Re: [MW:6210] API 653 Tank Repair

Dear all,
thanks for your reply.

these are defects identified by inspection team.

1. Fixed Roof - Remove the weld defects from the roof to shell angle and repair

2. Fixed Roof - Remove the weld defect from the butt weld adjoining Plates

3. Bottom - Puddle weld or install a lap-welded patch plate over the 0.150 inch deep internal pit on the sump bottom plate.

4. Bottom - Remove the corroded manual gauge repad/striker plate,


Regards,
Vijay.

On Fri, Jul 30, 2010 at 2:28 AM, ahmmad ali mohammed <ali47.alisha@gmail.com> wrote:

Dear Vijay

 

you are not given clear details about the location and type of repaire.

generally the following steps to be follow---

first thing is to ensure the type and depthe of defect by ndt methods as per site conditions.

if a repaire is crack

drill at the both ends of crack to prevent further propgation of crack  during grinding.

remove the defect by grinding only(gas cutting is not allowed).

after grinding ensure compleat removal of crack/slag etc by applying ndt methods

weld the cavity and apply final ndt (ut or rt) 

apply highly penetrating oil to ensure there is no leakage.

if necessary check the hardness value

 

i think this information may help you.

 

with regards

ahmmad ali 

 

 

On Sun, Jul 25, 2010 at 8:37 PM, Vijay <k.vijayaraj@gmail.com> wrote:

Dear All,

We are going to carry out Repair of Diesel Storage Tanks as per API
653 specification.

Since am new to API 653, kindly guide me what are the things to be
carried out for Repair.

What are key points and what measures to be taken before carrying our
the repair.

Thanks in Advance. Kindly feed your inputs.

Regards,
Vijay.

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