Speedfit Pipe Bending

[Phillay]

Hey, has anyone used the black cold forming bends that John Guest Speedfit supply?

Running a bathroom refurb in Speedfit. Only used it a handful of times with a previous 'builder' who believed you could twist speedfit all over the place, not pipe clip it for support and use connections like they'd gone out of fashion! So I'm trying to do a better of job of things, following JG's install guide.

I need to do some 90 deg bends from under the floorboards up to sanitary ware and was going to try these, and securing them in place (save another joint). My only question is do you have to bend the pipe with machine benders, then secure it in the cold forming bend? or can you just manipulate the pipe into the bend straight away?

I'm using BPEX 3m lengths and obviously don't want to force it/cause a kink in the pipe.

Advice much appreciated!

BTW I'm asking as I've searched JG site and the internet and can't find the answer anywhere, ...so it's probably obvious! haha.

 

[SimonG]

No. Use coil rather than 3m lengths.

 

[Koogatubac]

I miss working with plastics, its sooo easy!!

I worked with a lad and he was bending speedfit with his bender and it actually stayed on the 90*

 

[TomLane]

I miss working with plastics, its sooo easy!!

I worked with a lad and he was bending speedfit with his bender and it actually stayed on the 90*

Seriously?!?

Never heard of that before!

Might have to get the benders out later & give it a go.


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[SimonG]

That'll bend it tighter than the recommended radius, wouldn't be covered under manufacturers warranty.

 

[Phillay]

That's where these cold forming bends and supposed to come into play... they reduce the bend radius (similar to a pulled bend), stay on the pipe and get screwed into place and all under John Guest warranty.

Just don't know if it's the done thing to bend the pex pipe by hand to fit into the fixing or bend it with a pipe bender first so. Think I'll e-mail JG tech advice to find out!

 

[TomLane]

That's where these cold forming bends and supposed to come into play... they reduce the bend radius (similar to a pulled bend), stay on the pipe and get screwed into place and all under John Guest warranty.

Just don't know if it's the done thing to bend the pex pipe by hand to fit into the fixing or bend it with a pipe bender first so. Think I'll e-mail JG tech advice to find out!

I would be interested to know there response.


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[dancinplumba]

You just bend it round the former and it is held in place by the former......simples
Just use elbows

 

[PlumbBobBob]

You just bend it round the former and it is held in place by the former......simples
Just use elbows

run plastic under floors and come up in copper. it looks much better.

 

[Phillay]

Hey guys,

E-mailed John Guest Technical Department and for anyone interested, there response was as follows:

"Good morning and thank you for your enquiry. We would recommend that you use a pipe bender to prepare the pipe work for use with a cfb. This will make things easier for you and will lessen the chance of kinking the pipe.
Bpex pipe comes in straight lengths and coils, bp only comes in coils. The cfb is for use with either."