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I need to change a stopcock valve, it's 3/4". Is that the same as 22mm? In other words can I just do a straight swop...?
Thanks in advance......
I know bugger all about plumbing, but three quarters of an inch (25.4mm) is less than 20mm, so 22mm sounds like quite a bit out.
3/4 is as near as you can get to 22mm,, it may be better to just change the washer. A problem could arise if you try and change the whole thing as if the threads are not the same (should be) the olives are now captive on the pipe and you cant get them off with out sawing the pipe,then it will be to short.
If it has been dribling or leaking for sme time you can re seat it
why do you need to change the tap
3/4" is a fitting size. 22mm is a pipe size.
What are the diameters of pipe either side of the stop tap?
If the gland washer is leaking, thats the one on the knob stem where it goes into the tap, the nut can be undone and the gland washer re packed with hemp. maybe just tightening the nut will stop it
If the stop **** cannot be turned off the you can borrow against a deposit a re seating tool that cuts a new face for the washer
A photo would help if possible
3/4" is a fitting size. 22mm is a pipe size.
What are the diameters of pipe either side of the stop tap?
On reflection.....if that is the case, why is the outgoing stopcock marked 3/4" and the new one 22mm??
Help...
The 3/4" refers to the thread for the fitting (that will be where the tap part screws into the body of the tap.)
The outlets at either side will be 15mm, 22mm or both.
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