Saturday, March 30, 2013

Re: [MW:17253] HPV & LPD pressure difference.

in addition to standard and specific practices of hydrostatic pressure testing, either drain or high point vent points valves (LPT, HPT) shall also be tested as per drain/vent valve specification and API standard applicable (like API 6D +) and it should be clearly mentioned in METHOD STATEMENT of HT. (1.5 times of design pressure / MAWP as required)

it may vary as per location, (on/offshore), length of vent / drain point from tapping, closed drain, material spec
 
chandrakant mohikar

 


On Thu, Mar 28, 2013 at 6:07 AM, Jawed Anwar <jawed81@gmail.com> wrote:
DEAR EXPERTS
  i have one query that during hyedro test where should be the pressure guage show the high pressure value at high point vent or low point drain ,and why ?
 
Thanks & best regards.
Mohammad Jawed Anwar .
(welding inspector)
Mob no #  +966569799776.

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