Fbe coating

[Nishanth Km]

Dears ,

Is there any requirement that internal FBE coating to be done for weld joints before hydro testing?

Please reply .

Regards,

Nishanth km

[Mohamed Muneeb]

Yes it is an 100% mandatory after welding before hydro and fbe is as per the requirements of lineclass specification which can be only internal or both internal and external but externals can be done after hydro but internal should complete with random pipes and also Piping spools which has been welded, including bosses and direct attachments before hydro. 

This is normal practice inside and outside kingdom for saudi aramco projects. 

Check SAES H 201

Note: Before going for Fabrication of fbe, some spools cannot be internal coated because of feasibility, hence make sure you if you are fabricating spools with multiple elbows are any other strginet rolling we go with flange separator.

Check with the coating applicator for feasibility. 

Regards 

Muneeb 

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[Nishanth Km]

Dear sir,

In standards H 201 not mentioned about hydro test requirement.

Please tell where this requirement is mentioned.

Regards,

Nishanth km

[Pradeep kumar hormis]

Dear

I Think you can refer SAES-A-004 PARA 7.18 / SAES-L-150 PARA 5.13, For the clarification of the sequence of welding and Coating related to pressure test. 

Thanks & Regards

PRADEEPKUMAR HORMIS

Mob: +966-58 16 20 710

 

 

 

[Mohamed Muneeb]

Greetings,

you can refer also above trailing mail and also below 

SO as  H 201 says the procedure to be followed first you shall the check the contractor procedure approved by CSD and also the attached SAICs will be more useful for you.

SAES-H-201

Page 4 of 9

7.1.2 Application of FBE coating shall be strictly in accordance with the application procedure prepared by the contractor (Applicator) and approved in writing by the CSD prior to commencement of any coating work. FBE materials and method of application and equipment to be used shall be specified in this procedure.

7.1.3 For welds that require post weld heat treatment (PWHT), FBE coating over-the-ditch on both Internal and External welds shall be done after PWHT and welds accepted by responsible Inspector.

7.1.4 The maximum length of the FBE field application is strictly limited by the total length of the cutback plus a reasonable overlap to tie in with the initial FBE coating. The maximum total length of the coating on the girth weld shall be 11 inch (280 mm). Consult with the RSA if the length is extended due to adjacent coating damage.

7.1.5 Internal cleaning and FBE coating of line pipes with diameter from 10" to 20" shall be commenced by the fully remote controlled crawling machine fitted with 2 cameras to monitor the work.

7.1.6 A test spool shall be used to verify the correct functioning of the crawling machine during the work implementation. The length and diameter of the test spool shall be decided and agreed by the contractor, CSD and Saudi Aramco inspector before the work commences.

7.2 Surface Preparation

7.2.1 Prior to blast cleaning, all hydrocarbon contaminants within a 500 mm wide band centered over the weld shall be removed from the pipe by solvent cleaning per SSPC SP-1. Kerosene, diesel, or similar degreasers that leave an oily film shall not be used. Acceptable degreasers are Saudi Aramco solvents SAP# 1000186759 and SAP# 01000198575.

7.2.2 All weld joints including adjacent areas to be FBE coated either Internal or External shall be ground smooth and free from burrs, weld spatter, sharp edges. Weld toes shall be merged smoothly and rounded with no sharp undercuts. The

Muneeb 

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Thanks & Regards,

MOHAMED MUNEEB MAHABOOB

PID,

JAZAN-IGCC-001

M:         +966(0)59 607 2237

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