These are definitely aimed at new pipework, although note the "retro fit" clamps on that page as well.
I see a couple of issues. If the crimp does
not go properly first time, what could you do except abandon it and fit a normal clamp? (Well, unless you're going to pull apart the new plumbing, which seems unlikely.)
The other thing I find kind of odd is that these are clearly aimed at plumbers. Now plumbers don't usually get involved with running main bonds and the like. They
might bond across their plastic couplings if you're lucky, and that seems to be what's hinted at.
So if these
solder fittings are mainly intended for bonding across plastic couplers, what exactly is the point?
By the time you've soldered three of these to the pipes, then cut and soldered short lengths of pipe to each one to go into the "quick fit" plastic coupler, wouldn't it have been quicker to just solder the three pipes straight into a sweated T-joint in the first place and avoid the need for separate bonding cables?
