Heating System Isolation valves

[rpm]

Hi Forum,

What valves can i use to isolate a section of my heating system 22mm in size. Do they make a pushfit version?

cheers

Chris

Don`t know if the usual plastic push fit valves are full bore or not but do know the beggers start leaking whenever I go near them. lol

 

[Last Plumber]

I've come across lever (full-bore) valves and gate valves from the early 90's in the same block of residential flats, guess which ones didn't work......

I agree gate valves are serviceable but there are two issues. One, if they worked as well as a branded full bore lever they wouldn't need servicing. Two, if you service a gate valve for a customer and it then fails, you end up getting it in the neck from the customer....

"it was fine till you touched it" etc etc....

I agree. The problem a lot of the time is that decent quality 'lever type' ball valves are on the shelf. However, most shelf stocked small gates, 15mm or 22mm are Crud !
If you buy gates like Crane, the quality is very good. It's all a matter of opinion though.

 

[thereisawizza]

Yup, I've had some of the own brand ones where the thread for splitting the valve is way to slack for comfort

 

[quality]

lever ball valves in plumbing is quite recent in plumbing 10 years or so I recon

 

[Best]

lever ball valves in plumbing is quite recent in plumbing 10 years or so I recon

A lot longer than that. But really only became extremely popular with plumbers as we became more aware of them and their quality and the merchants started stocking plenty.
I know I was using full flow lever valves about 20 years ago and they probably were frequently used 30 years ago for some jobs.

 

[drip-dry]

Think I used a full bore valve about 31 years 2 months ago..remember it was Christmas time '85,got called on a wed night about 8.45 pm....

 

[snowhead]

Think I used a full bore valve about 31 years 2 months ago..remember it was Christmas time '85,got called on a wed night about 8.45 pm....

That must have been Xmas day as 25th Dec 1985 was a Wednesday..

Unless it was the week before on the 18th.?

Calendar 1985

 

[ChrisKing]

Thanks guys for your comments, I need to isolate the furthest point of my heating system to make some building alterations. I have since found a Pegler lever ball valve for Water, Steam, Oil and Air so am going to try them. Thanks