● The dual-plate wafer check valve consists of a valve body, discs, shaft, and springs, featuring a wafer-style connection for a compact structure.
● The butterfly plates are two semicircles, using spring-forced resetting. The sealing surfaces can be made from wear-resistant material welded onto the body or lined with rubber, offering a wide range of applications and reliable sealing.
● The closing stroke of the valve disc is short, and it is spring-loaded for quick closure, which can significantly reduce water hammer phenomena.
● Suitable for installations in spaces with limited access; it can be used in both horizontal and vertical pipelines and is easy to install.
● Applicable for various mediums including water, steam, oil products, nitric acid, acetic acid, and strong oxidizing agents.
● The product features a small size, light weight, sensitive action, reliable sealing, easy installation, and a long service life.
◎ Design Standard: API 6D, ASME B16.34, GB/T 12236
◎ Pressure Temperature Rate: ASME B16.34, GB/T 12224
◎ Face to Face: ASME B16.10, GB/T 12221, EN558
◎ Flange Standard: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79, HG/T 20592, EN 1092, GOST 33259
◎ Fire Safe: API 607
◎ Pressure Test: API 598, API 6D, GB/T 13927, JB/T 9092, GOST 9544
Material: Carbon Steel, Stainless Steel, Alloy Steel
Nominal Size: NPS 2"~ 64", DN 50~1600
Pressure Rate: Class 150~2500, PN 10~420
Temperature Range: -46°C~+200°C
Application range: Suitable for pipelines in various working conditions such as petroleum, chemical, pharmaceutical, fertilizer, power industry, and low temperature.
Y-Type Check Valveis a type of valve used to prevent fluid backflow, named after its Y-shaped valve body. It allows fluid to flow in one direction, and when the fluid flows in the opposite direction, the valve automatically closes to prevent backflow.
The C-type wear-resistant ball valve is a valve designed specifically for harsh working conditions, characterized by its eccentric ball setting and "C" - shaped channel. This design cleverly utilizes the translational characteristics of the sphere during rotation, achieving a "wedging" effect with the valve seat, thereby significantly improving the sealing performance. In addition, its ingenious upper and lower support axis positioning structure not only ensures the stability of the sphere, but also avoids tilting, allowing the medium thrust to be evenly dispersed, thereby extending its service life. This design not only optimizes the sealing performance, but also reduces the opening and closing torque and improves the opening and closing efficiency. Widely used in industries such as coal chemical, petrochemical, offshore platforms, LNG, etc.
The slow-closing check valve opens and closes the valve disc automatically due to the flow of the medium, and is a type of automatic valve used to prevent the backflow of the medium. It is mainly used to prevent backflow of the medium, prevent the reverse rotation of pumps and drive electric motors, and release the medium in containers. The check valve can also be used in pipelines that supply supplementary pressure to auxiliary systems where the pressure may rise above the system pressure.