OSO Pressure Reducing Valve

[Skid Solo]

The engineer just about to install a new central heating and mains pressure hot water system, has just asked if he can swap the cylinder from an Ariston to a OSO Super S Series (both 300 litre) as the OSO will fit easier into the airing cupboard.

My concern is that the Pressure Reducing valve on the OSO is set to 3 bar and on the Ariston it is 3.5 bar. Am I going to be able to tell the difference ? (I like a powerful shower to wake me up)

I have also read on this forum (but a few years ago) that you could replace the pressure reducing valve on the OSO is that still applicable and does it relate to the Super S Series ?

N.B. I have 4.2 bar at 22litres/minute mains supply.

 

[kevplumb]

My concern is that the Pressure Reducing valve on the OSO is set to 3 bar and on the Ariston it is 3.5 bar. Am I going to be able to tell the difference ?

wouldnt think so

 

[Skid Solo]

Thanks for the response, however can anybody answer the question relating to upgrading the pressure relief valve in case 3 bar is not sufficient

 

[oldbuffer]

Assuming its the new type of OSO Super S, then maximum cylinder working pressure is 8bar. In theory there is nothing to stop you replacing the 3bar prv insert with a 3.5 bar one (obtainable from RWC). You might have to upgrade the expansion vessel, but probably not.

Why not give OSO a ring and ask them?

 

[Agile]

N.B. I have 4.2 bar at 22litres/minute mains supply.

Do you really mean that?

A dynamic flow rate of 22 li/min @ 4.2 Bar?

I dont think so!

Tony

 

[twgas]

Have you ever had an unvented cylinder before, set at 3·5bar, if not you'll not know what it's like and consequently will not know any diferent.