Re: [MW:28709] API 1104 Internal Clamp and External Clamp

Dear Riaz

Yes u can use exetrnal clamp where ever not excess and can use the corresponding WPS

Note - When u r cutting production weld for destructive test of internal clamp welds rewelding is done by External  clamp

procedure.

Regards

Rakesh Kasera

On Sunday, 18 November, 2018, 11:34:34 AM IST, Perumal Govindan <perumalgovindan@gmail.com> wrote:

Dear Riaz,

Convince the Client and get it accepted. If the situation doesn't permit no other way for us, so case to case basis can be acceptable.

Regards
P Govindan

On Nov 18, 2018 8:51 AM, "Ri@z" <riaz.rafeeque@gmail.com> wrote:

this is 18" dia pipe. If internal clamp is not possible, (like tie in joints) we can use external clamp . We developed different PQR-WPS for both internal and External  clamp welding. Internal with downhill progression and external clamp wps with uphill progression .  But in a circumstance we used in Internal clamp and Welded with the parameters as of External Clamp.  Only the clamp type in different 

Is it acceptable ? 

With Regards

Riaz  

 

On Sunday, 18 November 2018 07:53:17 UTC+5:30, Bilal Wahla wrote:

external clamp and internal clamps depends on dia of pipe.  So  how you guys can change clamps?

. 

On Sat, Nov 17, 2018 at 2:37 PM munee...@gmail.com <munee...@gmail.com> wrote:

It is in violation with conjuction to the governed approved WPS, if the paramaters of the both WPSs are not similar for shuffling.

Thanks.

---

Regards,

Mohamed Muneeb Mahaboob

CSWIP 3.2-89247/2 & AWS-CWI (2007)

ASNT-NDT-L2-RTFI-RT-UT-MT-PT.

SAP#:70021650 APs:JAPID, QCS & QCI.

E munee...@gmail.com M +91-636 -955-7189

Say (O Muhammad SAW to mankind). "If the sea were ink for (writing) the Words of my Lord, surely, the sea would be exhausted before the Words of my Lord would be finished, even if we brought (another sea) like it for its aid."18-109

 

From: R...@z

Date: 2018-11-16 12:54

To: Materials & Welding

Subject: [MW:28638] API 1104 Internal Clamp and External Clamp

Dear  All,

External clamp and internal clamp WPS and PQR procedures are qualified with downhill process and uphill process respectively.  But one joint has welded with internal clamp following  all other variables as of external clamp WPS

Is this acceptable ? If yes , how can we justify ?

Pls help very urgent 

Ray

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