Different length "nozzles" 12mm end on monobloc tails

[shackec]

I am installing a new monobloc in a kitchen sink. Very straight forward job. However, the two "nozzles" which connect the 12mm thread to the flexible pipe are two different lengths. One is 18mm, the other is 34mm.
I have not come across this before. It looks as if I can use either tail for the hot or cold and installation is straight forward.

Am I missing something please?

 

[johnny2007]

They're different length so you can easily nip them with a spanner, although they recommend to tighten them only by hand.

 

[shackec]

I take it that you mean that the different lengths offset the arrises of the nuts so that that one doesn't get in the way of the other when attempting to nip. I think this sounds reasonable. I always tighten by hand so the use of a spanner never arises. Interesting that the designers believe that we might nip in spite of advice not to!
Thanks Johnny for the suggestion.
Regards. Charles

 

[johnny2007]

I take it that you mean that the different lengths offset the arrises of the nuts so that that one doesn't get in the way of the other when attempting to nip. I think this sounds reasonable. I always tighten by hand so the use of a spanner never arises. Interesting that the designers believe that we might nip in spite of advice not to!
Thanks Johnny for the suggestion.
Regards. Charles

Yes, I always thought they act like "do as I say, not as I do".

 

[aveatry]

Just fitted the same to replace my 20 year old tails which were the same nut position, finally it seems someone has thought about the design of somthing

 

[shackec]

I suppose, if you are going to nip, it would be as well to fit the short nozzle first!

 

[aveatry]

I suppose, if you are going to nip, it would be as well to fit the short nozzle first!

Yep, I "nipped" mine - couldn't help it hand tight does not seem right -- and who's hand though.

 

[shackec]

That's a good question; required torque is never mentioned. However, it seems to me, that the threads do not start to bite until the "o" rings are pushed in a little.When tightened by hand the two "o" rings are then both well inside the fitting ; and, presumably, these constitute the seal. I daresay any "hand-tight" torque will do.I've never had a problem but each time I have to resist the urge to snug up with a spanner!!

 

[aveatry]

I have to resist the urge to snug up with a spanner!!

Go on - you know you want to - go on its only a "nip"

 

[shackec]

Thanks, this made me chuckle! However, I'm in the "if it ain't broke don't fix it" brigade. A tiny nip may end up being a bite and I'll have a leak. I think I'll continue following the instructions.

 

[johnny2007]

I'm guilty of giving those tails a little tiny nip.
The hexagonal nut it's too tempting and I can't resist using my very tiny wrench part of a set of 3.
That's the only time it's ever used.

 

[shackec]

I wonder what other guilty secrets are going to be revealed?!

 

[aveatry]

A tiny nip may end up being a bite and I'll have a leak. I think I'll continue following the instructions.

Maybe those hand tight instructions are in place to cater for those who can not gauge a "nip" and therefore will damage the o-ring.