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TSFC Furick Freddicello Trailing Purge System
  • TSFC Furick Freddicello Trailing Purge System
  • TSFC Furick Freddicello Trailing Purge System
  • TSFC Furick Freddicello Trailing Purge System
  • TSFC Furick Freddicello Trailing Purge System
  • TSFC Furick Freddicello Trailing Purge System
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Rapid Ref : TSFC  

Furick Freddicello Trailing Purge System
TSFC

£114.00  EX VAT
 Buy in 3 easy interest free payments of £38.00† with

Genuine Furick Freddicello Trailing System

Mounts on any Furick cup from Fupa 12 to SSBBW.

  • Bendable and adaptable to different welding situations and tube diameters
  • A neat swivel design allows for easy aiming
  • Removeable pods with the ability to use one sprayer if the operator desires


Recommendations from the manufacturer:

  • Use a separate gas meter
  • 20-40 CFH
  • Taper the system down to your workpiece. It is not going to shoot gas like your cup does in a straight spray.  At the cup side it should be about even with the end of the cup, then angle the system as it gets away from the cup down to your workpiece
  • DO NOT lay silicon body on hot material
  • DO NOT cut or change the lengths of tubes or hoses. Gas will flow faster in the path of least resistance so a shorter path will get more gas
  • Try to allow the system to not be pulled or in tension as you use it. Everything is calibrated to use as it sits in free form
  • DO NOT remove screens as these are inserted in a certain way

Related Items

Trailing Shields FAQs

Practical answers on using trailing shields and cups to protect hot TIG welds from the air.

What does a trailing shield do on a TIG torch?icon-minus-redicon-plus-red

A trailing shield is a gas attachment that fits behind the torch and supplies extra argon over the weld and the hot metal as it cools. The normal gas cup only covers the arc and the molten pool, but some metals stay hot enough after the torch has passed to react with the air.

The shield keeps an inert atmosphere over that cooling zone until the metal is cool enough not to pick up oxygen. It does this with its own gas supply, separate from the one feeding the torch.

Which metals need a trailing shield?icon-minus-redicon-plus-red

Titanium is the main one. TWI explains that titanium absorbs oxygen and nitrogen when hot, which makes it brittle, so the cooling weld and heat-affected zone need extra protection from a trailing shield. Other reactive metals can be similar.

Stainless steel is more forgiving, but oxide or heat tint on the surface damages corrosion resistance, so a trailing shield can help give brighter, cleaner welds where appearance or hygiene matters. Always check the welding procedure for your material and application.

Does a trailing shield replace back purging?icon-minus-redicon-plus-red

No. A trailing shield protects the face of the weld as it cools, but the back (root) side of a full-penetration joint also needs protecting. TWI notes that the back face of a titanium weld needs a gas purge as well, and the HSE describes back purging with inert gas for stainless steel and other corrosion-resistant metals.

Use the shield for the top side and a purge for the underside, with a vent so pressure cannot build up. Remember that purge gas is also an asphyxiation risk.

What do the colours on a titanium weld tell me?icon-minus-redicon-plus-red

Colour shows how much air reached the hot metal. TWI describes perfect shielding as bright and silvery, followed by light straw and dark straw, then dark blue, light blue, grey and finally powdery white as contamination increases.

Light and dark straw are normally acceptable, dark blue may be acceptable depending on service conditions, and light blue, grey and white are not. Colour alone is not a reliable guide on multi-pass welds, because contamination in earlier runs affects later ones. Your specification decides what you can accept.

See all 6 questions for this category

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