maximum pressure for hydrotest piping which has flange 150#

[rudiawan .]

dear all..
please advise the maximum pressure for hydrotest of piping spool which contains flange 150#
refer to ASME 16.5 for material carbon steel group 1.1 is about 19.2 bar (from table 2-1.1. SME 16.5)
can we go more than this limit pressure

 

[The Obturator]

Read ASME B16.5 Paragraph 8 Pressure Testing

 

[LittleInch]

dear all..
please advise the maximum pressure for hydrotest of piping spool which contains flange 150#
refer to ASME 16.5 for material carbon steel group 1.1 is about 19.2 bar (from table 2-1.1. SME 16.5)
can we go more than this limit pressure

Hydrotest pressure is 1.5 times maximum working pressure at 38C.

Flanges just become part of the piping system and subject to the piping design code for hydrotest. The flanges may be the limiting factor, it might be something else, pipe thickness, pressure vessel MAWP limit etc

 

[pierreick]

Hi,
Consider this link and standards mentioned.

Pressure Test of Piping System

This content provides you with a example specification for pressure test of piping system. This content is useful for field inspectors.

www.inspection-for-industry.com

Pierre