Thread: Guessing Game Mk III : What Engineering Marvel is this.?

Originally Posted by rick130

God I wish a tension wrench was used on some of our refrigerant bottles.
Trying to open the valve sometimes on a fresh bottle is damned near impossible.

Some people have no idea of the difference between closed and closed so seriously ****ing tight that an atom of helium couldn't pass under the blast pressure of a nuclear explosion!

Get this on fork lift gas bottles too 😡

.....or food jars from supermarkets (according to my wife)

Originally Posted by cuppabillytea

[...] I suppose the why is that sometimes Gas valves need to be turned off from a safe distance, or behind a mist spray.

Enjoyed practising just that a number of times during a firefighting course to prep for fire team duties during my stint with antdiv down south

Originally Posted by Chops

Get this on fork lift gas bottles too 😡

It's surprising how many people turn the valve on, then continue to wind it out ALL THE FREAKING WAY. If something goes wrong, and you need to cut the gas quick, I sure as hell wouldn't want to have my hand near the catastrophe for the 10 turns it takes to shut it off.
Turn it on, then another 1/4 turn is fine. You don't gain 100HP by having it open all the way.

Originally Posted by Toxic_Avenger

It's surprising how many people turn the valve on, then continue to wind it out ALL THE FREAKING WAY. If something goes wrong, and you need to cut the gas quick, I sure as hell wouldn't want to have my hand near the catastrophe for the 10 turns it takes to shut it off.
Turn it on, then another 1/4 turn is fine. You don't gain 100HP by having it open all the way.

Tell that to my SWMBO. Hot water taps don't work unless they are fully open. But then, she believes that there is a secret device inside packaging that make things go off as soon as the date on the label is reached.

Originally Posted by Toxic_Avenger

It's surprising how many people turn the valve on, then continue to wind it out ALL THE FREAKING WAY. If something goes wrong, and you need to cut the gas quick, I sure as hell wouldn't want to have my hand near the catastrophe for the 10 turns it takes to shut it off.
Turn it on, then another 1/4 turn is fine. You don't gain 100HP by having it open all the way.

That's exactly what I tell the young fella's regarding oxy/acetylene and nitrogen too.

Just open it enough to get pressure for exactly the reason you said.

Pop quiz... looking at the oxy set on a trolley, or strapped to a wall, should the acetylene be on the left or the right? (assuming normal vertical inlet regulators are fitted)

Hi,
Mr google seems to indicate Oxygen on the left

Cheers