The pipe specification is indicated as DN80, PN1.0MPA; there is no information regarding temperature. How can we determine whether it can be used?
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The pipe specifications are given as DN80 PN1.0MPA; there is no information regarding temperature. How can we determine whether it can be used? Do you need some temperature information when specifying pipes?
The pipe grade is determined by both temperature and pressure; once you know the pipe grade, the maximum temperature and pressure limits for that pipe are established, and the operating conditions must not exceed the requirements of that grade.
The temperature information is determined based on the material chosen…
On a pipeline of a specified grade, the temperature is fixed, and the material is also determined based on the pipeline grade. :hug::hug::hug:
The 1.0 MPa here refers to normal temperature conditions; as the temperature rises, it becomes impossible to withstand 1.0 MPa, and there is a corresponding relationship between temperature and pressure. Except for those meeting US standards
The pressure rating is determined using the temperature-pressure criterion; when setting the pressure, temperature must be taken into account! Also, according to current standards, the pressure rating is now expressed in kilograms instead of MPa...:L