Minimum pressure to operate a toilet fill valve

[Fallout]

Does anyone no roughly the minimum pressure required to operate a toilet flush valve? Thanks

 

[denso13]

the minimum pressure required to operate a toilet flush valve

A flush valve? No pressure is required, the mechanism lifts and the cistern empties into the pan. Not sure what you mean.

 

[terryplumb]

Trick question .title refers to fill valve and content of post refers to flush valve.
Answer to both is not very much, roughly !!

 

[Fallout]

Sorry I ment a fill valve.

 

[Fallout]

Would 0.2 bar do it?

 

[denso13]

Yes, low pressure ones would work.

 

[Fallout]

Thanks its a grohe concealed cistern one, any idea if these are low pressure? I'll ring technical tomorrow.

 

[Madrab]

A lot of the valves are low pressure by default and then you either insert or remove a filter/reducing insert supply dependent.