Trainee Plumber - Tightness Test Gas / Meter Checks
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- čas přidán 21. 08. 2024
- Gas Training - How To Do A Tightness Test On A Gas Meter.
Trainee plumber doing his safety checks on a gas metre and also a tightness test. My name's Allen Hart. And in today's video, we've got one of the trainees from Viva Training Academy and I'm going to show him how to do a tightness test on a gas metre. We're also going to go through all the safety checks that you will be doing on a gas metre as well. If you could, I'd be very grateful if you could put some comments below, if you give him some encouragement in the comments below, that would be great. He will be watching this video, there are no doubts about that. Yeah, so let's go over to Ali.
This video is for Gas Safe registered and trainee gas engineers under supervision. Please comply with the current regulations at the time.
Do you want to open the gas metre and show me what we need to be looking for?
Yeah. So first of all, you just need the key from the gas box, the gas meter box. Some basic safety checks that you need to do in your metre box are, firstly, you need to be making sure that the ECV, the emergency control valve, falls to the opposition.
Yeah.
Okay. And that should bring it to on, and then you should also have some sort of a label that shows which is the on and off position for an emergency situation.
Okay, going up the Anaconda, you need to make sure that the seal is on the governor. That's just to make sure that it's not been tampered with. And on the metre itself, you should have the emergency number. This is the number for Cadent, so if you smell gas or owt like that, that's the number that the customer needs to be ringing. Okay?
And then you need to be making sure that the metre itself is secured, right? That looks in good working condition. Another thing that you need to check is that you have 10-millimetre earthing wire that is within 600 millimetres or within the first T junction.
Or before the first T. Yeah.
Or before the first T.
Yeah.
And you need to make sure that you have the ... What is the name of this, Allen?
That's just an earth clamp.
That's an earth clamp. Right. Okay. Yeah?
With the gas at labelling, the number, it could be whoever the gas transporter is at the time. So I always call it Transco because that's what it used to be. Obviously, it changes ... National Grid .... Sometimes in different areas, it's different as well. But it's always the same phone number to phone, and it's 0800 111 999. And that's if you can smell gas leaks, et cetera.
What type of metre installation is this? It's an actual, it's a low pressure.
It's a low pressure, yeah.
If it were a medium pressure metre, then we'd have to make sure the gas pipe's not allowed to go through the back of the metre as well. But we'll talk a little bit more about medium pressure in another video.
Yeah, that sounds good.
So we've looked at the basic safety things to check on the gas metre. Now Ali's going to show us how to do a tightness test. So yeah, let's go over to Ali.
Today we're going to be doing some tightness testing with Allen. First of all, before we touch any metal appliances, any gas appliances, we need to make sure that it's electrically sound. Just for the purposes of this video, we've already completed that before we started. Now, the next part that we need to go on to is making sure that our manometer, also called the U-tube gauge, is in good working condition and is level to zero, zero.
So for the next part of our test, Allen, what we're going to do is we're going to turn off the gas, and what we're going to do is going to perform a let-by test. A let-by test is essentially a test to see if the ECV, the emergency control valve, is letting gas out whilst it's supposed to be closed. Okay? So let's remove the test nipple and put our manometer in. Okay. We need to make sure that our piping is straight, the tube is straight, so we don't get an incorrect reading. What we need to do now is bring the pressure up to between 7 and 10 millibars. So yeah, as you can see here, it's just under 10 millibars and we need to allow that to run for one minute.
The purpose of this test is to see that if this valve right here is letting by, if it's allowing gas to pass through here. And the reason why we do this test is because if it is letting by and if it did have a leak on the system, then that's now something that we'd be able to pick up because we've got that gas leak is being covered up by the gas that's being allowed to come through here. So we've just allowed this to run for one minute and as we can see here, it's still on 10 millibars. So we can confirm that the ECV is not letting by.
We can now move on to the temperature stabilisation test. What we're going to do is we're going to put this up to between 20 and 21 millibars and we're going to allow that to run for one minute. So we've allowed the temperature stabilisation to run for a minute and we can see that it's still the same and it doesn't need any readjustment.
So strange seeing that flue there. Its troubling my eyes especially without the terminal guard. This is a good video Allen. Nice to have a visual aid. Please keep posting commercial videos too. You've been posting for 10 years and you can tell in the quality of the vids. Keep posting more and as regular as possible. It's improving industry standards.
hay there. I've sent Allen loads of vids but as I said to him the other day its his channel so its up to him and no rush. its not Allan's fault. some of mine are long winded and need editing, which takes time. He's doing some good stuff with the kids and I would really love to get some of them kids on my sites. put them in the deep end. its how I learned. As you know we are like Unicorn shit, Plus I'm a oddball and have LV 1 and 2 C&G in electrics. I'm sure you are the same.
I will keep on sending videos.
Thank You.
