Marking and flange
2014-12-25 16:33:01 Comment:0 Hits：
Flanges shall be according to the nominal diameter, nominal pressure, sealing code form surface, with the steel pipe series code (with metric tube codenamed "series 2", with standard pipe does not mark) and the standard number of markers.
Mark example: nominal diameter 80mm, nominal pressure 4.0MPa (25bar) welding steel pipe flange convex face (with metric tube)
Flange DN80-PN40 M (Series 2) GB/T9115.2-2000
Nominal diameter 100mm, nominal pressure 5.0MPa (25bar) of the raised face neck flat welding steel pipe flanges (with standard pipe)
DN100-PN50 RF GB/T9116.1-2000 flange
A discoid flange parts, the most common in the pipeline, flanges are used in pairs.
In the pipeline project, mainly used for pipeline flange connection. The need to connect the pipe, flange mounted with a low pressure pipeline, can use the wire connected flange, the use of more than 4 kilograms of pressure welding flanges. Between the two flange and a seal point, and then tighten the bolts at different pressure flange having different the thickness and the use of different bolt. Pump and valve, connection and pipe, these equipment locally, also made the corresponding flange shape, also known as the flange connection.
Usually there are two planes in the peripheral using bolt connection at the same time the closed connecting parts, generally referred to as "flange", such as ventilation pipeline connection, the parts can be called "flange parts." but this connection is only a partial of a device, such as a connecting flange and a water pump, is not good to called "pump flange type parts". Relatively small such as valves and so on, can be called "flange parts".
Mark example: nominal diameter 80mm, nominal pressure 4.0MPa (25bar) welding steel pipe flange convex face (with metric tube)
Flange DN80-PN40 M (Series 2) GB/T9115.2-2000
Nominal diameter 100mm, nominal pressure 5.0MPa (25bar) of the raised face neck flat welding steel pipe flanges (with standard pipe)
DN100-PN50 RF GB/T9116.1-2000 flange
A discoid flange parts, the most common in the pipeline, flanges are used in pairs.
In the pipeline project, mainly used for pipeline flange connection. The need to connect the pipe, flange mounted with a low pressure pipeline, can use the wire connected flange, the use of more than 4 kilograms of pressure welding flanges. Between the two flange and a seal point, and then tighten the bolts at different pressure flange having different the thickness and the use of different bolt. Pump and valve, connection and pipe, these equipment locally, also made the corresponding flange shape, also known as the flange connection.
Usually there are two planes in the peripheral using bolt connection at the same time the closed connecting parts, generally referred to as "flange", such as ventilation pipeline connection, the parts can be called "flange parts." but this connection is only a partial of a device, such as a connecting flange and a water pump, is not good to called "pump flange type parts". Relatively small such as valves and so on, can be called "flange parts".
previous page：First page
next pageClassification and application of flange