Spectacle blinds are different from ordinary blinds

Customers who have purchased flanges know the blind flange, but some rarely stop at the spectacle blind, and others have not even heard of it. Shanxi Haokun flanges Group Co., Ltd. has investigated our blind plate purchaser. Some European customers know the spectacle blind plate, but they can't distinguish the difference and purpose between spectacle blind plate and blind flange. The main function of spectacle blind plate is complete isolation, just like the function of a gate valve with reliable performance and will not be misoperated. General purpose: the system medium pipeline, such as steam purging pipeline and oil process medium pipeline, plays a stable isolation role. At this time, the spectacle blind plate shall be installed on the side close to the system medium pipeline. Of course, for the on-line disassembly of spectacle blinds, there should be a gate valve on the side close to the process medium pipeline. Such spectacle blinds are generally marked as normally closed Double gate valves shall be installed on the combustible or toxic medium pipes in and out of the device, and spectacle blinds shall be installed on the double gate valves. Such spectacle blinds are generally marked as normally open. It will be used when the device is internally opened. After normal startup, the pipeline that no longer passes through the medium shall be equipped with gate valve. The spectacle blind plate shall be installed on the side of the pipeline with normal five medium flow. The spectacle blind plate is generally marked as normally closed.Spectacle blinds are commonly used for pipeline flanges that need to change the process. The materials are mainly carbon steel, stainless steel and alloy, which can be selected according to the pipeline pressure grade and pipeline medium.