Gasket selection issue
Thread Content
The internal pressure of the device is -0.1 MPa, while that of the jacket is -0.3 MPa. The design temperature for both the inner cylinder and the jacket is 280 degrees. There is one pipe port on the inner cylinder, equipped with a flange cover; what type of gasket should be used between the flange and the flange cover?
Are you kidding? Jacket -0.3? The selection of gaskets depends not only on pressure and temperature but also on the properties of the medium; a graphite wound gasket is a good choice, as it can be used in most situations.
Agree with the second floor – the choice of gaskets is not only determined by pressure and temperature but also by the properties of the medium; wound gaskets with inner and outer rings should be used
Yes, the choice also depends on the properties of the medium. But generally, winding gaskets will work fine
Selection is based on the medium, temperature, and type of flange sealing surface; graphite wound gaskets are generally used at 280 degrees.
Why is it necessary to use wound gaskets? The medium and the flange sealing surfaces have not been determined; the temperature is only 280 degrees. Gaskets made of other materials can also be considered for use.
There are many gaskets made with graphite wound packing; they can withstand high pressure and are also resistant to corrosion.
Wrapped gaskets can be used due to the high temperatures, but the choice of gaskets also takes into account the properties of the medium. Initially, the equipment imported by our factory from the United States used wrapped gaskets, but later, based on the actual conditions of production, these were gradually replaced by PTFE gaskets. This is because once a wrapped gasket leaks, it cannot be repaired. Therefore, it is recommended that you consider using other types of gaskets depending on the corrosive properties of the medium.
Agree with what was said above: The choice depends on the medium, temperature, and type of flange sealing surface; for 280 degrees, graphite wound gaskets are generally used. Because graphite wound gaskets are commonly used for ordinary media and are relatively economical.
All pipe flanges are rated at 0.6 MPa, while all wound gaskets have a rating of over 1.6 MPa. Can they be used together?