Heating System Isolation valves

[ChrisKing]

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

 

[Last Plumber]

Gate valves.
Not sure on push fit because I don't use them.

 

[drip-dry]

gate valves ...right...so i can fit a couple of gate valves on the flow and return above my open vented boiler,close and run,no probs,few clues in above,glad you are gas safe and hopefully signed up for gas awareness week...

 

[ShaunCorbs]

where are the valves going/ being installed op?

 

[thereisawizza]

Gate valves? Bit last century

 

[rpm]

Thinking lever valves are more reliable and quicker to turn off.

 

[Last Plumber]

gate valves ...right...so i can fit a couple of gate valves on the flow and return above my open vented boiler,close and run,no probs,few clues in above,glad you are gas safe and hopefully signed up for gas awareness week...

The question was about isolating the sections of a heating system if you read it.

Try not to be condescending and pay more mind to being helpful.

I have been an Industrial Commercial and Domestic Heating Engineer for 28 years, So I do know not to valve off a boiler as you suggested !

What has Gas awareness week got to do with Heating system sections ?

 

[Last Plumber]

Gate valves? Bit last century

They're full bore valves designed for the open vented system circuits we're discussing.

They have less restriction / frictional resistances to ball valves.

They're serviceable !

 

[rpm]

Lever valves for water & gas can be full bore, take your point about being serviceable though.

 

[thereisawizza]

They're full bore valves designed for the open vented system circuits we're discussing.

They have less restriction / frictional resistances to ball valves.

They're serviceable !

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....