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Chlroine Pipe Tichkness

Chlroine Pipe Tichkness

Chlroine Pipe Tichkness

(OP)
We use chlorine to filter out impurities from aluminum and recently we were audited on our system.  The auditor stated we need to adopt a program to monitor wall thickness for the pipe.  I know chlorine will wear pipe walls at high velocity and with water.  Can anyone suggest where to measure at?  I am looking at 3x dia and 4 points along the circumference.  Is this too much?

Thanks...
rdeno

RE: Chlroine Pipe Tichkness

rdeno,

If this is erosive/corrosive service, I suggest determining which elbows of the system have the highest velocity and monitoring those.

I would only inspect (UT) the "downstream half" of the elbows for metal thickness.

EPRI, some years back, developed a piping inspection program for feedwater piping systems. Within that program were guidelines about selection of points for piping wall thickness verification.

Is this a stainless steel system ?

If so, is this 5S or 10S stainless piping ?


MJC  

RE: Chlroine Pipe Tichkness

(OP)
The pipe is 3/4" CS, SW.  The total length is approximately 500 feet long ranging to ground level to 50 feet above.  

How do you mean "down stream?"

Also, I am looking at a StressTel T-Mike EL datalogging as my ultrasonic thickness gauge.  Have you a personal experience with them or do you recommend another product?

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