Reinforcing Pad Tale Hole/Testing Port Shall be seal welded after pressure test

[Yemmina Madhusudhan]

Is there any standard which states weep hole to be seal welded after completion pressure test.

Regards

Yemmina Madhusudhan

Mechanical Engineer

[Arash Cheraghi]

no. it is not practical because aggregation of welding gases increases the internal pressure between shell and reinforcement plate and welding not applicable , in small reinforcement plates seal weld may be applicable,  

weep hole should be monitored during hydro/leak test.

to prevent internal corrosion weep hole shall be tapped with bolting.

--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[LALU RAJENDRAN]

Hi Mr. Madhusudhan, 

No, but I have seen in some of the Client specification states that it shall be seal welded after pneumatic test. since it is a tapped hole, you can use suitable bolts to seal and prevent corrosion.

Regards,

LALU R.P

--

[Shashank Vagal]

Hi,

Threaded bolts with sealing grease is a more normal practice, seal welding these holes may become problematic in future if you want to use them for corrosion checks.


With Best Regards,
Shashank C Vagal (Quality Adviser)




-------------------------------------
On Sun, 20/7/14, LALU RAJENDRAN <lal...@gmail.com> wrote:

Subject: Re: [MW:21432] Reinforcing Pad Tale Hole/Testing Port Shall be seal welded after pressure test
To: "material...@googlegroups.com" <material...@googlegroups.com>
Cc: "madhusudhan yemmina" <yemminama...@gmail.com>
Date: Sunday, 20 July, 2014, 6:03 PM

[Mohammed Yassar]

Dear All,
Where can we find in detail about the reinforcement pad and weep holes in ASME or any other construction rules regulations.

Much appreciate to shed some light on it.

B rgds,
Mohammed.

--

[sudhakar kuppuswamy]

Hi,

Not required to weld tale hole after pressure testing

Chance for residual gases presence are high, if you seal weld it , during operation due to high temperatures gases may expand and lead to failure if it is thin wall.(in rare cases it occurs, so not adviceable to do seal welding)

Regards
Sudhakar.K

On Jul 20, 2014 2:58 PM, "Yemmina Madhusudhan" <yemminama...@gmail.com> wrote:

--