fittings for flexible conduit

[Jupiter01]

I am looking to use this for an alarm cable.

It will be easier to push through a route that has some obstacles. However, I do need to tee off in places and also use two of these in different sections.

Will it just slip over these type of fittings or do I need to use some sort of adapter?

Thanks in advance.

 

[Harry Bloomfield]

They need an adaptor, which is 20mm threaded. So you will need an adaptor, from 20mm, to adhesive conduit, then the 2way box.

 

[Jupiter01]

They need an adaptor, which is 20mm threaded. So you will need an adaptor, from 20mm, to adhesive conduit, then the 2way box.

One of these?

https://www.screwfix.com/p/deta-tte-male-conduit-adaptors-20mm-black-2-pack/351vt

 

[Harry Bloomfield]

One of these?

https://www.screwfix.com/p/deta-tte-male-conduit-adaptors-20mm-black-2-pack/351vt

Nope. Go into your friendly local SF, explain what you are attempting, and they will advise.

 

[SUNRAY]

Personally I have never had a problem with solvent welding plastic flexible conduit directly into fittings...

However I see this is described as 21.5mm OD and as such is the first time I've come across it being bigger than rigid.

They need an adaptor, which is 20mm threaded. So you will need an adaptor, from 20mm, to adhesive conduit, then the 2way box.

This is the correct adapter

and quite likely the threaded male thread on them will solvent weld into any conduit fitting such as these

 

[Jupiter01]

Personally I have never had a problem with solvent welding plastic flexible conduit directly into fittings...

However I see this is described as 21.5mm OD and as such is the first time I've come across it being bigger than rigid.

This is the correct adapter View attachment 358341

and quite likely the threaded male thread on them will solvent weld into any conduit fitting such as theseView attachment 358342

Can a corrugated flexible duct be squeezed directly into a conduit fitting?

 

[Taylortwocities]

Personally I have never had a problem with solvent welding plastic flexible conduit directly into fittings...

However I see this is described as 21.5mm OD and as such is the first time I've come across it being bigger than rigid.

This is the correct adapter View attachment 358341

Yes. The description of the flexy conduit actually tells our friend the part he needs. I despair sometimes...

 

[Taylortwocities]

Can a corrugated flexible duct be squeezed directly into a conduit fitting?

NO!! Read the product description.

Oh look. Obviously you need help.

See that last sentence?

Of course, you could always bodge it with some BluTac or a spare bit of chewing gum......

 

[Murdochcat]

Why use flexible conduit ?

 

[Taylortwocities]

Why use flexible conduit ?

Because it's flexible, maybe?

 

[Murdochcat]

Because it's flexible, maybe?

Hum, will sag and look naff

 

[DetlefSchmitz]

Hum, will sag and look naff

Not, for example, under a suspended floor.

 

[Murdochcat]

Not, for example, under a suspended floor.

No but why bother under a floor ?

 

[SUNRAY]

Th only "Why" I have in this whole thread is

 

[333rocky333]

Why not use 20mm threaded galv boxes and lids, or easier use threaded plastic wiska boxes and make your own junctions