Dear Sudipto,
We have been uploaded CIP scheme for the  system .
1.	Total volume for three circulation loop is 9.105 KL, which split is as follows
A. first circulation loop-2.33 KL. B. second circulation loop-1.6 KL 3. Third circulation loop-5.175 KL.
2.	The same feed pump (PU-101/PU-101A) you can use for the CIP.
3.	Considering 70% effective capacity of the tank, we recommending  13 KL capacity tank for the CIP solution preparation.  
4.	As per our layout All axial flow pump elevation from ground is 2.2 meter, please check possibility of gravity flow to CIP tank during draining of all three loop . if gravity draining is  not possible  then one small intermediate tank you have to introduced near skid, where all loop will get drain by gravity one by one,  from intermediate tank liquid will  pump back to CIP tank or ETP, intermediate tank minimum capacity will be 6 KL as shown in scheme.
5.	 Time estimation is as follows,
Time required for solution preparation+ 2.5 hrs for filling all three loops.+ time required for circulation.+ time for draining and pumping (2.5 hrs approx)
6.	Please note that all CIP system piping and valves is scope of DRL, we will  only provide nozzles to equipments.
7.	Please review the scheme, and let know your concern if any, final CIP scheme, we will add in P&ID.
