Hydrotest-API 650

[DHANASEKARAN SUBRAMANIAM]

Gents,

After the completion of a tank hydro test, some temporary attachment welding has been made on the shell and roof plates.

What action needs to be taken at this stage, kindly provide the action plan with code references.

 

 

Your Immediate response is highly appreciated.

 

 

--

WITH REGARDS,
DHANASEKARAN .S ,

Mob.no: +96893220429.

[SOHAIB GHNAIMAT]

Re-Hydro test should be done.

 

Regards,

 

Sohaib

---

From: DHANASEKARAN SUBRAMANIAM <subramaniamd...@gmail.com>
To: material...@googlegroups.com
Sent: Sun, May 1, 2011 8:40:39 AM
Subject: [MW:10902] Hydrotest-API 650

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[ro...@labuanship.com]

Dhana,

You need to redo the HT if the welding of temporary support attached to pressure part, refer to your tank construction code. Thanks

Regards
RM

Sent by Maxis from my BlackBerry® smartphone

---

From: SOHAIB GHNAIMAT <sohaib...@yahoo.com>

Sender: material...@googlegroups.com

Date: Sun, 1 May 2011 10:16:21 -0700 (PDT)

To: <material...@googlegroups.com>

ReplyTo: material...@googlegroups.com

Subject: Re: [MW:10909] Hydrotest-API 650

[Antonio Bustios]

Dear Sir,

Please refer to API 650 7.3.6 Hydrostatic Test Requirements.
Verbatim: " ...After completion of the hydro-test, only non-structural small attachments may be welded to the tank in accordance with 7.2.1.11."

No issues with welding on the roof and make sure you are not welding on the shell/bottom critical area.
Then, no need to hydro-test again.

Regards and good luck,

Antonio.

---

Date: Sun, 1 May 2011 11:40:39 +0400

Subject: [MW:10902] Hydrotest-API 650

From: subramaniamd...@gmail.com
To: material...@googlegroups.com

[si...@lntkuwait.com]

what type of temporary attachment, you are mentioning.  Could you tell in detail, because for insulation chips welding after hydrotest is acceptable.

 

With regards,

S. Sivasubramanian 

 

-------- Original Message --------
Subject: Re: [MW:10909] Hydrotest-API 650
From: SOHAIB GHNAIMAT <sohaib...@yahoo.com>
Date: Sun, May 01, 2011 10:16 am
To: material...@googlegroups.com

Re-Hydro test should be done.

 

Regards,

 

Sohaib

---

From: DHANASEKARAN SUBRAMANIAM <subramaniamd...@gmail.com>
To: material...@googlegroups.com
Sent: Sun, May 1, 2011 8:40:39 AM

Subject: [MW:10902] Hydrotest-API 650

Gents,

After the completion of a tank hydro test, some temporary attachment welding has been made on the shell and roof plates.

What action needs to be taken at this stage, kindly provide the action plan with code references.

 

 

Your Immediate response is highly appreciated.

 

 

--

WITH REGARDS,
DHANASEKARAN .S ,

Mob.no: +96893220429.

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

[Nachhattar Singh]

Dear all

 

I would like to ask all if anyone has the procedure and information for Coding ( marking )  the Pressure vessels as per ASME Section VIII Div 2, the codes required are “ N” , “S”  and “ PP”

 

Thanks and regards

 

Nachhattar Singh,

Director

Tel: +91 98201 81158 / +91 22 27580036

Email: nsi...@librainspection.com

             in...@librainspection.com

407/408, Vindhya Commercial Complex,

Sector 11, CBD Belapur

Navi Mumbai - 400 614

Maharashtra, India.

www.librainspection.com

 

PLEASE THINK BEFORE PRINTING

[Jorge Mejía Lema]

Please read the following para gphs API 650 , Eleven Edition:

7.2.1.11

Non-structural small attachments such as insulation clips, studs and pins but not insulation support rings or bars may

be welded by the arc stud, capacitor discharge or shielded metal arc process to the exterior of the shell including reinforcing plates

or PWHT assemblies and roof either before or after hydrostatic testing is performed, but before the tank will be filled with product

provided:

a. The attachment locations meet the spacing requirements of 5.8.1.2a.

b. The arc stud welding process is limited to 10 mm (

3/8 in.) maximum diameter studs or equivalent cross-section.

c. The maximum shielded metal arc electrode is limited to 3 mm (

1/8 in.) diameter and shall be a low-hydrogen type.

d. The attachment welds, except for those made by the capacitor discharge method, shall be inspected per 7.2.3.5. The attachment

welds made by the capacitor discharge method shall be visually examined for all types and groups of shell materials.

e. All stud welding and capacitor discharge procedures have been qualified in accordance with ASME Section IX. Capacitor discharge

procedures do not require procedure qualification provided the power output is 125 watt-sec or less.

