DIN Check valve are used in various industries such as petroleum, water, steam industry etc under nominal pressure of PN1.6~PN4.0Mpa and working temperature of -20~450 degrees.
Check valve can stop fluid from backflow. The disc opens by the pressure of the fluid and the fluid flows from access to exit. When the accessis lower than the exit, by pressure differential and gravit, disc will shut automatically to stop the backflow.
Vertical check valve and globe valve has similar structures. The disc does vertical movements around the certerline. Its movement is reliable. Check valve usually applys to horizontal pipline only.
Features:
1. This product has logical structure, reliable seal, excellent performance and nice design.
2. The stem srface is build-upwelding with Co hard alloy, which is attrition-resistant, corrosion resistant has god friction resistant and long life.
3. The part material, flange and butt weld and dimension may be selected accordng to current operating condition and users' requirement, so that meeting the requrements of various engineering.
Zhejiang def valve Co., Ltd. has been a member of China valve association and the network member of China petroleum & natural gas corp. For more than 20 years in manufacturing valves. Our company has a perfect quality management system certified by international certificates successively. Yongjia def valve Co., Ltd. imports the most advanced and specialized equipment from Japan. Meanwhile, our company cooperates with the valve institutes in Beijing of China, continuously adapts new techniques, new materials and new technology, and develops new products.
China yongjia def valve Co., Ltd. has acquired several patents in the valve industry, such as pressure balanced plug valve which meets national new technical patent. Our company has been awarded creative fund supported by technology department of China.
Over 90% of our products are exported to foreign countries and our annual output is more than 950 tons. Our markets are covering north America, Europe and the MID east, such as the u. S. A, the u. K., Italy, Australia, Indonesia, Kuwait, Czech, the Netherlands, and Spain. Due to the stringent quality control, excellent service and good reputation, our company has been known in worldwide.
