High Temperature Ball Valves  Manufacturers, Traders, Suppliers

JOHN-VALVE MFG FACTORY CO., LTD. is a 100 % valve manufacturer based in Taiwan since 1981 that is trustworthy with Precisely Machining, High-Quality Products, and Puntual Delivery time.
Industries We Serve:
With over 30 years of valve experience, obtaining completed international certificates, and a high-end quality control system, our products are widely used in the global market and different kinds of projects, such as Marine & Shipbuilding, Oil & Gas, Petrochemical, Chemical, Food& Beverage, Pulps&Paper, Etc.
Product Standard We Design:
Today, John-Valve exports to over 80 countries throughout the world by designing and providing our valve products according to EN European, ANSI, and JIS standards and customized requests.
As markets change and energy awareness rises, John-Valve is also actively developing high-end products that meet government and market demands, such as Cryogenic Ball Valves, Metal Seated Ball valves, Hydrogen Ball valves, and High-Performance valves.
Other Service We Provide:
John-Valve not only provides the completed valves, and valve packages but also can offer the valve components OEM service, such as stainless steel Ball, the core of Ball Valve. With grinding and lapping in-house, John-Valve can make high-quality stainless steel balls with Roundness under 0.007 mm and surface roughness under the N3 requirement, metal balls, and seated sets with high-quality tightness with leakage rate A. Other customized parts are also welcome!
We sincerely welcome any inquiry and request !