More on gas fittings.

[nigelmercier]

From a previous thread ...

... a Hayward 4005. But surely it is neater to get a hose with an M20 fitting already crimped on? ...

It seems that ready made hoses to do what I need are scarce, but I've managed to source the fittings for the gas bottle end.

The next obstacle to overcome is the bulkhead compression elbow joining the gas pipe to the cooker hose:

This has obviously been made up of different parts, and needs to be replaced. Any suggestions?

 

[Tranona]

From a previous thread ...
It seems that ready made hoses to do what I need are scarce, but I've managed to source the fittings for the gas bottle end.

The next obstacle to overcome is the bulkhead compression elbow joining the gas pipe to the cooker hose:

This has obviously been made up of different parts, and needs to be replaced. Any suggestions?

That fitting is really rubbish and is metric. I was unable to find a replacement. I had all that replaced on mine with standard fittings. Will look on the boat tomorrow to see how the fitter did it.

 

[vyv_cox]

Seems to be a good selection here http://www.gasproducts.co.uk/acatalog/Bulkhead_Fittings.html

 

[Rigger Mortice]

or try www.bes.co.uk

 

[daveyw]

Looks like a hydraulic fitting
http://m.ebay.co.uk/itm/151027296590

 

[Tranona]

Just looked at mine. It uses the elbow fitting and a straight adaptor as shown on p62 of the BES cartalogue. These are brass rather than the (rusty) mild steel of the original and use standard olives in the compression fittings.

 

[nigelmercier]

Looks like a hydraulic fitting
http://m.ebay.co.uk/itm/151027296590

Is there any reason why one can't use a hydraulic fitting? It looks ideal.

Just looked at mine. It uses the elbow fitting and a straight adaptor as shown on p62 of the BES cartalogue...

You mean 11690 for the straight? I can't see a BSP to compression elbow on that page, my catalogue is September 2013.

[Later] Also looked online.

 

[Tranona]

You mean 11690 for the straight? I can't see a BSP to compression elbow on that page, my catalogue is September 2013.

[Later] Also looked online.

The elbow is 11696. The male end of the straight connector goes through the sheet steel and the elbow screws to it like a bulkhead fitting. Gives you a compression fitting at either end.

 

[nigelmercier]

The [BES] elbow is 11696. The male end of the straight connector [11690?] goes through the sheet steel and the elbow screws to it like a bulkhead fitting. Gives you a compression fitting at either end.

Only just seen this reply. Thank you, but I still don't get it.

I'm really struggling with this. I would have thought that turning 90° via a bulkhead with 8mm pipe would be a common thing to do, but I can't find the fittings anywhere. I've even resorted to asking the suppliers and manufacturers.

 

[Tranona]

Well, it works on my boat which is exactly the same original fitting as yours. The fixed pipe behind the splash shield has a right angle bend in it so that it goes straight into the in line fitting.

Like you, I was puzzled by that horrible steel fitting as it seems the bore is larger than the olives for the pipe on the new hose. So that is the point at which I got a fitter in to do the job and replace the entire system.

 

[David2452]

8mm compression bulkhead elbow here if you want one. http://www.ebay.co.uk/itm/Hydraulic-Compression-Equal-Bulkhead-Elbow-Tube-Connector-8mm-8L-DIN2353-/151027296590

 

[nigelmercier]

... I got a fitter in to do the job and replace the entire system.

Can you explain again what fittings are used, and how they are connected?

8mm compression bulkhead elbow here if you want one...

I'm not keen on using a steel fitting, is this even "legal"?

 

[David2452]

Can you explain again what fittings are used, and how they are connected?



I'm not keen on using a steel fitting, is this even "legal"?

I understand your reticence, but yes, quite acceptable, probably would be condemned after a few years of corrosion if not properly protected though.

 

[RogerMayne]

Can you explain again what fittings are used, and how they are connected?



I'm not keen on using a steel fitting, is this even "legal"?

Mild steel fittings are not suitable for lpg gas pipes on boats

 

[Nicholas123]

Mild steel fittings are not suitable for lpg gas pipes on boats

Nonsense.I've got a mild steel elbow on my gas cooker that is probably thirty years old.That is just unnecessary scare mongering.

 

[Tranona]

Nonsense.I've got a mild steel elbow on my gas cooker that is probably thirty years old.That is just unnecessary scare mongering.

The one in the picture is standard fitting on Bavaria and as you can see corrodes to the point that it is almost impossible to undo. Not surprisingly I replaced mine with brass fittings after less than 10 years internal use. The similar bulkhead fitting in the external locker had to be cut out as it was so corroded.

 

[Nicholas123]

The one in the picture is standard fitting on Bavaria and as you can see corrodes to the point that it is almost impossible to undo. Not surprisingly I replaced mine with brass fittings after less than 10 years internal use. The similar bulkhead fitting in the external locker had to be cut out as it was so corroded.

I'd be more worried that it was only held on by two or three threads & I'm not keen on brass because it age hardens & can become brittle.At least with rust you can see it!

 

[VicS]

I'd be more worried that it was only held on by two or three threads & I'm not keen on brass because it age hardens & can become brittle.At least with rust you can see it!

Only held on by two or three threads ?????

 

[Nicholas123]

Only held on by two or three threads ?????

I thought that bit on the outside was separate but I may be wrong looking at it again?

PS:If not I'd probably just rub a bit of oil over it & it would be perfectly alright.

 

[nigelmercier]

I thought that bit on the outside was separate but I may be wrong looking at it again?

I thought so as well, but perhaps it's an 8mm to male parallel thread elbow with a flange...

[Later] In fact exactly like the one David links to in #11.

Either way, I can't find anything to replace it in brass.