Plumbing

[hunston]

What is the difference between a service valve and an isolating valve. they both look the same and they both stop the water flow. Is it where they are used?

[velvet lady]

ones used in a high level cistern, the other in a low level

[buildersmate]

I think they are terms for the same thing.

[gasman]

They are actually the same thing and it is just what we call jargon. So yes it just depends where the valve is in relation to the system and appliances as to whether we call it an iso or a service valve.

[happybaggy]

They are the same thing but a service valve usually refers to a valve that will isolate a piece of equipment such as a washing machine and an isolating valve is one that shuts off a section of the system pipework such as the cold water feed to the cylinder.

[plumbingdoctor]

they are the same iso valve has both ends a compression while service valve has only one end compression and another end has a threaded