The shielded metal arc weld procedures shall meet the requirements of Section 9 for qualification for use.

7.3.6 Hydrostatic Testing Requirements

7.3.6.1

This hydrostatic test of the tank shall be conducted before permanent external piping is connected to the tank. Attachments

to the shell defined in 5.8.1.1, located at least 1 m (3 ft) above the water level, and roof appurtenances may be welded during the filling

of the tank. After completion of the hydro-test, only non-structural small attachments may be welded to the tank in accordance

with 7.2.1.11. Any welded joints above the test-water level shall be examined for leakage by one of the following methods:

Regards,

Jorge Mejía, Colombia, South America

2011/5/1 <ro...@labuanship.com>

[muthu barathi]

After completion of the
hydrotest, only non-structural small attachments may be
welded to the tank in accordance with 5.2.1.11.

Non-structural small attachments such as insulation clips, studs and
pins but not insulation support rings or
bars may be welded by the arc stud, capacitor discharge or
shielded metal arc process to the exterior of the shell including
reinforcing plates or PWHT assemblies and roof either
before or after hydrostatic testing is performed, but before the

tank will be filled with product provided:

On Tue, 03 May 2011 14:40:36 +0530 wrote

>Dhana,
>
>You need to redo the HT if the welding of temporary support attached
to pressure part, refer to your tank construction code. Thanks
>
>Regards
>RM
>

>Sent by Maxis from my BlackBerry® smartphoneFrom: SOHAIB GHNAIMAT

Sender: material...@googlegroups.com
Date: Sun, 1 May 2011 10:16:21 -0700 (PDT)To: wel...@googlegroups.com>ReplyTo: material...@googlegroups.com

Subject: Re: [MW:10909] Hydrotest-API 650
>Re-Hydro test should be done.

Regards,

Sohaib
>

>


From: DHANASEKARAN SUBRAMANIAM
>To: material...@googlegroups.com
>Sent: Sun, May 1, 2011 8:40:39 AM
>Subject: [MW:10902] Hydrotest-API 650
>
>


Gents,
After the completion of a tank hydro test, some temporary attachment
welding has been made on the shell and roof plates.
What action needs to be taken at this stage, kindly provide the action
plan with code references.


Your Immediate response is highly appreciated.



>--
>

WITH REGARDS,
>DHANASEKARAN .S ,
Mob.no: +96893220429.
>
>
>
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welding.blogspot.com/
>The views expressed/exchnaged in this group are members personel views
and meant for educational purposes only, Users must take their own
decisions w.r.t. applicable code/standard/contract documents.
>




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>
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The views expressed/exchnaged in this group are members personel views
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decisions w.r.t. applicable code/standard/contract documents.
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>

Dear Sir,





Thanking You,

Honesty is the best Policy

With Warm Regards,

Muthu Barathi P
Mobile No:00962788269821 (Jordan)
00962775401951

[DHANASEKARAN SUBRAMANIAM]

Gents,

 

Pad plate for pipe support has been welded with tank shell before hydrotest.

After hydrotest we have done fitup of pipe support on the pad plate which was already welded with shell.

To avoid distortion during the welding 2 stiffner support provided both sides of the pipe support and welded less than 1'' tack weld  with the low hydrogen electrode|(E-7018).

 

Please see the attached figure for your referrence.

 

2011/5/2 Jorge Mejía Lema <jmeji...@gmail.com>

[Javeed Iqbal]

On 5/3/11, DHANASEKARAN SUBRAMANIAM <subramaniamd...@gmail.com> wrote:
> Gents,
>
> Pad plate for pipe support has been welded with tank shell before hydrotest.
> After hydrotest we have done fitup of pipe support on the pad plate which
> was already welded with shell.
> To avoid distortion during the welding 2 stiffner support provided both
> sides of the pipe support and welded less than 1'' tack weld with the low
> hydrogen electrode|(E-7018).
>
> Please see the attached figure for your referrence.
>
>
>
> 2011/5/2 Jorge Mejía Lema <jmeji...@gmail.com>
>

