Incoming supply 22mm threaded?
- Thread starter South
- Start date
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Do you think it might be 20.99mm?
Are you measuring on the smaller side, where I think there is a nipple?
www.stevensonplumbing.co.uk
Is the lower pipe iron or plastic?
If the joint is leaking, you can also take it apart, clean it with a wire brush, and remake it. You will need to find your outdoor stopcock to turn off the supply.
Are you measuring on the smaller side, where I think there is a nipple?
BSP Thread Size Information | BSPT | British Standard Pipe Thread
British Standard Pipe Thread (BSP) sizes / dimensions including a BSP to mm conversion chart
Is the lower pipe iron or plastic?
If the joint is leaking, you can also take it apart, clean it with a wire brush, and remake it. You will need to find your outdoor stopcock to turn off the supply.
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The pipe is plastic on the outside but could have a metal core or insert. It pretty flexible.
The tap has the kite mark and 22 written on it.
The outer pipe diameter is 21.5mm but I have not removed the tap to look at the threads.
Is 20.99 a standard thread?
Thank-you for your help.
The tap has the kite mark and 22 written on it.
The outer pipe diameter is 21.5mm but I have not removed the tap to look at the threads.
Is 20.99 a standard thread?
Thank-you for your help.
Yes, half inch BSP
See link.
Plumbing fittings very commonly use BSP threads. The thread name is different from any measurement you find on the fitting.
Please take a wider pic. Is there a copper pipe above the cock, or black plastic again?
Black Alkathene pipe was usually made in inch sizes. The newer blue is metric. Inch size pipes are measured by their internal diameter, metric pipes by external. It is quite hard to find fittings for old black pipe. There might be identification stamped into the side.
In some cases there is a near-enough metric size if you use a different olive and/or insert. You may find it more practical to clean up and re-use the old
See link.
Plumbing fittings very commonly use BSP threads. The thread name is different from any measurement you find on the fitting.
Please take a wider pic. Is there a copper pipe above the cock, or black plastic again?
Black Alkathene pipe was usually made in inch sizes. The newer blue is metric. Inch size pipes are measured by their internal diameter, metric pipes by external. It is quite hard to find fittings for old black pipe. There might be identification stamped into the side.
In some cases there is a near-enough metric size if you use a different olive and/or insert. You may find it more practical to clean up and re-use the old
Last edited:
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