Looking for small flanged tank connector for PVC tube

Chris Green snipped-for-privacy@isbd.net wrote in news: snipped-for-privacy@q957.zbmc.eu:

Maybe consider a pushfit bulkhead conector.

eg:

fred snipped-for-privacy@for.mail wrote in news:qQqHQ.94223$ snipped-for-privacy@fx16.ams:

Hmmmn pvc hose, maybe a barbed connector would work better than a plumbing one:

No, these need access to the inside of the tank to fit them (unless I'm misunderstanding how they work).

No, all these have the same issue, one needs to get to the 'other side' to attach a nut and tighten it. I don't have access to the other side.

All with the same issue as the other ones above, one needs to be able to get to the inside of the tank to fix them. I don't have access to the inside at all.

Maybe I didn't make clear what I need. I have access to the top of a closed tank, i.e. all I can see is a large blank sheet of metal and I can only get at the outside of it.

Thus I'm looking for a connector of some sort for a pipe (a barb would be ideal) that has a flange with a ring of holes that I can put self tapping screws through into the tank to hold it in place. ... with a larger hole in the middle of course.

It's the sort of thing you see holding a fuel gauge float for example, except I want one with a barb.

Surely it's quite a common thing to want, a way to connect to a 'closed' tank.

I suspect you have quite an unusual use case. Maybe, buy a tank connector and drill some holes in the flange?

Or use lots of araldite to bodge it? Surely, if it's in the lid of the tank it doesn't need to be waterproof at all?

sandwich a rubber sheet between tank and flange, fix with pop-rivets?

Steel turnings not advisable in a galvanised tank..

I don't believe it's that unusual, I've wanted to do this sort of thing before (less importantly) and found it difficult.

Yes, as I said in my original post, perfect sealing isn't necessary.

Surely though someone makes a simple round plate with a barb in the middle of it don't they?

I haven't seen any tank connectors with a large enough flange to do this sort of thing. It's all I need really. It does need to be a reasonably wide flange though to make it practical to fix with pop rivets, or self-tapping screws or whatever.

I think you have already answered your own question viz the petrol guage idea. Not barbed, but this would suit your need with suitable reducer nipple :

Cheers, Jim

That's just about it! :-) Drilling the holes may be a little 'interesting' as it's stainless steel but apart from that it's exactly what I'm after.

I hadn't noticed the different profile on the back ...

The truncation has broken the link such that I can't work out what it should have been, can you try and tell me what I should look for please.

Ah, no, I've found it! Thank you. I may even have some 1/2" BSP to barb adapters.

How is he going to make the hole for the water to get through even if he avoids holes for self-tapping screws? The OP didn't say it was galvanised, and water tanks for boats seem to be either plastic or stainless steel:

try "Hose Union Backplate"

Ah, thank you, that gets me to the right sort of place. :-)

Some are designed for fitting things other than water pipes but there may well be something suitable if I search around.

I finally found what I wanted, in french they are called "Écrou de bride" which translates as "Flange nut" but searching for 'flange nut' in english produces virtually no hits, whereas the french produces lots of hits of what I wanted.

Anyway, here is one of the few englsh hits:-