Flange gasket selection
Thread Content
With a design pressure of 1.1MPa, how to select a pipe box gasket? According to JB/T4718-92? But there are only two pipe specifications above, only 19x2 and 25x2.5. There is no 25x2 pipe. How to choose? Check according to HG20592-20635--97?
In addition to pressure, the selection of gaskets should also consider temperature and type of medium. The selection of pipe box gaskets is not directly related to the specifications of the pipes, right?
Inquire by HG20592-20635--97
If there are no special requirements, it can be selected according to JB/T4720-92, regardless of the heat exchange tube specifications.
Note that the selection of pipe box gaskets is not directly related to the specifications of the heat exchange tubes you mentioned! Suggestion: Pipe box flange gaskets, depending on the size, can be selected from JB/T 4704~4706-2000!
Since it is a pipe box gasket, the equipment gasket is selected according to JB/T4704~06, and later JB/T4718~20. It is related to the medium and temperature, and has nothing to do with the heat exchange tube. If there is none (not within the standard range), the gasket size can be designed according to the connecting flange gasket.
In addition to pressure, the selection of gaskets should also consider temperature and the properties of the medium. The selection of pipe box gaskets is not directly related to the specifications of the pipes. It can be selected in JB/T 4704~4706-2000.
The specifications of the heat exchange tubes do not have to be selected according to the specifications listed in 151. The gaskets can be selected from the JB or HG standards according to the size of the tube box. If the non-standard flange can be selected according to the design conditions and medium characteristics listed in the 150 flange calculation section, the specifications will be determined according to the structure. This post was last posted by email_Edited by cao at 2009-4-5 08:23 ]
With such a low pressure, just choose according to the standard.
The size of the pipe is related to the size of the spacer of the gasket and has nothing to do with the size of the gasket.
Does the choice of gasket have anything to do with the diameter of the pipe? It cannot be selected as a standard and can be made into a non-standard one.