Henan open valve co., LTD., a high school pressure valve and special valve manufacturing enterprise, has nearly 60 years of valve production history, the company is located in the historical and cultural city - the ancient capital of seven dynasties kaifeng. Convenient transportation, railway, highway, half an hour to zhengzhou international airport and zheng dong high-speed railway station.

Henan open valve co., LTD. Has strong technical strength and rich valve production experience. The company has an old, middle and young integrated excellent technical team, not only domestic well-known valve experts, valve materials experts as the technical leaders of various departments, but also a number of youthful, positive young talent. Through their active and diligent work, the company has developed a batch of special valves and special valves with novel structure and reliable safety under the premise of maintaining the traditional characteristic products of high temperature and high pressure valves, which have been well received by domestic and foreign users.

Henan open valve co., LTD. Main products include: gate valve, globe valve, check valve, ball valve, butterfly valve, safety valve, regulating valve, pumping check valve, hydraulic test valve, high valve and more than 3000 specifications. The company's valves are widely used in power, petroleum, petrochemical, metallurgy, coal, coal chemical, water supply and drainage fields. The company can design, manufacture and test valve products according to GB, API, ANSI, BS, DIN, JIS and other standards and user requirements to meet user requirements. Valve products: traditional way, manual, gear transmission, electric, pneumatic, and so on. Valve material: carbon steel, alloy steel, heat resistant steel, low temperature steel, stainless steel, duplex stainless steel, platinum base alloy, titanium alloy, etc.

The company has more than 130 directly used in the production of equipment, mainly testing equipment direct reading spectrograph analyzer, ultrasonic flaw detector, pressure testing machine, mechanical performance testing machine and chemical composition analyzer.