Pressure testing 63mm gas pipe

[mutley racers]

I have been asked to pressure test and cap of 12metres of 63mm yellow gas pipe that is in a trench. Nothing is connected to either end.

Pressure testing to 10 bar should be fine hey?

 

[Last Plumber]

I have been asked to pressure test and cap of 12metres of 63mm yellow gas pipe that is in a trench. Nothing is connected to either end.

Pressure testing to 10 bar should be fine hey?

Edit

 

[mutley racers]

It will be buried yes. This is going to be used at a later date so just checking this length is sound and then capping off.

10 bar is what I test all pipework to on new systems

 

[ShaunCorbs]

Commercial mut also I would follow fitting instructions/ pipe instructions will state a pressure prob

 

[Scott_D]

Is it rated to 10 bar?
1.5 times MIP? If I remember correctly

 

[mutley racers]

Is it rated to 10 bar?
1.5 times MIP? If I remember correctly

Just about to follow shaun' S advice and look up MI'S. Never had to work on mdpe pipe for gas before.

Fittings for this are £40 plus vat . Costly

 

[Scott_D]

Just about to follow shaun' S advice and look up MI'S. Never had to work on mdpe pipe for gas before.

Fittings for this are £40 plus vat . Costly

Fusion weld?
You will need to hire the kit as well

 

[mutley racers]

Fusion weld?
You will need to hire the kit as well

I am only going to test and cap off so will use philmac fittings

 

[Last Plumber]

Edit

 

[Last Plumber]

Edit

 

[mutley racers]

Last plumber, your post has disappeared it seems?

I have found this info on the pipe but no pressure testing method. This is a new carcass with no joins and nothing attached to either end.

 

[ShaunCorbs]

Max pressure so keep under them and you will be fine

Test at like a bar

 

[mutley racers]

Max pressure so keep under them and you will be fine

Test at like a bar

This is the max gas pressure going into the pipe though isn't it? So I would have thought I would need to test it to more than the 5.5 bar.

 

[ShaunCorbs]

This is the max gas pressure going into the pipe though isn't it? So I would have thought I would need to test it to more than the 5.5 bar.

No that's the max pressure the pipe is rated to if you go above it could blow the pipe / split

What's your gas working pressure?

 

[Last Plumber]

Last plumber, your post has disappeared it seems?

I have found this info on the pipe but no pressure testing method. This is a new carcass with no joins and nothing attached to either end.

View attachment 35973

Do you know the MIP and MOP the pipe will be subject to once commissioned?
There are various pressures that PE should be tested to dependant on those pressures. If you can tell me those, I will endeavour to look up the pressure it requires testing at for you if that will help you. They are in table 1 of IGE/UP/1.