Re: [MW:28345] testing of inaccessible welded joints

Borodcope you can identify internal defect. otherwise pressure test

On Mon, 24 Sep 2018, 13:01 Ali Asghari, <asgharialigl@gmail.com> wrote:

Thank you for responding but our line is long& we want to know about internal defects and visual in that situation doesn't have good sensitivity.

Actually, I am wondering about mechanised ultrasonic that syncronised with crawler.

If you know any equipment or company that have simillar technology.

Regards.

On Mon, Sep 24, 2018, 8:37 AM sandeep kumar <sandeepdhiman63@gmail.com> wrote:

for smaller length, a surface inspection with boroscope can be possibly made. Now a days boroscope with robot manipulator (pipe crawler) also available which can be remotely controlled although a costly matter.

https://www.ryonic.io/products/pipeline-inspection-crawlers/

The above system can be used upto 500 mm however diameter restriction is applicable.

http://aitproducts.com/borescope-pipe-camera-rentals/pipe-camera-rental/pipeline-inspection-camera.html

Shared more details about the joint types, pipe dia length etc would be better for the understanding.

Thanks & regards

Sandeep Kumar

On Sunday, September 23, 2018 at 3:17:28 PM UTC+3, Ali Asghari wrote:

Dear Kumar.

this line is piggable but I don't think the pig with considering pf it's velocity don't have ability to scan welds?if you know information or experience, please let me know.

pressure testing can only detect defects that cause leak or rupture, and other rejected defects can be undetected.

Regards.

On Sun, Sep 23, 2018 at 1:32 PM Lakshmankumar Bayyana <lakshma...@gmail.com> wrote:

If it is a pipe line, best option is to do hydro test with 1.25 times of the working pressure to ensure the integrity 

Also can go with ultrasonic pig in case of pig possible lines

Thanks and Regards 

Lakshman kumar. B 

+91 9440031459

Sent from my iPhone

On 23-Sep-2018, at 11:28 AM, Ali Asghari <asghar...@gmail.com> wrote:

Dear All.

Does anybody know there is NDT method that can inspected welded joints which are buried and not accessible?our concern is about finding of construction defects either surface and internal that have a good detect ability for linear ones particularly Transverse Crack.

Regards.

 

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