Slip on plate flanges and blind flanges are both flange types used in pipeline connections.
Plate flange, also known as flat welding flange or flat flange, is usually used as a fixed end on one side of the pipeline. They are composed of two flat circular metal plates, which are bolted together and have a sealing gasket located between the two flanges to ensure that there is no water or gas leakage at the pipeline connection. This type of flange is typically used in low-pressure or non critical applications.
Blind flange, also known as blind flange or blank flange, is usually used in pipeline systems where a certain diameter needs to be closed or blocked. It is the same as other flange types, with the same pressure rating and external dimensions, but its internal space is completely enclosed without holes. Blind flanges are usually used to block a certain diameter during maintenance and cleaning work in pipeline systems to prevent impurities and pollutants from entering the pipeline.
Although they are common pipeline connection devices, there are the following similarities and differences between them:
Similarities:
1. Material: Plate type flat welding flanges and blind flanges are made of the same material, such as carbon steel, stainless steel, etc.
2. Installation method: The installation methods of the two flanges are similar, and both require connecting them to pipelines or equipment and using bolts for connection.
Differences and similarities:
1. Appearance shape: The flat flange has a circular flat welding surface, while the blind flange is a flat surface covered on the pipeline.
2. Function: The function of plate type flat welding flange is to connect two sections of pipeline or equipment, while the function of blind flange is to close or block a section of pipeline to prevent liquid or gas flow.
3. Usage scenario: The usage scenarios of the two types of flanges are also different. Plate type flat welding flanges are usually suitable for pipelines or equipment that require frequent disassembly and assembly, while blind flanges are usually used for pipelines or equipment that require temporary closure or blockage.
4. Installation method: Although the installation methods of the two flanges are similar, their usage scenarios and installation positions may also vary. For example, plate type flat welding flanges are typically used to connect both ends of a pipeline, while blind flanges are typically used to close a section of the pipeline.
5. Mark: When selecting, you can also view the marks of two types of flanges. Neck flat welding flange often have obvious screw hole layouts, while blind flange flanges usually do not have screw hole layouts.
In summary, although both flat welding flanges and blind flanges are pipeline connecting devices, their shapes, functions, and usage scenarios are different, so they need to be selected according to actual needs.
Post time: Apr-20-2023
