Product Information

Flange check valve is a kind of automatic valve, also known as check valve, check valve or backflow valve, its main function is to block the medium backflow. This valve relies on the media pressure to open or close by itself, to ensure that the medium can only flow in one direction, to prevent the media backflow. The flange check valve is made of high quality materials in accordance with domestic and foreign standards. The sealing pair is advanced and reasonable, and the sealing surface of valve flap and valve seat is made of iron-based alloy or Stellite cobalt-based hard alloy, which has the performance of wear-resistant, high temperature-resistant, corrosion-resistant, and anti-abrasion-resistant, and thus has a long service life. In addition, flange check valve can be manufactured according to various piping flange standards and flange sealing type to meet various engineering needs and user requirements. Valve body material varieties, gaskets can be reasonably selected according to the actual working conditions or user requirements, applicable to a variety of pressures, temperatures and media conditions. The design and manufacture of flange check valves can be carried out according to the specific requirements of users, providing different structural forms and connection forms, for a variety of equipment supporting the use.

Product Advantage

1, Compact structure: compared with the traditional flange check valve, the structure length of the imported flange vertical check valve is only 1/4 ~ 1/8 of the traditional flange check valve, the weight is only 1/4 ~ 1/20 of the traditional flange check valve, which makes it more compact in the installation and layout, which is conducive to reducing the overall weight of the piping system, and at the same time, reduce the labour intensity of installation and maintenance. .
2, Full-featured: the valve flap closes quickly, water hammer pressure is small, the flow path is smooth, fluid resistance is small, agile action, good sealing performance, high temperature and high pressure resistance, can adapt to high temperature and high pressure fluid environment, has a high degree of safety performance.
3, Convenient installation and maintenance: it can be installed horizontally or vertically in the pipeline, with strong adaptability and easy to arrange. Convenient maintenance: simple structure, easy to disassemble and repair.
4, Applicable to a wide range of media: applicable to water, steam, oil, nitric acid, acetic acid, strong oxidative media and other media, through the selection of different materials, can be adapted to the corrosive requirements of different media.
5,  A wide range of applications: widely used in petrochemical, metallurgy, electric power, light industry, food and other fields in the piping system, especially in the need for precise control of fluid flow occasions, its performance advantages are particularly prominent.