Nominal pressure

Nominal pressure refers to the standard (equipment/pipeline) grade, which is a fixed value such as 6 KPa, 1.0 MPa, 1.6 MPa, etc. Operating pressure is the actual pressure under which the system operates; the design pressure is generally higher than the operating pressure to ensure the safe operation of the system.

My wealth just won’t increase no matter what. There are many useful materials I want to download, but I don’t have enough money for that :'( I’m a newcomer too, without the means to post topics; I want to learn, but I can’t afford it. It’s so frustrating

Original poster, the definition and selection of nominal pressure are as follows: once you have determined the operating pressure and design pressure, you need to choose a certain pressure rating. PN: A designation consisting of letters and numbers used as a reference, related to the mechanical properties and dimensional characteristics of pipeline system components. It consists of the letters PN followed by a dimensionless number. Note 1: The numbers following the letter PN do not represent measurement values and should not be used for calculation purposes, unless otherwise specified in the relevant standards. Note 2: The term PN has no meaning unless it is related to the standards for relevant pipe fittings. Note 3: The allowable pressure for a pipe fitting depends on its PN value, material, design, and allowable operating temperature; this allowable pressure is specified in the pressure and temperature class tables of the corresponding standards. Note 4: All pipe fittings with the same PN and DN values, along with their matching flanges, must have the same fit dimensions. 3 For the PN series, the PN value should be selected from the following series: DIN series, ANSI series – PN 2.5, PN 6, PN 10, PN 16, PN 20, PN 25, PN 40, PN 50, PN 63, PN 100, PN 110, PN 150, PN 260, PN 420. Note: Other PN values may be used if necessary.

Go to the Forum Wealth Center to claim the red envelope: [Red envelope name] Newbie Red Envelope – Upgrade to Level 2 after 7 days of registration. You can also go to the forum usage tutorial section to learn how to use the forum, etc. Participate actively in forum activities, help others, utilize your strengths, and engage in more communication – you will reap rewards for it!

Working pressure: The pressure at which the operating medium is under stress； Design pressure: The design pressure of the pipeline is determined based on the highest operating pressure of the medium together with temperature conditions, and it must be greater than or equal to the highest operating pressure ； Nominal pressure: The rounded pressure grade specified by standard codes, used to select valve fittings and other piping materials, and it is greater than or equal to the design pressure.

The definition and selection of nominal pressure are as follows: once you have determined the operating pressure and design pressure, you need to choose a certain pressure rating

Got it, thanks:victory:

Nominal pressure >= Design pressure > Operating pressure.

The nominal pressure is there to facilitate your selection; it’s essentially a standard

You can ask more questions! :lol

Well, speak up actively and ask questions actively. Hehe, SQ.

Nominal pressure is the pressure value that facilitates selection in standards, manuals, and specifications. The design pressure is the pressure rounded based on the maximum operating pressure, taking safety into account, and subjected to testing.