Re: [MW:16912] FLAT FACE FLANGE PAINTING

Hi'

As manufacturer has painted bolting area on flat face. 

1) check as per drg what gasket to use

2)Is there any serration on flg face.

3)they paint after sand blasting or just by hand brush

Generally no manufacturer paint if full face gasket req

 

Chetan Karbhari 

---

From: Gerlof Oegema <Gerlof.Oegema@aurecongroup.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Thursday, 28 February 2013 4:13 PM
Subject: RE: [MW:16902] FLAT FACE FLANGE PAINTING

Hi,

It is always good practice to slightly paint the clamped area of flange face only with a red oxide paint to maximum DFT of 40 microns (with gramophone finish still visible) as to prevent corrosion of this clamped area while waiting to be installed.   

Regards,
G. Oegema

 
DISCLAIMER
-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Praphulla Phirke
Sent: Thursday, February 28, 2013 11:36 AM
To: materials-welding@googlegroups.com
Cc: materials-welding@googlegroups.com
Subject: Re: [MW:16901] FLAT FACE FLANGE PAINTING

What is the test pressure ?

Better to remove the paint completely and You can use either neoprene or PTFE gaskets.

Praphulla
Sent from my iPhone

On 28-Feb-2013, at 14:05, Lalu r p <lalucpt@gmail.com> wrote:

> Dear sir
> Normally for flange faces we do not paint the surface to ensure the
> proper sealing.and it is normally machined for the gasket tightness.
>
> On 2/28/13, G Sreenivas Rao <gsrinivasg3@gmail.com> wrote:
>> Dear sir
>> In pressure vessel flat flange shall not be painted, this is for
>> gasket seating and if painted the are will not be giving seal
>> tightness. please ensure if the area is giving seal tightness then
>> can be left as it is.
>>
>> Regards
>> G.Sreenivas Rao
>>
>> On Wed, Feb 27, 2013 at 12:26 PM, Suresh Babu
>> <suresh75.babu@gmail.com>
>> wrote:
>>> Dear Experts,
>>>
>>> We have some flat face flanges in Pressure vessel. The pressure
>>> vessel manufacturer done the painting on the flat face up to the
>>> bolt hole and left the remaining face unpainted. I hope the entire
>>> flat face will leave as unpainted. I am trying to get info from
>>> client which type of Gasket they will use at site.
>>>
>>> Please put your suggestions.
>>>
>>> --
>>> Best Regards,
>>> Suresh Babu,
>>> suresh75.babu@gmail.com
>>>
>>> --
>>> To post to this group, send email to
>>> materials-welding@googlegroups.com
>>> To unsubscribe from this group, send email to
>>> materials-welding+unsubscribe@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=122
>>> 787&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-welding+unsubscribe@googlegroups.com.
>>> For more options, visit https://groups.google.com/groups/opt_out.
>>
>> --
>> To post to this group, send email to
>> materials-welding@googlegroups.com
>> To unsubscribe from this group, send email to
>> materials-welding+unsubscribe@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=1227
>> 87&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-welding+unsubscribe@googlegroups.com.
>> For more options, visit https://groups.google.com/groups/opt_out.
>
> --
> To post to this group, send email to
> materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@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=12278
> 7&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-welding+unsubscribe@googlegroups.com.
> For more options, visit https://groups.google.com/groups/opt_out.
>
>

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@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-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.




--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@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-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.