Nominal pressure and operating pressure
Thread Content
If the nominal pressure of the equipment is 1.6 MPa or higher, must the design pressure be specified as 2.5 MPa? Can it be written as 1.6 MPa or more?
Flanges have nominal pressure; is this concept applicable to non-standard equipment?
A value of 1.6 MPa or higher can be used
Does the equipment have a nominal pressure? If the operating pressure is 1.6 MPa or higher, the design pressure can also be set at 1.8 MPa; otherwise, the design pressure of 2.5 MPa must be used.
Oh, okay, thanks for the advice. .
The original poster should note that the relationship between operating pressure (which is presumably what you mean by nominal pressure) and design pressure requires taking factors such as pressure, temperature, and the medium into consideration; it’s not sufficient to simply state that the design pressure is higher than the operating pressure – the extent of this difference matters.
So that’s how it’s understood :handshake
The so-called nominal pressure (nominal diameter) is generally used for selecting standard components, such as flanges, manholes, and pipes. For container design, if a company has established a systematic approach with corresponding nominal grades, these nominal values are used for selection purposes. From a design perspective alone, there is no such thing as a nominal pressure assignment for the design pressure of a container. . .
Nominal pressure? ? The relationship between work pressure and design pressure can be found on Baidu; each organization has its own regulations!
It can be written as 1.6 MPa or more. . . .
I think the questioner is asking whether, when selecting standard components with a nominal pressure such as pipe flanges, the design pressure should be higher than the nominal pressure; the answer is NO.