COMPLETE SPIRAL JOINT UNIT – 710MM – Doby Verrolec

COMPLETE SPIRAL JOINT UNIT – 710MM – Doby Verrolec

• Ranges from 400mm – 900mm in size.
• Suitable for straight seemed or spirally wound ducts.
• Reduces fabrication and installation time compared to RSA Flanges.
• Easy removal of duct sections for cleaning or maintenance purposes .
• Accuracy of production ensures minimum efforts to fit flange ring to duct.
• Easier installation in confined spaces when compared to RSA Flanges.
• Independently tested by BSRIA, proven to work within requirements of UK HVCA Specification DW144.
• A sealant pocket is rolled into the profile allowing effective sealing of ring to duct. Permanent non-setting, non-toxic sealant can be injected into the profile if requested.
• Quick closure and release latch with safety wedge available up to 900mm diameter for rapid removal of duct sections.
• Manufactured from Galvanised Mild Steel for corrosion resistance, avoids need for secondary painting. Also available in 304L & 316L Stainless Steel.

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