Plastic conduit bending springs

[Toneyz]

Bending Springs for plastic conduit someone once said to me that you should tie on end loop and bring through spring it stops it deforming when pulled out.

 

[Pete999]

Bending Springs for plastic conduit someone once said to me that you should tie on end loop and bring through spring it stops it deforming when pulled out.

Done more Plastic conduit jobs than I like to remember, I always tie a length of heavy gauge rope or some single cable to the end, never had any deformation of the spring, well hardly ever only when some Muppet gets the spring stuck due to a sharp bend.

 

[Leesparkykent]

I feed a bit of 1.5 single through the spring so when you pull it back it's not stretching it.

 

[telectrix]

a bit of washing upliquid helps. keep head out of way when pulling spring out.

 

[Deleted member 9648]

Depends on the conduit as well. Had some HG plastic from a local supplier we don't often use that split the first bend I did, wrecking the spring. Trip back to wholesaler to collect another spring, back on site first bend and the sod split again. Took the whole lot back to the wholesaler and replaced with gear from another supplier. No further problems but well over an hour wasted.

 

[The Ghost]

And on the matter of 20mm white conduit, don't buy screwfix version the walls are to thin internally and the pipe kinks when bending.

 

[Toneyz]

I feed a bit of 1.5 single through the spring so when you pull it back it's not stretching it.

Yes this is what I am sure someone told me a good time ago (it may of been Pete) I said this to my mate at work said was rubbish everyone I've seen have had it ties on to the loop only.

 

[Toneyz]

a bit of washing upliquid helps. keep head out of way when pulling spring out.

Thanks for that Tel I forgotten about that one just lube the spring slightly helps it from rusting.

 

[dinger809]

As the others said, but the main thing to remember, is just don't make the bend too sharp. That will always kill springs

 

[Pete999]

As the others said, but the main thing to remember, is just don't make the bend too sharp. That will always kill springs

Why use a spring???

 

[westward10]

I have had the same bit of 1.0 T&E tied to mine for probably the last 20 years. Also handy to know where you want the spring placed in the tube by measuring then bending your wire/cable to the top of the tube.

 

[Toneyz]

I have had the same bit of 1.0 T&E tied to mine for probably the last 20 years. Also handy to know where you want the spring placed in the tube by measuring then bending your wire/cable to the top of the tube.

Another good tip thanks It's not that not being able to do conduit it was I remember someone saying about removal of spring thanks everyone.

 

[telectrix]

spring? it's almost autumn now.

 

[Leesparkykent]

I have had the same bit of 1.0 T&E tied to mine for probably the last 20 years. Also handy to know where you want the spring placed in the tube by measuring then bending your wire/cable to the top of the tube.

have you sleeved them brown/blue?

 

[Rpa07]

Another good tip thanks It's not that not being able to do conduit it was I remember someone saying about removal of spring thanks everyone.

When I got my first spring recently, I remembered reading that from a member on the forum so down the middle and tied on the loop with a 2.5 CPC. Seems like a better way to me but without scientific reviews! there will be no proof one way or t'other!

 

[telectrix]

i'm still pondering on what use a plastic spring would be.

 

[telectrix]

Why use a spring???

at that rate he might just manage 10 bends / shift.

 

[The Ghost]

I don't usually find the end of my spring disappears and I put a piece of metal through the circlet at the end of the spring and twist as I pull out. I never put the spring that far down the conduit. I just use straight couplers to get the length I want.

 

[drzsta]

And on the matter of 20mm white conduit, don't buy screwfix version the walls are to thin internally and the pipe kinks when bending.

This, I was cursing on every bend when the s***t they supply creased. Sold as 'heavy gauge' but the walls are paper thin.

 

[7029 dave]

I feed a bit of 1.5 single through the spring so when you pull it back it's not stretching it.

That's how I do it Lee, loop it through , using singles stranded, piece of red was on my spring for years.

 

[FUSEServices]

I'm really surprised this hasn't been mentioned. All you have to do is not send the spring that far down if you are forming a sharp bend, then as you withdraw, place a screwdriver through the loop on the spring and turn it clockwise. This will tighten the spring making it thinner and it will pop out with ease.

I don't think I will be P@@ about using this method though. What a faf!

 

[FUSEServices]

Oh, and as for sending a pull wire right through the spring... Don't! ;-)

 

[telectrix]

Oh, and as for sending a pull wire right through the spring... Don't! ;-)

why not? something i've never tried but....

 

[Deleted member 93172]

When I got my first spring recently, I remembered reading that from a member on the forum so down the middle and tied on the loop with a 2.5 CPC. Seems like a better way to me but without scientific reviews! there will be no proof one way or t'other!

I think that might have been me, always have used that method for many years.

 

[Deleted member 26818]

If you feed the wire through the length of the spring, it will be harder to remove the spring.

 

[Deleted member 93172]

Each to their own method

 

[telectrix]

not tried the hot sand method. too slow for my liking, but might be worth a try on a job with no pressure.