35mm pipe so no
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Pressure testing 63mm gas pipe
- Thread starter mutley racers
- Start date
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- Tags
- gas engineer pipe pressure
Any idea on how to go from mdpe gas to copper. Cannot find any philmac which mention this. Seems like quite tricky to get connection on this pipe to pressure test it.
32mm to 11/4 or 11/2 female iron
11/4 or 11/2 to 35mm comp male iron
11/4 or 11/2 to 35mm comp male iron
Are you commercially reg mut ?
No am not. I thought it would be ok to just test this pipe doesn't have any leaks in before it gets buried. I am not doing anything else on this job.
i would say you need to be qualified then
Gas Transporter will know MIP.
The Gas installer/Gas installation designer will Know MOP but Gas transporter will know it too.
No no test certificate needed. Will check depths etc when there. The pipe is sleeved in yellow corrugated pipe.
Edit:
So this is what I need to test and cap this pipe. Quite a lot of fittings.
1 x philmac 63mm end cap
1 x primofit adaptor 63mm compression to 2 inch bsp Female
2 inch x 1 inch brass reducer
1 inch male iron to 22mm compression and some copper tube. Test, then cap the test point.
1 x philmac 63mm end cap
1 x primofit adaptor 63mm compression to 2 inch bsp Female
2 inch x 1 inch brass reducer
1 inch male iron to 22mm compression and some copper tube. Test, then cap the test point.
That’s why commercial guys charge loads
I know Shaun and Last plumber use £50 notes as bog roll.
I am charging 2 days to just go and test this plus the parts. It is down in Margate so should be half a day there, back and testing.
Trouble is finding places that stock these fittings. BES do but then I need to wait for a delivery and was hoping to get down there tomorrow.
It has taken me 2 days to research fittings due to work, wife and 3 kids at home all being rather demanding.
I need to take more dump breaks at home I think!
Trouble is finding places that stock these fittings. BES do but then I need to wait for a delivery and was hoping to get down there tomorrow.
It has taken me 2 days to research fittings due to work, wife and 3 kids at home all being rather demanding.
I need to take more dump breaks at home I think!
Bss will have stock / they should
Just writing them a materials list now. Fingers crossed
Unfortunately they are not a stock item.
Try sbs smith brothers there London area
Turns out A certificate is required for the soundness of this length of pipe.
Still would have thought I could test this as it is just an empty carcass?
Did you find out the MIP & MOP yet?
I contacted the network and they said I need to do an online form which can take 2-3 weeks to come back as the pressures going to individual properties is different. I am thinking this is not correct hey.
Yep most places I work are around the 50-75 mbar mop but mip can vary anywhere from 75mbar to 1 bar depending on what's around
The STP is determined by the MOP or MIP. It has little to do with pipe sizes or volumes. On a std low pressure supply the MIP will be 75mb. STP will be 1.1 x MIP which in this case is 82.5mb. Test duration (for any size pipe) is 5 minutes stabilisation + 5 minutes test. 20% pressure loss is allowable with a pneumatic test and 5% if hydrostatic testing.
On bigger systems at higher pressures (again any size pipe), if the MOP is say 2 bar the STP would be 2bar x 1.5 = 3bar tested for 10 minutes stabilisation plus 5 minute test with the same drops allowed.
Taking it to the extreme with a MOP of 16bar the STP is 16 x 1.5 = 24bar. Hydrostatic test only, stabilise for 30 mins test for 30 mins with a 5% allowable drop.
(IGE/UP1)
On bigger systems at higher pressures (again any size pipe), if the MOP is say 2 bar the STP would be 2bar x 1.5 = 3bar tested for 10 minutes stabilisation plus 5 minute test with the same drops allowed.
Taking it to the extreme with a MOP of 16bar the STP is 16 x 1.5 = 24bar. Hydrostatic test only, stabilise for 30 mins test for 30 mins with a 5% allowable drop.
(IGE/UP1)
I am guessing as the pipe is only able to carry 5.5bar the pressure test is not going to be 24bar?
thats your max gas pressure not the max pressure the pipe can take i would be surprised if you over 75mbar op
eg of the calcs below
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