flexible hose

[rymatom]

i am going to order a flexible hose to go from a 15mm copper pipe to the toilet cistern. which size do i need as there are 2 to choose from
1. 15mm x 1/2" x 10mm bore or
2. 15mm x 1/2" x 13 mm bore.
is the bore size important
i am going for a push fit one end.

 

[JohnD]

2

bigger bore is better flow

though it won't make much difference.

 

[rymatom]

cheers john. is it true that they are not suited to stainless steel pipe.

 

[JohnD]

Sorry, don't know.

Stainless-on-stainless fittings tend to seize. you can get a special anti-seize spray from engineering suppliers. I've never thought about that on plumbing fittings.

one of the guys may know.

 

[corgiman]

Sorry, don't know.

Stainless-on-stainless fittings tend to seize. you can get a special anti-seize spray from engineering suppliers. I've never thought about that on plumbing fittings.

one of the guys may know.

I have no idea, never heard of it

 

[rymatom]

i have a speedfit 15mm x 1/2" flexi hose which i brought from focus and i have just noticed that it says it is not suitable for stainless steel pipes.

 

[corgiman]

i have a speedfit 15mm x 1/2" flexi hose which i brought from focus and i have just noticed that it says it is not suitable for stainless steel pipes.

strange, I will ask a rep tomorrow, I may just be being a numpty nugget but I really have never heard of it

 

[giblets]

The reason they say "not for use on stainless" is because s/s pipe is very hard and the little teeth in the push-fit fitting will not grab onto the pipe.

Don't ask me how I know this. (At least it was in my own house )

 

[corgiman]

The reason they say "not for use on stainless" is because s/s pipe is very hard and the little teeth in the push-fit fitting will not grab onto the pipe.

Don't ask me how I know this. (At least it was in my own house )

OHHHHH


their push fit, giblets right t wont grab, sorry I though you meant compression

DOH its been a looong day

sorry

 

[mark.carline]

i am going to order a flexible hose to go from a 15mm copper pipe to the toilet cistern. which size do i need as there are 2 to choose from
1. 15mm x 1/2" x 10mm bore or
2. 15mm x 1/2" x 13 mm bore.
is the bore size important
i am going for a push fit one end.

I just wondered - where did you get your 13mm bore from - I have been looking for these for ages and not managed to find any !?!?

 

[TicklyT]

http://www.screwfix.com/app/sfd/cat/pro.jsp?cId=101316&ts=21461&id=39492

For the OP - The bigger bore flexi will allow a greater flow, but if you are only filling a 6 litre cistern through a float valve from a mains pressure supply you may well need to fit a flow restrictor, so a 10mm flexi would be adequate.