Hydrostatic Testing Safety
Hydrostatic Testing Safety
(OP)
I am looking for any insight into calculating safe working distances for personnel not associated with a hydrotest whom may be conducting work activities near the location of the test being conducted.
For example, if a 400psig test was being conducted on a 20" Sch40 Carbon pipe, using water as a test medium, what would be a safe distance to work away from the pipe bing tested? 10' for every 100psig? I have looked through countless references, but cannot find any solid answers, only the grey areas. If anyone could give me guidance, it would be greatly appreciated.
For example, if a 400psig test was being conducted on a 20" Sch40 Carbon pipe, using water as a test medium, what would be a safe distance to work away from the pipe bing tested? 10' for every 100psig? I have looked through countless references, but cannot find any solid answers, only the grey areas. If anyone could give me guidance, it would be greatly appreciated.





RE: Hydrostatic Testing Safety
RE: Hydrostatic Testing Safety
When I first got into the industry it customary to hit the welds in pipe and vessels with a 16 lb hammer except when the temperature was near 40F. It was normally hit twice, once at half pressure and again at full pressure.
RE: Hydrostatic Testing Safety
Would either of you know a technical manual or a hydrostatic guideline available that would give me something to go on to present to workers in the field?
RE: Hydrostatic Testing Safety
RE: Hydrostatic Testing Safety
RE: Hydrostatic Testing Safety
See page 11 of this NASA Safety Manual... http
The NASA manual mentioned a couple of precautions during hydrotest, but no mention of how much the safe distance should be.
You might also get some insights here...
http
RE: Hydrostatic Testing Safety
My experince with hydrotesting is largely on cargo transport tanks so the common safe zone was simply the sevice bay in which the tank was located.
EJL
RE: Hydrostatic Testing Safety
Also try to grab hold of this publication...
http://www
I doubt it mentions any safe distances for hydrotest.
RE: Hydrostatic Testing Safety
Anyway the formula is:
safe distance = (0.15) x (D) x (a)^0.4 x (p)^0.6
where D - internal diameter (m)
a - length / diameter of piece (m)
p - test pressure (bar)
Hope this helps,
JR97
RE: Hydrostatic Testing Safety