Kratki Adjustable Coaxial Pipe 100/150


The acid-resistant double-wall pipe was designed to remove fumes from gas-fired appliances, adjustable in the range of 390-640 mm.

SKU EL/REG100/150/BI-GAS Category Brand:


The double-wall air-flue pipe of a concentric system made of acid-resistant sheet metal is designed for removing fumes from gas-fired devices.

BI-GAS is a selected and hydraulically optimized solution that also has self-cleaning properties. The system works under vacuum (it is not equipped with gaskets).


  • diameter: 100/150 mm
  • length: adjustable in the range of 390-640 mm
  • assembly: horizontal assembly only
  • temperature resistance: 600°C
  • equipped with fastening clamps
  • tested at CERIC
  • material: stainless steel (austenitic) 1.4404 inside, (316L, L50), 1.4301 external L20.

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Kratki Adjustable Coaxial Pipe 100/150