The system will operate at around 900 kPa with maximum surge in the order of 1400 kPa. This is well below the 50% and 75% yield of the pipe. So yes, handling and installation factors are sometimes the driving factor. But even with these relative low pressures, the strain in the pipe still...
Hi LittleInch,
Yes the problem is rather specific as im not accustomed to work with cml lining (see my previous post). We usually limit surge pressures to within 75% of the pipeline yield. As cml is not very flexible I was wondering on the effect of surge pressures on the lining. But just...
The problem is that the liner has a very low tensile strength, in the order of 4 MPa. If an allowable pressure is used based on 50% yield of X42 steel (Young's modulus=207 GPa) I arrive at the following:
Pipe OD: 1524 mm
Pipe wall thickness: 9.5 mm
Allowable...
Good day,
Are there any articles available on the effect of surge pressures on cement mortar lined steel pipes? For instance, when a cml pipe is subjected to a positive surge event, the steel will undergo a certain strain, which, depending on the pressure can be higher than the allowable strain...
