Installation of Corrosion Coupon on bottom of pipe as opposed to top?
Installation of Corrosion Coupon on bottom of pipe as opposed to top?
(OP)
On a recent project our Middle East Client requested corrosion coupons be placed at the 6 o'clock position as opposed to the 12 o'clock position on the pipe. There are several problems this has created.
1) Pipe is large diameter 36", 30", 16" and 4" but all pipe is buried 1 meter to TOP and a Valve Pit is required to maintenance these.
2) We are talking hazardous chemicals H2S etc. being able to sink into this space not to mention any spills that might occur.
3) Construction headaches for the contractor in having to build 15 feet deep valve pits and maintenance headaches.
Nonetheless it is what client want's. Has anyone had experience with this type of install?
Dumbfounded in Bakersfield, CA
bgeyedog
1) Pipe is large diameter 36", 30", 16" and 4" but all pipe is buried 1 meter to TOP and a Valve Pit is required to maintenance these.
2) We are talking hazardous chemicals H2S etc. being able to sink into this space not to mention any spills that might occur.
3) Construction headaches for the contractor in having to build 15 feet deep valve pits and maintenance headaches.
Nonetheless it is what client want's. Has anyone had experience with this type of install?
Dumbfounded in Bakersfield, CA
bgeyedog





RE: Installation of Corrosion Coupon on bottom of pipe as opposed to top?
Yes, the fittings and pits will be an HSE risk in H2S service but that is for the operator to manage.
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04