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Copper WIT vs Flexi WIT

 
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John Bushell



Joined: 02 Jun 2011
Posts: 4
Location: Jakarta

PostPosted: Thu Jun 02, 2011 4:32 pm    Post subject: Copper WIT vs Flexi WIT Reply with quote

Hi y'all,

I am wondering if anyone out there has used both types of WIT and can give me an opinion on the virtues of each.

My goods yard is in close proximity to where the lever frame will be and I am tending towards the flexible type. Reasons being ease of carrying it home on the aircraft (I live in Jakarta), ease of fitting and price.

Any comments or good reasons I should go for the annealed copper type?
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John
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modadmin
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Joined: 15 Jan 2004
Posts: 283
Location: Australia

PostPosted: Sat Jun 04, 2011 6:36 am    Post subject: Reply with quote

John,

For short runs, Flex-wit is certainly suitable.

As to carrying on the plane, the copper tube is rolled as supplied and would be as easily transported.
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John Bushell



Joined: 02 Jun 2011
Posts: 4
Location: Jakarta

PostPosted: Sat Jun 04, 2011 4:14 pm    Post subject: Reply with quote

Thanks MA
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signalman
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Joined: 24 Mar 2004
Posts: 16
Location: Port Macquarie, Australia

PostPosted: Sat Oct 08, 2011 9:08 pm    Post subject: Copper WIT vs Flexi WIT Reply with quote

Is there a maximum length of run for each of theses products?

Which is more suited to long runs?

Cheers,

Ian
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modadmin
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PostPosted: Mon Oct 10, 2011 10:51 am    Post subject: Reply with quote

We have tested flex-wit operating a turnout via 5m of tube. The run included a gentle 90-degree turn (approx 250mm radius) at the lever frame and a similar reflex turn at the turnout. It works perfectly well. There was no support for the tube other than at each end.

As a general principle, copper is likely to give better long-range performance that flex.
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signalman
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Joined: 24 Mar 2004
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Location: Port Macquarie, Australia

PostPosted: Sun Jun 30, 2013 8:43 pm    Post subject: Reply with quote

What is the minimum bending radius that Flex-wit can be curved to? In the WIT General pdf, a minimum radius of 75mm is mentioned for the copper tube. Is this the same for Flex-wit?

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Ian
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modadmin
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PostPosted: Sun Jun 30, 2013 11:22 pm    Post subject: Reply with quote

The recommendation is still 75mm, although, if the rest of the route is not complex, a single sharper bend will probably be workable.
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