2 replies to this topic

[farid.k]

hye,

 

how to specify mesh size for the strainer? the fluid is steam, strainer is upstream of control valve. i don't really know why do we need to have strainer at upstream of control (existing system) valve and how to specify it.

your sharing is highly appreciated.

[breizh]

Farid,

 

This is to prevent rust to block the cage of the valve . Probably Spirax sarco website should provide the answer or Check with your E&I engineer or valve manufacturer.

 

http://www.filter.ee...s/230-21742.pdf

 

Hope this helps

Breizh

Edited by breizh, 12 November 2014 - 06:18 PM.

[samayaraj]

Hi farid,

For strainers, generally it should have the mesh opening area which is more than 4 times the cross section of pipe. This is generally used to avoid frequent chocking of strainer. In few cases, it is 2 times the CSA of pipe.

From this, you can choose mesh size. Here the avg dirt particles should be greater than the mesh opening size.

#Samayaraj