Hi - just doing some "simple" re-plumbing using speedfit. Is excellent so
far (no leaks!) but have a question using isolating valve
These are being used as temporary end stops and I'm having a panic because
there's nothing on the other sides (yet). What's stopping them them from
coming off!?!?!? Specifically with these, there's no "screw lock" like there
is on the other connectors, so I guess its just the inner "ring" that's
stopping it from coming off !?!?!?
There is no need for worry as long as you push home the pipe properly.
The inner ring has backward facing grip teeth and requires the inner ring to
be retracted before the pipe would come adrift.
These are very good for temporary stop ends as they can be used time and
Yep, had one minor leak because I hadn't pushed a pipe in far enough; undid
pipes and reseated; fixed; easy.
I'm very impressed (so far). I'm doing some short (hidden) runs in our
downstairs cloak and was afraid of braising/compression joints et al.
Plastic is very easy, but expensive. The isolating valves will be temporary
end stops for no more than one week (fingers crossed).
Why temporary? Whenever I'm doing a bit of work which involves opening a
pipe I put in an isolator. All the taps and both WCs in our house now have
isolators, so if I want to change a tap washer I just turn off that tap and
SWMBO can carry on using the washing machine.
"Temporary end stop" as in temporary until I sort the plumbing out the other
end of the isolator. The isolator will always be there.
I'm probably flapping unecessarily but I've this picture of the water
pressure (its mains in the cold-water pipe) expelling the isolator at 3AM in
the morning... But I guess if its still there after I've turned turned the
mains water on it should stay there "forever"...
Ah. I thought you meant to remove it and maybe use it again and again as
suggested by Heliotrope. I haven't used plastic fittings, but I imagine
those toothed rings must lose a little strength after a few uses.
Some aren't meant to be used multiple times.
In practice, I find that if you do, it's the
O-rings that stop working, not the grab rings.
They eventually get nicked by a sharp pipe end.
I always keep some 15mm and 22mm JG pushfit endcaps
with my plumbing tools. They can be most useful.
Also, my pressure test guage has a 15mm JG pushfit
end on it. I've had to change the O-Ring a few
times over the last ~7 years.
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