The pressure rating indicated on the valve body
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Is the pressure rating indicated on the valve body the design pressure or the maximum operating pressure? Are there any standards to guide this? Please ask an expert to answer, thank you! !
It is the nominal pressure; the maximum operating pressure must not exceed the nominal pressure.
The design pressure is indicated on the valve body; it must not be exceeded in actual use.
It is generally the nominal pressure; the maximum pressure must not exceed the nominal pressure indicated on the valve body
It’s also called rated pressure; now you understand the concept of rating, right?
The pipeline pressure must not exceed the pressure rating indicated on the valve body.
Which one is the nominal pressure of the valve, also known as the design pressure? Generally, the design pressure is 1.3–1.5 times the actual maximum operating pressure. . . The concept still needs to be understood clearly
The casting pressure of the valve body is the nominal pressure, which is merely a theoretical value.
You can take a look at GB/T12220-2015; it contains detailed explanations. The valve body is at engineering pressure