 |
| Quantity: | |
|---|---|
The Threaded Flange type is the same as a normal flange, sealed with two flange sealing faces.
Facing Types of Threaded Flange
There are two facing types for threaded flange, raised face flange and ring joint flange.
Raised Face Threaded Flange
When the gasket surface area is above the bolted line of the flange, the Raised Face Threaded Flange is easily identified. It is compatible with a wide range of gaskets, from flat to semi-metallic and metallic types, either ring or full.
The main scope of a Raised Face Threaded Flange design is to concentrate the pressure of the two mating flanges on a small surface and increase the strength of the seal.
The height of the raised face surface depends on the flange pressure level, for example, for pressure classes 150 and 300, the height is 1.6 mm or 1/12 inch, and for the 400 to 2500 level, the raised face height is about 6.4 mm, or 1/4 inch.
Some precautions when connecting threaded flanges:
1. The flange connection should be maintained on the same axis, the center deviation of the bolt hole should not exceed 5% of the aperture, and the bolt should be freely perforated. The connection bolts of the flange should have the same specifications, the installation direction should be the same, and the bolts should be tightened symmetrically and evenly.
2. Oblique washers of different thicknesses should not be used to make up for the non-parallelism of the flange. Do not use double washers. When the large diameter washer needs to be spliced, it should not be connected with the flat port, but should be in the form of a diagonal lap or maze.
3. In order to facilitate the installation and disassembly of the flange, the fastening bolts and flange face shall not be less than 200mm.
4. When tightening the bolt, it should be symmetrical and intersecting to ensure the uniform force of the washer.
The Threaded Flange type is the same as a normal flange, sealed with two flange sealing faces.
Facing Types of Threaded Flange
There are two facing types for threaded flange, raised face flange and ring joint flange.
Raised Face Threaded Flange
When the gasket surface area is above the bolted line of the flange, the Raised Face Threaded Flange is easily identified. It is compatible with a wide range of gaskets, from flat to semi-metallic and metallic types, either ring or full.
The main scope of a Raised Face Threaded Flange design is to concentrate the pressure of the two mating flanges on a small surface and increase the strength of the seal.
The height of the raised face surface depends on the flange pressure level, for example, for pressure classes 150 and 300, the height is 1.6 mm or 1/12 inch, and for the 400 to 2500 level, the raised face height is about 6.4 mm, or 1/4 inch.
Some precautions when connecting threaded flanges:
1. The flange connection should be maintained on the same axis, the center deviation of the bolt hole should not exceed 5% of the aperture, and the bolt should be freely perforated. The connection bolts of the flange should have the same specifications, the installation direction should be the same, and the bolts should be tightened symmetrically and evenly.
2. Oblique washers of different thicknesses should not be used to make up for the non-parallelism of the flange. Do not use double washers. When the large diameter washer needs to be spliced, it should not be connected with the flat port, but should be in the form of a diagonal lap or maze.
3. In order to facilitate the installation and disassembly of the flange, the fastening bolts and flange face shall not be less than 200mm.
4. When tightening the bolt, it should be symmetrical and intersecting to ensure the uniform force of the washer.