pine05
Chemical
- Oct 20, 2010
- 6
Hi
I want to ask, what is the criteria to say that a selected PSV is oversized ?
For instance, I have a calculated relief rate of 100%. When I calculate the orifice size I found that the orifice size is 1.877 in2 (larger than 1.838 in2 for K size but much lower than 2.853 in2 for L size)
If I choose the L type of orifice, it will make the rated flow rate 150% of calculated.
In this case, is it safe to have selection like that ? Or it can be considered as oversized PSV ? thus it may lead to chattering problem
Thanks
I want to ask, what is the criteria to say that a selected PSV is oversized ?
For instance, I have a calculated relief rate of 100%. When I calculate the orifice size I found that the orifice size is 1.877 in2 (larger than 1.838 in2 for K size but much lower than 2.853 in2 for L size)
If I choose the L type of orifice, it will make the rated flow rate 150% of calculated.
In this case, is it safe to have selection like that ? Or it can be considered as oversized PSV ? thus it may lead to chattering problem
Thanks