Hydro Test Safe Distance Calculation

Far enough that you can't hear the shouting.

.......and they wonder why I loathe ANONS

42

What waste water or cold water line?

#1. Turn off the Cap Lock, you do not need to shout!!!!

#2. Do some research on the dynamics of a catastrophic air release and fluid release.

#3. Run some tests using balloons.

#4. Ask your professor.

Wow I get an off topic rate. Is there anywhere else fair? The OP probably's referring to hydrostatic test at construction site cold water line and waste water lines.

I mean who would stand around testing high pressure tanks and measure the safe distance to observe it? Isn't that silly don't you think?

Why do people think that safety margins are calculated. They are not calculated. They are empirically determined by the damage to flesh and property from when things go wrong.

There isn't an equation for everything. Capital Letters won't flush one into the open either, Mildred, so do pack up the SHOUTING. It's bad manners.

It is the same calculation as with Hazardous Materials unplanned releases.

1- Stand looking at the incident

2- Hold up the thumb of your right hand towards the incident

3- Move back as you are looking at the incident and your thumb

4- When you are far enough away that you can't see the incident because your thumb is completely blocking it (or Hydro test) you are at a safe distance.

5- If this is still too close, hope that your life insurance is paid up.

Good Luck, Old Salt

PV*0.

If you search precisely in internet, you can find an excel sheet prepared by someone to calculate the safe distance for both hydrostatic test and pneumatic test based on Lloyd's register (96-02) T-0240. Glen safety manual - pressure system safety w/change 1 (6/27/2014) and ASME PCC-2 are also useful documents. I had witnessed couple of boiler hydrotests along with an ASME Authorized Inspector. However, AI didn't ask for safe distance calculation to be followed during hydrotest. Even both of us went inside the boiler to check for leaks during hydrotest. I am really sorry, at present I am bit busy and I am not in a position to describe the whole story due to time limitation.

So humor us you tested the boiler from the outside or did you go in with a pressure suite?

I'd like to hear about it. Hope you will survive the next assignment to tell the story!

What's a "pressure suite"? Some sort of hotel room?

A person knowledgeable in boiler construction would have no problem understanding this. They were in the fire side, not the water side.

suite suit