>> Please read the following para gphs API 650 , Eleven Edition:*
>>
>> 7.2.1.11
>> *Non-structural small attachments such as insulation clips, studs and pins

>> but not insulation support rings or bars may
>>
>> be welded by the arc stud, capacitor discharge or shielded metal arc
>> process to the exterior of the shell including reinforcing plates
>>
>> or PWHT assemblies and roof either before or after hydrostatic testing is
>> performed, but before the tank will be filled with product
>>
>> provided:
>>
>> a. The attachment locations meet the spacing requirements of 5.8.1.2a.
>>
>> b. The arc stud welding process is limited to 10 mm (
>> 3/8 in.) maximum diameter studs or equivalent cross-section.
>>
>> c. The maximum shielded metal arc electrode is limited to 3 mm (
>> 1/8 in.) diameter and shall be a low-hydrogen type.
>>
>> d. The attachment welds, except for those made by the capacitor discharge
>> method, shall be inspected per 7.2.3.5. The attachment
>>
>> welds made by the capacitor discharge method shall be visually examined
>> for
>> all types and groups of shell materials.
>>
>> e. All stud welding and capacitor discharge procedures have been qualified
>> in accordance with ASME Section IX. Capacitor discharge
>>
>> procedures do not require procedure qualification provided the power
>> output
>> is 125 watt-sec or less.
>>
>> The shielded metal arc weld procedures shall meet the requirements of
>> Section 9 for qualification for use.

>> *

>>
>> 7.3.6 Hydrostatic Testing Requirements
>>
>> 7.3.6.1

>> *This hydrostatic test of the tank shall be conducted before permanent

>> external piping is connected to the tank. Attachments
>>
>> to the shell defined in 5.8.1.1, located at least 1 m (3 ft) above the
>> water level, and roof appurtenances may be welded during the filling
>>
>> of the tank. After completion of the hydro-test, only non-structural small
>> attachments may be welded to the tank in accordance
>>
>> with 7.2.1.11. Any welded joints above the test-water level shall be
>> examined for leakage by one of the following methods:
>> Regards,
>> Jorge Mejía, Colombia, South America
>>
>> 2011/5/1 <ro...@labuanship.com>
>>
>>> Dhana,
>>>
>>> You need to redo the HT if the welding of temporary support attached to
>>> pressure part, refer to your tank construction code. Thanks
>>>
>>> Regards
>>> RM
>>>
>>> Sent by Maxis from my BlackBerry® smartphone

>>> ------------------------------
>>> *From: *SOHAIB GHNAIMAT <sohaib...@yahoo.com>
>>> *Sender: *material...@googlegroups.com
>>> *Date: *Sun, 1 May 2011 10:16:21 -0700 (PDT)
>>> *To: *<material...@googlegroups.com>
>>> *ReplyTo: *material...@googlegroups.com
>>> *Subject: *Re: [MW:10909] Hydrotest-API 650

>>>
>>> Re-Hydro test should be done.
>>>
>>> Regards,
>>>
>>> Sohaib
>>>

>>> ------------------------------
>>> *From:* DHANASEKARAN SUBRAMANIAM <subramaniamd...@gmail.com>
>>> *To:* material...@googlegroups.com
>>> *Sent:* Sun, May 1, 2011 8:40:39 AM
>>> *Subject:* [MW:10902] Hydrotest-API 650

>>>
>>> Gents,
>>> After the completion of a tank hydro test, some temporary attachment
>>> welding has been made on the shell and roof plates.
>>> What action needs to be taken at this stage, kindly provide the action
>>> plan with code references.
>>>
>>>
>>> Your Immediate response is highly appreciated.
>>>
>>>
>>>
>>>
>>> --

>>> *WITH REGARDS*,
>>> *DHANASEKARAN .S ,*
>>> *Mob.no <http://mob.no/>: +96893220429.
>>> *

>> <http://www.chiefsmilies.com/wp/ie.php?plg=ie&subs=gmail&elm=sign>

>>
>> --
>> To post to this group, send email to material...@googlegroups.com
>> To unsubscribe from this group, send email to
>> materials-weld...@googlegroups.com
>> For more options, visit this group's bolg at
>> http://materials-welding.blogspot.com/
>> The views expressed/exchnaged in this group are members personel views and
>> meant for educational purposes only, Users must take their own decisions
>> w.r.t. applicable code/standard/contract documents.
>>
>
>
>
> --

> *WITH REGARDS*,
> *DHANASEKARAN .S ,*
> *Mob.no: +96893220429.
> *