Very good lads. Nicely done. Clear and concise explanation.
Thank You
I was taught in training to fully open the ecv at the end of the test to standing pressure to ensure regulator had not lock up during the test. Good vid keep them coming 👍🏻
I have never heard of that before but that’s a great idea. Thanks for sharing.
@@AllenHart999 ,Jon is absolutely correct ( if the regulator is locked up that means you would have back pressure feeding your leak, if one is present ,making your tightness test void, inaccurate at best).
Jon , thank you for your comment👍.
Excellent effort...Big up to Allen
Thank you.
Great video, well done Allen 👍
Thank You
amazing video. WELL DONE ALI AND THANKS ALLAN
I always give a quick spray of leak detector on the gas tap.
That flue needs a basket allen 🤣 unless youve grown
😂😂😂😂
well done nice and confident and a steady hand to raise pressure to 20mbr first try . good vid Allen thanks again
Thanks 👍
Well done Alan, keep up the good work 👍🏽
Thanks, will do!
I love plumbing work details
I would also put a clamp meter around the earth conductor on the gas main to ensure there is no earth current or diverted leakage on that CPC.
That would be in addition to using your voltage meter - I would think a proper voltage meter and proving unit is better than a NCV stick.
Covered everything needed there, good on ya kidda. TT in, TT out.
Gone way more than most there.
Bird cage on that flue though (which I'm sure there is) 😂
Great video
Thank You
Really helpful!!
I'm newly qualified gas engineer, I'm in London I would love to go on jobs with Allen to gain experience. There's so much too learn from a proper gas engineer who don't cut corners. Shame he don't live near by. If you are in London ever give me a shout.
Thank you so much for your kind words.
I'm newly qualified, it's been 3yrs, how did it go
And also make sure your contractor who replaces your boiler and the copper pipe doesn't drip flux on the Flexi pipe. Found out this week that it had corroded the flexi pipe and leaking gas. The work was done last July
Thanks for the comment.
Very Good thanks !!!!!
thank you so much for sharing this video with us .
Thank You
Thanks for this video Allen 😀
Thank You
Very good well done, nice job. Terminal guard missing on flue lol
Thank You
Hay folks. Me personally use electronic. It cuts down time (commercial) And doesn't blow out your water on medium or high pressure systems (don't expect you folks to be working on high pressure). Honestly? electronic is how it should be. You print it off and prove your work. Its all about CYA these days, cover your arse. Don't get me wrong I keep a water one on my van but, I have two monometers and my FGA that also does a tightness test. Cant be to careful these days. I'm a big believer in PROVE YOUR WORK. CYA.
Love ya all.
We have a new video coming soon using a Kane. Thanks.
Need also to visually check for corrosion of the gas meter itself, and any holes at the back of meter box going into the wall of the property
Thank you for the feedback.
Quality video
Thank You
The allowable 4mb drop over 2 mins is with the proviso that appliances are connected and there is NO smell of gas.
100% Correct. Thanks.
Well done lads x
...ello Allen, I can honestly say that was a great video, clearly you have trained 'Alley' to a good standard and I think he did you proud there. I am not sure that was the 'first roll' or 101 , but good delivery. Any reason why you guys dont use 'highly' colored manometer fluid ? It would have beeen good if Alley did the manometer setup, putting fluid in it, etc .never mind eh.
Thank You
Great video Allen. I thought I recognised you from Tik Tok and your pv panels and batteries
The electrical earth bonding has one of the conductors wrapped round the end of the insulation. All the conductors must terminate on the earth clamp. This happens all the time as earth cables have an odd number of conductors. If this practice is carried out it reduces the size of the earth conductor (CPC)
Very good video
Thank You
Good job
Thank You.
is it worth mentioning that the gas hob / gas oven / boiler etc, should be not be in use,, when you are doing the tests, I know that it is only " common sense " but not every body has " common sense " it's good that a good person, is educating us, unlike some people on youtube who are sending us down the wrong road, because they do not know what they are talking about, which is bad.for every one.
Hi Allen hart is the trainee now gas safe engineer
top man x2
Thank You
👍📖👌 Great Video
If you turn gas valve off unscrew inlet and outlet nuts and take meter out and replace with your own and tighten nuts back up amd turn gas back on then there should be no problems as it's like for like ..test for leak with a squirty bottle with soap in ...if it don't bubble then jobs a goodn
That flue outlet to left of your man should have cage cover !?
Thanks.
As a ret'd Gas Engineer , 1 wee omission, 4mbar escape is allowed ONLY IF NO SMELL OF GAS REPORTED !!! Any report of a smell of gas, no matter how small a leak, must be found !!
bore off
Another top job there 4mb drop with no smell of gas ?
Absolutely. Thanks.
hi alan thanks for video.. i am new student too. when i do u guage other side doesnt come same even when i adjust them to same..
is that normal or do i need any adjustment to get same on both side please
thanks in advance 😊
Yes, add them both together and divide by 2. Thanks.
