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August 1, 2024
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Unusual gas main connection pipe size?

  • August 1, 2024
  • 23 replies
  • 815 views

 Two engineers have visited my house so far to fit a smart gas meter but they dont have the correct  fitting, nor an adaptor, to connect to the gas tap. It doesnt seem there is anything we can do about it!
The size of the short copper pipe coming out of the flange and going into the lead pipe is 0.795 inch / 20mm outside diameter. 

The house is 1962 but the gas meter is 1994. I’m suprised that it is so unusal. Anyone know about gas pipe sizes?


Incoming gas pipe

Best answer by Lukepeniket_OVO

Updated on 10/06/25 by Ben_OVO

Sorry, the fitting on the ecv into the reg itself is an approved fitting, I should have been more clear. There is no current approved fitting to use on these.

 

You can contact your gas transporter to request a change, you can find out your gas transporter here: https://findmygdn.co.uk/

 

I hope this helps :-)

23 replies

Emmanuelle_OVO
Retired Moderator
Retired Moderator
August 2, 2024

Hey @paulmmmm,

 

Welcome to the OVO Online Community,

 

I’m sorry to hear about the failed attempts to fit a gas smart meter. I’m not an expert in this field but I wonder if @Lukepeniket_OVO can assist here? 

Renewable Energy? Big Fan.
BPLightlog
Super User
Super User
August 2, 2024

Can you post a wider picture @paulmmmm ? It looks like the connection already has an odd adapter fitted 

 

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, Hybrid EV, ASHP and Home Assistant automation}
OVO Engineer
August 2, 2024

Hello, this looks like a Legacy ECV known as a conical ECV. There's no approved gas industry fitting for these types of ECV so all you can try and do is to get the gas transporter to change the hole ecv. 

 

Is this a 3 storey house?

 

Thank you

OVO Operations Excellence Manager and Former Field Operations Team Leader
paulmmmmAuthor
Rank 2
August 2, 2024

Its a two storey house from mid 60’s.

I think the engineer did say it was a conical ECV.
If there are no approved fittings is it even safe!

How do I go about asking the supplier to change the ECV?

 

 

BPLightlog
Super User
Super User
August 2, 2024

It’s the gas transporter who needs to change it 

*ECV - Emergency Control Valve

You can see more details here (scroll down for gas) and there’s a link for you to find your gas transporter depending on your location. 

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, Hybrid EV, ASHP and Home Assistant automation}
OVO Engineer
August 2, 2024

Updated on 10/06/25 by Ben_OVO

Sorry, the fitting on the ecv into the reg itself is an approved fitting, I should have been more clear. There is no current approved fitting to use on these.

 

You can contact your gas transporter to request a change, you can find out your gas transporter here: https://findmygdn.co.uk/

 

I hope this helps :-)

OVO Operations Excellence Manager and Former Field Operations Team Leader
paulmmmmAuthor
Rank 2
August 2, 2024

Thanks for your replies and useful info . I’ve submitted a query to Cadent so we will see what happens!

Blastoise186
Super User
Super User
August 2, 2024

You’re most welcome. Luke is extremely good at helping us out if even we get stumped, so no doubt we can ask him to swing by again if needed.

If you ever get any more burning questions, feel free to stop by anytime.

Securing energy by zapping security bugs... For that is The Blastoise Way! Remember, I'm just like you - AI Powered Evil Geniuses aren't Staff!
paulmmmmAuthor
Rank 2
August 2, 2024

Stalemate!

So this is the response from Cadent Gas. Perhaps not unexpected.

Good Afternoon,
 
“Thank you for your enquiry.
 
Providing your ECV is operable and functioning properly, there is no requirement for it to be replaced.
 
Engineers should have the appropriate adaptors to allow them to make connections to these type of ecvs.
 
If the ECV is faulty, you can contact our emergency line on 0800 111999 who can arrange for an engineer to attend.

Regards”

Ovo engineers have said they dont have an adaptor so the only answer maybe is to switch to a supplier who does have the right parts. I wonder then if the elecricity smart meter will stop working!

 

 

 

 

 

Blastoise186
Super User
Super User
August 2, 2024

Luke is highly experienced - if he can’t get the parts, chances are no other supplier can either (as in, they might not exist at all).

Securing energy by zapping security bugs... For that is The Blastoise Way! Remember, I'm just like you - AI Powered Evil Geniuses aren't Staff!