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Regarding the traffic issue, I would appreciate some advice from those who are more experienced

2009-04-15View Original

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There is a ball valve with a diameter of 1 inch; the operating temperature is 500°C, the working pressure is 27 MPa, and the medium is water. Is it possible to calculate the flow rate? Thank you.
Reply #22009-04-16
This can be calculated only by providing the pressure difference before and after the ball valve
Reply #32009-04-16
What’s the use of calculating flow rate? You don’t know that the pressure difference before and after the valve cannot be calculated.
Reply #42009-04-16
A pressure difference is required; both temperature and pressure are very high, so conventional experience regarding flow rates cannot be applied.
Reply #52009-04-27
A pipe with a diameter of 1 inch, operating at 27 MPa and at 500°C – that’s too high. Where would one use such pipes?
Reply #62009-04-27
The pressure difference is the driving force for the flow of the medium; by the way, is it a sealed water pipeline?
Reply #72009-04-28
The pressure is high enough; won’t it cause the pipes to burst?
Reply #82009-04-28
I think to calculate flow rate, it’s not enough to just know the pressure difference; one should also be aware of the pressure drop over a certain length, or the hydraulic gradient
Reply #92009-04-28
Your requirements aren’t sufficient; it’s hard to figure out how to proceed, it’s a bit tricky
Reply #102009-04-28
1-inch ball valve. The pressure at 27 – experts, I’ve never seen such a situation; usually we increase the pipe diameter.
Reply #112009-04-29
Is there something wrong with the claim about the 11th floor? For pipes with the same wall thickness, the smaller the diameter, the greater the pressure-bearing capacity, right?

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