Wall thickness of pressure guide tube
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I would like to ask: for superheated steam at 8.4 MPa and 480 degrees, what wall thickness should be chosen for the pressure guide tube in the pressure measurement circuit? Is 14x2 okay? Are there any guidelines in this regard?
It is recommended to use 14x3, high temperature and high pressure! You can view the latest automatic control installation drawings.
Reply to 2# Bryan66 Thanks! You are referring to the 2010 version, right? By the way, do you have the electronic version of the second volume?
We are using: outer diameter 14, wall thickness 5
Reply 4# liuei: Is it the same operating condition? 480 degrees, 8.4 MPa
Just to be safe, go with a 14x4 model and add a condenser tank in the middle to reduce the temperature~!
Measurement pipes for low pressure (PN≤6.3MPa) usually have specifications of Φ12X1.5, Φ14X2, Φ18X3, Φ22X3. Measurement pipes for medium pressure (PN≤16MPa) generally have specifications of Φ12X2, Φ14X3, Φ18X4, Φ22X4. Measurement pipes for high pressure (PN≤32MPa) typically have specifications of Φ14X4, Φ19X5
14x3 or Φ18X4 for high temperature and high pressure.
I’m not sure whether the poster used stainless steel or carbon steel pipes; if it’s stainless steel, a 18*5 size is recommended, while for carbon steel pipes, a wall thickness of 3 should be sufficient.
Why are 3 enough for carbon steel?
Same question. . . . The answer above.