I need to cap off a water connection which is the water pipe connector to an M15 hose pipe from a kitchen sprayer tap. I have included images so you can understand my problem. Can anyone tell me the best way to blank off that pipe. (That's the vertical brass pipe in the photos)
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3/8 plug ?
I don't know what size plug I need. Is there any way to check? I assumed there would be an M15 plug available but there doesn't seem to be an M15 there are M14 or M16 but no M15. The hose attachment connected to it via a M15 threaded connector so wouldn't it be the same size as that? Also do I need a plug with a rubber o ring washer to stop any potential leaking issues when connected?
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3/8 measures roughly 15mm
Can I ask why it needs to be blanked off ?
Can I ask why it needs to be blanked off ?
It was leaking and the spare parts are no longer available. So I thought I'd blank off the sprayer water supply then at least I can use the pot filler tap head underneath it. At the moment I have the water isolation valve switched off so there's no water supply to the tap. Because weirdly because of the design if the sprayer becomes faulty somehow you can't isolate it. If you turn on the pot filler then water shoots out of the sprayer brass connection you can see in the photos.
3/8 or 9/16? 3/8 of an inch is not nearly 15mm
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Correct, if you are talking comparison of measurements but not if you are talking threaded pipe sizes.
3/8" pipe thread is not 3/8".
Re the hose fitting thread, manufacturers quite often use a custom / non standard thread to suit their needs.
It looks to me like a finer pitch than bsp thread, but I could be wrong!
To answer your question about how to check:
- pair of vernier callipers to measure the internal dia. (or external of the fitting on the hose)
- thread gauge to measure the thread pitch?
- verniers to estimate the thread pitch by measuring multiple turns?
- trial and error buying something and trying it!
And lots of ptfe tape round whatever fits well enough!
You've got the male version of the thread on the hose - try taking that into a plumbers merchant, or engineering supplies shop.
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