1949 Ben Patents Compressor

[gazz81]

Not much of project thread, but a bit of advice needed please!

I have decided to upgrade the air pump on my compressor as the previous replacement has never really been up to the job.

New pump arrived today, but I'm unsure where to get the correct fittings to connect it too the tank.

The current pump is connected using 15mm domestic plumbing fittings, but the new pump has a more modern fitting!

Does anyone know what is needed to attach a pipe to the pump, I can worry about the other end when I've got the first bit sorted.

[gazz81]

nobody have any idea?!!

[colnerov]

Hi, 15mm Copper pipe as well as steel is used to do hard lines round a workshop so will be alright. Use whatever you have that will work.

Colin

[93fxdl]

Probably easier if you take it to a place that makes hoses and pipes, such as pirtec, looks a bit like these,
store.norgren.com/uk/en/list/fittings-tubing-and-accessories/fittings/compression-fittings-external-nut
But difficult to tell from the pictures
Ttfn Glenn

[gazz81]

I have tried a 15mm copper pipe compression nut on it and its a lose fit, so whatever its supposed to be is very close to that!

[tonup]

Could it be the common JIC fitting?

en.m.wikipedia.org/wiki/JIC_fitting

[gazz81]

No idea, I have emailed the company I bought it from and hopefully they might know!

[slater]

Buy a set of thread gauges and a vernier and measure it. Once you know the details the information on all types of thread and fittings are avaliable online.

As said it looks like a JIC but you will need to measure the size and look it up.

[gazz81]

on the vernier it reads 18.79mm or 0.740 inches

[gazz81]

I have been thinking! As previously said, my existing pump is connected using 15mm copper and compression fittings. Also as previously mentioned, I have tried a compression fitting on the new pump and its sort of a lose fit. ( It won't push on, but threading it won't tighten up, just slips on the thread)
If I cleaned the paint off and bought on of these fittings, would soldering it on be a viable option?

[skkylinedave]

Sounds a bit iffy to me . I would tend to think that even if it didnt blow off immediately that it might after a while .

[skkylinedave]

www.ebay.co.uk/itm/3-4-Brass-Old-Imperial-Copper-Tube-Compression-Adapter-Olive-for-22mm-Fittings-/161217858632

[colnerov]

Hi, That fitting in the head of the compressor is for use with a flared pipe. Try taking the fitting out of the head and start from the head itself. Or take it to a hydraulic company and see what they suggest.

Colin

[skkylinedave]

TBH thats what i would do . Take it to a hydraulic repair place . The fittings will be a couple of quid maybe and the pipe not much . I would not expect it to cost much really , it would only take someone less than 30 mins i guess .

[gazz81]

I do agree, although I'll still have the fun of trying to then connect to the 15mm household fitting on the tank!

[skkylinedave]

Just get them to do the lot .

[gazz81]

Sorted!! Took the fitting out of the head and it turns out the part that threads into the head is 1/2"bsp (household compression fittings!)
So I can just replace the whole lot for copper and connect to my tank via the 15mm copper pipe.

[gazz81]