Flexi connectors & isolating valves

[scottpetrie]

Hi
I'm just away to install a new bathroom. My current bathroom is old & has no isolating valves on the pipework. Im going to fit flexi pipes on sink & bath. What type of isolating valve do I need to enable them to join up? i.e. if I screw flexi pipe straight onto tap, will the opposite end of it screw straight into the isolating valve which will be on the main pipework? Also, my current shower is being replaced. Where would be best to put isolating valves for this?

 

[muggles]

Be aware that flexi pipes severely restrict the flow of water as they have a much smaller bore than their equivalent size in copper pipe. You'll need a short length of copper pipe between the valve and the flexi.

 

[just pumps]

Be aware that flexi pipes severely restrict the flow of water as they have a much smaller bore than their equivalent size in copper pipe. You'll need a short length of copper pipe between the valve and the flexi.

Depending on your choice of iso valve that is.

 

[oldbuffer]

What you use depends on the flexi connectors you get with the bath and basin taps, that is if you must use flexi's.

1. If the pipework end is a compression fitting, you need a short (60mm) length of copper pipe to connect an ordinary isolating valve to the flexi.
2. If the pipework end is a female threaded fitting (with a rubber washer inside) you will need:
2a. A flat faced isolation valve as a direct connection. (E.g. BES part No. 23573 for 15mm)
OR
2b. An isolating valve connector (tap tail connector). (E.g. Toolstation 14081 for 15mm)
OR
2c. Get the best isolating valve you can (E.g. Pegler full bore), 15mm for basin, probably 22mm for bath. These need connecting by a short (60mm) length of appropriate diameter pipe to male irons (they are made of brass) which have a compression fitting one end and a BSP thread the other. You'd probably need 2 off 15mm x 1/2"" and 2 off 22mm x 3/4". Connect pipe to isolation valve, and compression end of iron to other end of pipe, then flexi to other side of iron.

 

[ianmcd]

or just use these or similar , they have the isolation valve built in to the flexi.

https://www.screwfix.com/p/flexible-tap-connector-with-valve-15mm-x-x-300mm/3558g

 

[just pumps]

or just use these or similar , they have the isolation valve built in to the flexi.

https://www.screwfix.com/p/flexible-tap-connector-with-valve-15mm-x-x-300mm/3558g

That`s a big fat NO from me.