Öncelikle Küçükinç'in detaylı anlattığını biliyorum arkadaşım. İngilizce bilgim yetersiz olduğu için çeviri yaparak yazdığım için tüm sorularımı çok basit bir şekilde anlattım. Kontrol vanaları hakkında zaten bilgim var. Deşarj basıncı ne demek emin olmak için sormak istedim.
Diğer cevapların...
Whatever the customer wants to control, he will set up a system accordingly, but he will do it himself. this is how I understood it. I try to ask questions from the simplest because even if I know the subject, I don't want to miss anything. thank you for your help.
a single stage, cavitation controlled, flow control valve with 8” balanced trim.
I am not sure if the calculation is correct or not, but the Fisher catalogs show more or less similar values. As the valve gets bigger, the force required will naturally increase, but at what rate will I increase...
I am just a control valve designer and analyst. the customer ordered it as a pcv. i wondered if i should add something other than a regulator and positioner. i will only design and manufacture the control valve. the customer will think for himself what he needs to control pressure, flow...
https://www.processingmagazine.com/valves-actuators/article/15584319/size-control-valve-actuators-to-overcome-the-force
https://www.processingmagazine.com/valves-actuators/article/15584319/size-control-valve-actuators-to-overcome-the-force
I made it according to the calculation on this site...
Thank you for your answer.
there is a regulator and positioner in the flow control valve. is there a device other than these in the pressure control valve? what do they adjust the pressure according to? for example, I want to close the valve when the pressure drops to 20 bar. how do I do it?
Hello Friends;
How can I calculate the force that the flow control valve will produce? At the same time, how can I determine the actuator I need to put on it? For example, there is 14500 N valve force, how can I determine the dimensions of the actuator's casings? How can I calculate the...
Hello friends;
I wanted to investigate the difference between these two valves, but I couldn't find any clear information. is something added on top of a normal control valve? can you inform me about this?
Arkadaşım merhaba;
Ben metalurji ve malzeme mühendisiyim. Aldığım termodinamik dersi biraz daha metalurji üzerine olsa da bu dersleri aldım. Lisede çok sayıda kimya dersi aldım. Entalpinin ve entropinin ne olduğunu çok iyi biliyorum. Sadece valf üzerinde nasıl yorumlanacağını sordum. Resimdeki...
Which book did you quote? Can you share it with me? I don't fully understand this graph. the graph looks complicated. how can I interpret the enthalpy?
Thank you all, friends.
“Our production efficiency is higher from droplets of condensed vapors rather than cavitation.”
There is a comment above that it can only be condensed vapor droplets. That's why I was worried.
thank you for your answer but how can I take precautions against this? if it always stays in gas then how can it be a flashing problem? How can I calculate the vapor pressure of a natural gas fluid at 50 C temperature and 55 bar pressure? Because this is how I can decide whether there is a...
Hello everyone.
Natural gas will pass through the control valve I designed at 50 C temperature and 55 bar pressure. In this case, I want to calculate whether there will be any cavitation in the valve. I know that natural gas will remain as gas under these conditions. I also know that cavitation...
First of all, the valve will move linearly (rising stem). I think what I need to take into account here is that the shear force resulting from the torque to be applied to the valve is smaller than the shear force of the material I use. I made calculations accordingly. While the shear strength of...
Consider a straight stainless steel rod with a diameter of 40 mm. i want to calculate whether its wall thickness is sufficient. how to calculate the minimum wall thickness of a solid stem?
I made the stem diameter of an 8” C600 control valve 40 mm. According to the flat heads calculation, the minimum wall thickness value is 7.4 mm with 1,5 mm corrosion allowance. I am not sure, should I also consider the act. torque when calculating the stem minimum wall thickness?
Hello.
I want to calculate the wall thickness for the lid of a pressurized vessel, but I am not sure if I am using the right formula. I used the UG-34 formula in ASME BPVC Div. 8. Do you have any suggestions?
How can I calculate the minimum wall thickness of the stem of a valve?
