New gas hose - difficult to fit...

[PetiteFleur]

Tried to fit new 8mm gas hose to the original fittings and it was very difficult - what's the easy way to get the hose on the bulbous ended fittings? Tried some washing up liquid and heating the hose in boiling water but still difficult. Now dismantled everything and will try at home with fittings clamped in a vise and brute force... Any suggestions?

 

[Daydream believer]

Different sized hose tail, or a 10mm hose

 

[vic008]

Pretty simple- try 10mm hose

 

[Baddox]

Pretty simple- try 10mm hose

Or use 3/8th inch which is also slightly bigger than 8mm. Soaking in some solvents will expand the hose but getting the right size would be better.

 

[Boathook]

There is also a difference between HP and LP hoses on the wall thickness. I believe that this can at times effect the internal diameter.

 

[awol]

I have just fitted a new length of 8mm hose and it was more difficult than I remember. I used the tapered ferrule of a small screwdriver to ease the end and some washing up liquid. Felt like the jubilee clips were not really necessary!

 

[VicS]

Are you trying to fit the orange high pressure hose onto a low pressure Fulham nozzle? If so that is probably your trouble.
Use the black low pressure hose . It is not reinforced and stretches more easily.
Alternatively use a high pressure nozzle, which has shallow barbs rather tha the round ridges an bulbous end of a Fulham nozzle.

Do not use an oversize hose a nd try squashing it with a hose clamp to make a gas tight joint.

 

[PetiteFleur]

Update - I measured the bulbous nozzle and it measures 9.5mm diameter which strikes me as too large for the orange 8mm hose I tried to fit. A 10mm hose would have been an easy push fit. (The hose measured just under 8mm diameter) I did manage to fit the hose but was hard work, clamped the fitting in a vice, heated the hose end in boiling water, lubricated the nozzle end but still only managed to get it three quarters on.
I could use the black low pressure hose but I only seem to get to get the orange hose locally. I may try some 10mm hose later...

 

[WindyWindyWindy]

I think Spanish gas hose is 9mm.. But it's over a year since I last worried about it..

 

[Daydream believer]

Update - I measured the bulbous nozzle and it measures 9.5mm diameter which strikes me as too large for the orange 8mm hose I tried to fit. A 10mm hose would have been an easy push fit. (The hose measured just under 8mm diameter) I did manage to fit the hose but was hard work, clamped the fitting in a vice, heated the hose end in boiling water, lubricated the nozzle end but still only managed to get it three quarters on.

I cannot help wondering if leaving the circumfrence of the hose under such extreme tension might promote earlier failure than one might normally expect. Furthermore, that failure may be more difficult to see & rectify, if away from the availability of the same tools. Thus making a simple, temporary, repair, ie. cutting the cracked section off & re connecting, impossible