Hydrotesting Pressure gauge calibration

[Praveen Kumar]

Dear All,

 

Can you pls Suggest as the Piping Hydrotesting Pressure gauge calibration period of time,

and also is there any code/stds governing for this.

 

 

 

Regards,

 

Praveen Kumar

Mechanical Engineer

 

[Karthik]

Hi, Pressure gauge calibration time shall be in every 6 months as per the normal practice and various project specifications. Thanks & Regards, (Karthik) Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Thu, 11/25/10, Praveen Kumar <praveenk...@gmail.com> wrote:

-- 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.

[Muni Andy]

Dear Mr.Praveen,

As per Indian Standard IS 3624,It is to be calibarated once in 3 months.

You can refer the customer or relevant applicable spec.

C.Muniyandi

Surveyor

--

[Sundaram Elumalai]

Some Client – ARAMCO requires every 30 days. Please check your client spec also.

 

With Kind regards,

S.Elumalai.

---

[manoj vernekar]

Shell/PDo before every test,

 

End of the day client specification to be followed

 

manoj

Manoj.Vernekar

[Richard Bonardo]

Dear Karthik :

I have a complicated situation with pressure gauge calibration period.

During calibration test, our gauge found to be showing wrong reading (below actual). And clients ask to re-test all spool pipe tested using the gauge.

My question, is that acceptable ? luckily there are only small number of spool to be re-tested, but I cant imagine if that happens to spools that already put in service.re

Just a share, but I appreciate any coments and advise.

Best Regards
Bonardo

---

From: Karthik <karth...@yahoo.com>
To: material...@googlegroups.com
Sent: Thu, 25 November, 2010 2:13:24 PM

Subject: Re: [MW:8373] Hydrotesting Pressure gauge calibration

[muthu barathi]

Hi,

Ststutatory requirements depend upon mfrs. recommendation, clients requirement, or continuously used more than 4 times or while testing if there is any more difference than tolerance or calibrated test certificate reading or not working properly during test or any damage or more heat zone then you have to recalibrate and compare reading . if it goes beyond tolerance or acceptable limit of std engineering procedure simply throw it and replace with new calibrated by accredited body such as NABL approved labs.



On Thu, 25 Nov 2010 15:48:55 +0530 wrote

>Dear Karthik :

I have a complicated situation with pressure gauge calibration period.

During calibration test, our gauge found to be showing wrong reading (below actual). And clients ask to re-test all spool pipe tested using the gauge.

My question, is that acceptable ? luckily there are only small number of spool to be re-tested, but I cant imagine if that happens to spools that already put in service.re

Just a share, but I appreciate any coments and advise.

Best Regards
Bonardo

From: Karthik

To: material...@googlegroups.com
Sent: Thu, 25 November, 2010 2:13:24 PM
Subject: Re: [MW:8373] Hydrotesting Pressure gauge calibration

Hi,
Pressure gauge calibration time shall be in every 6 months as per the normal practice and various project specifications.

Thanks & Regards,

(Karthik)

Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066
892512282

--- On Thu, 11/25/10, Praveen Kumar wrote:

Dear Sir,





Thanking You,

Honesty is the best Policy

With Warm Regards,

Muthu Barathi P
Mobile No:00962788269821 (Jordan)
00962775401951

[Priya Deshmukh]

Dear Pravin,

 

I think pressure gauge calibration period depends upon the extent of use of the pressure gauge or the client specification. It needs to be stated in your quality control system.

 

But one think which is needed is pressure gauge verification or calibration after hydrotest to check whether there is any damaged that was caused to the gauge during hydrotest.

 

If it shows out of calibration. The test needs to be repeated again with proper pressure gauge.

 

Regards,

 

Priyanka Deshmukh.

Engineer QAC.

On Thu, Nov 25, 2010 at 11:52 AM, Praveen Kumar <praveenk...@gmail.com> wrote:

--

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.

--
Priyanka Deshmukh,
Quality Control Engineer,
Transparent Energy Systems Pvt. Ltd.

[sohale ikram]

Best practice is get to calibrated before every test but keeping in mind the commercial aspects a six month time period or client specs can be followed. it  also depends on how many times you are using the gauge in the stipulated time period.

 

Best regards

Sohale

---

From: Sundaram Elumalai <Elumalai...@starfab.com.sa>
To: material...@googlegroups.com
Sent: Thu, November 25, 2010 12:57:24 PM
Subject: RE: [MW:8375] Hydrotesting Pressure gauge calibration

[Rajakrishnakanth, SA]

Hi Bonardo,
To avoid these type of situations,always connect two pressure gauges sothat
even one pressure gauge shows wrong reading,the other one will help.

Thanks & Regards
S.A.Rajakrishnakanth
Senior Manager Inspection
Jacobs Engineering India Pvt Ltd.,
Chennai
Land line : +91-44-42014380.
Mobile No : 09677166021

-----Original Message-----
From: material...@googlegroups.com on behalf of Richard Bonardo
Sent: Thu 11/25/2010 3:47 PM
To: material...@googlegroups.com

Best Regards
Bonardo

Thanks & Regards,

(Karthik)

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[murugesan jeyaraman]

In general calibration every six months acceptable, or you can go for every  three months calibration. or else you can go according to client specs.

 

If your projects is such a multi million project,  and  you are having pipe spools in thousand or two thousand plus spools, and pre fabrication itself extends to long period such as one to two years. You can go for six months outside calibration, with internal calibration of every two weeks or one week, by buying a pressure applying gauge to your pressure gauges and can have internal calibration.

 

Thanlks

 

Murugesan

[Karthik]

Hi, This might happen sometimes even though within the calibration period due to sudden increase or decrease of pressure.You have to advice/ask your pressure test team/person to increase or decrease the pressure gradually as shown on your pressure test procedure and chart.Sudden increase or decrease shall effect the pressure gauge performance and result in wrong readings. For your case,You have to retest all the spools where you have used that particular pressure gauge.

Thanks & Regards, (Karthik) Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282

--- On Thu, 11/25/10, Richard Bonardo <bonar...@yahoo.com.au> wrote:

[Arunachalam A]

Logically, if the test gauge shows a pressure reading below the actual test pressure during calibration, means during actual hydrotest, the spools are tested at a higher pressure than actual test pressure. 

So logically, no need to test the spools again.

arun

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