Make sure sheerbolts are in tact
Thanks.
Nice bhai
Thank You
On a hot day I smell gas at the side of my house but couldn't tell where its coming from
Awesome
Hello Allen, thanks for your video, now I am doing my gas safe engineering course and I need a gas safe engineer for my portfolio, so could you please guide me?
Excellent video Allen, what did he do to get the pressure from 10 to 20 for the second test?
Exactly
he obviously opened the gas valve more via the handle
How do you change the gas meter outside box if its damaged? I bought a nice new one but my plumber wont fit it for me because of the lower left nut
Good question. You need to call out the gas transporter i believe.
@@AllenHart999 Thanks. I called them already. They said they charge £120 but includes a box. Because I already bought one now its a bit annoying. still waiting to hear back from them after sending pictures and everything over in email. Hopefully they can fit my Mitras MK2 box because it looks really good. (for a gas box!) Hahah.
@@E69apeTheMatrix420 swap it yourself its piss easy ..if its like for like then it's a straight swap
@memyselfandi36 The mains gas in on. The nut is before the valve. There will be gas bellowing out whilst I change it over. Not very well explained my end but the pipe that goes into the bottom of the box has a valve inside the box. Therefore to unscrew the valve to get the box off means gas everywhere.
@@memyselfandi36 I have a proper enclosed box replacement. Not just some backless cover to place over everything.
For the Tightening test do you leave the U gauge on 20-21 like the Temperature stabilization test?
Yes but for a further 2 minutes
Should not be compression fittings on meter outlet
In Nigeria, we use gas cylinder and lpg gas for gas tightness test will it be the same process as the natural gas
What happened to safe safe to touch test
Why is tightness test done at 20-21mb
Guards should be fitted over all flue terminals less than 2m above ground level?!!!
Hello, Allen. I tried to join by making a payment buy but could not because I am in Nigeria and I did my gas engineering training. Let me know how can donate using other means
Hi ya , are smart meters considered same as ultrasonic e6 meters in terms of permissable drop of 8bmr
Allen what does the maximum allowable drop equate to in volume of gas lost over a year.
Cant seem to find the video, but where was the bleed off valve from,for the manometer thanks.
alen you haven't mentioned anything about turning the pilot off any gas fires or opening the cooker glass lid when you are doing a tightness test
Nice video though 👌
Great video as usual!
I am wanting to complete a gas training course to ultimately be Gas Safe, I am currently doing my level 1 plumbing at college, do you have any advice? Thank you
Don’t bother mate to many gas people the market is flooded with gas engineers
@@petersutton587 that's because its a huge demand. Which makes it a perfect career choice.
@@sidmuzik9397 that’s what the training centre want you to believe to take your money
@@petersutton587 the majority of gas engineers are in there 50s, which means that they will be retiring in the near future, which also means there will be an even bigger demand for gas engineers 🙂
@@sidmuzik9397 ok mate you know best you will find out the hard way when you can’t find work and if you do the money’s crap
Hello. Could you let me know how can I fill up this manometer with fluid? Thank you
Take one if rubber tube ends off and fill with cold water until its around zero mark. Then lever the ugauge and slide it to zero on both sides
I thought he would ask u for a £10 with u being a Yorkshire man as a tightness test😉
😂😂😂😂
Not too bad however you haven't tested the installation for electrical isolation you touched it about 10 times before mentioning the earth bonding ,simple electrical checks will save your life
4 mb drop allowed providing no smell of gas
Allen, could you please, indicate this piece of law which says that the only qualified person can carry out work on gas installations?
You need to be gas safe registered in the UK or competent,
there is difference between need and must...my question is still not answered...maybe in the next video say a few words about it....up to my knowledge there is no piece of LAW which obligate to be gas safe registered to carry out work on a gas installation...they say "competent"...
Is it illegal to install a gas cooker yourself? from Mr. Google...
There is no law to say you cannot do a gas installation yourself providing (under the law) you are competent. ... Also stated is that you (the homeowner) should not carry out any work that results in the disturbance of a gas carrying or supply component e.g. a gas supply pipe.
@@AllenHart999
Is it illegal to work on your own gas boiler?
It's not technically illegal to carry out DIY gas work in your own home* as long as you are 'competent' to do so, but the consequences of doing so without the necessary skills are hugely dangerous. Working with gas is a complex and dangerous task that requires extensive training, knowledge and experience.
after applying the the gas leak detector do you have to wipe the solution do to cursive effect ?
Cursive?
You shouldn’t be telling the general public how to work on gas. Prat.
"Smell Gas or aught like that" You got yourself a proper Yorkshire lad there.
The isolating valve should have been installed so that door could be closed with valve in isolated position.
The Valve turns both ways. Thanks