyd’s Register, DNV-GL, Bureau Veritas.

In-plant Testing Laboratory Capability:

 3D coordinate measuring machine,
 Air & Hydrostatic Testing
 Chemical Analysis, PMI test
 Tensile & Charpy impact test
 Cryogenic test, Life cycle test
 NDT- Dye penetration testing and X-Ray testing.

We offer the best service and professional sales team; holds a comprehensive inventory in house to ensure the punctual delivery ; possesses well-educated mechanical engineers for solving the technical issues; continuously innovate new products with research and development; increasing our customer service to a higher level.

The best quality and service are John-Valve’s commitment to all of our dear customers worldwide
With your support, John Valve will continue to guarantee excellence in the industry.

Whenever you need us, John-Valve serves you! Please feel free to send us your inquiry!