What are some common causes of control valve noise?
Submitted by: AdministratorIf you have excessive pressure drop across the control valve and the downstream pressure is low enough to cause the liquid to flash, a great deal of noise in the control valve can result. Excessive damage can be done as well. This is a common problem at low flows. Review the design information on the valve and the process to see if low flow may be the problem. If the valve is incorrectly sized the noise will be apparent from the day of installation. If flows have recently been changed, the valve may have been designed correctly at the time, but is too large for current operation.
Submitted by: Administrator
Submitted by: Administrator
Read Online Chemical Engineering Job Interview Questions And Answers
Top Chemical Engineering Questions
| ☺ | What is a good estimate for the absolute roughness for epoxy lined carbon steel pipe? |
| ☺ | For a heat exchanger, will the overall heat transfer coefficient increase along with an increase in LMTD (log mean temperature difference) around the unit? |
| ☺ | What is the method of determining maximum differential pressure during hydro testing of shell and tube heat exchangers? |
| ☺ | What is a "saltation velocity" and how is it used in designing pneumatic conveying systems? |
| ☺ | Why is post-weld heat treatment (stress relieving) sometimes necessary for welded vessels? |
Top Best Engineering Categories
| ☺ | Mechanical Engineering Interview Questions. |
| ☺ | Civil Engineering Interview Questions. |
| ☺ | Chemical Engineering Interview Questions. |
| ☺ | Electrical Engineering Interview Questions. |
| ☺ | Automobile Engineering Interview Questions. |
