Coassiale PPs-Inox


"Coassiale PPs-Inox" system is composed of coaxial rigid modular elements with BA glossy finish externally, (on request in Ral) and are made with an internal wall in white polypropylene internal diameters 60 and 80, and thickness 0,4 mm standard in Aisi 304 for the external wall. The elements comply with the standards required by the CE marking according to the standard EN 14471. The space between the internal and the external wall allows ventilation-aeration and/or the supply of combustion air to the installed generator. The elements have a male-female "glass slip on coupling" with a triple-lip seal seat. For the outer wall, a mechanical seal joint is guaranteed through the use of the locking band. The system is certified to resist to acid condensation, and must be applied in plants (condensing gas) with maximum working temperature up to 120°C.


  • Ducts,
  • connecting flue pipes,
  • metal chimneys,
  • modular plastic flue systems,
  • for the evacuation of dry or wet fumes,
  • under pressure or depression,
  • from the appliance to the atmosphere.

Fuels and product use suitable for

Application of the product

Available diameters

60/100 - 80/125


Included and installed on D.60/100 and D.80/125 in the internal diameter; for the external one they are upon request. It is upon request for all further diameters.

Designation of the product

Product marking according to the European rule: CE 0476 EN 14471.

Logo Kiwa

Coassiale PPs-Inox

Description of the product

A: Outer wall stainless steel AISI 304 th.5/10
B: Inner wall polypropylene th.2 mm
C: Air space, ventilation or aspiration th.25mm
D: EPDM silicone gasket from (-90°C to +200°C)

Coassiale PPS Inox

Use with gasket

EN 14471: T120 – P1 – W – 2 – O00 LE E UO
EN 14471: T120 – H1 – W – 2 – O00 LE E UO
T120: Class of temperature (120°C)
P1 e H1: Class of pressure (P1: 200Pa) (H1:5000Pa)
W: Resistance and condensation tightness (W: Wet)
2: Resistance to corrosion (Yes)
O: Resistance to soot fire (O: no – G: yes)
00: Distance from combustible materials (0 mm)
LE: Positioning (only indoor and outdoor)
E: Reaction to fire (poor flame reaction properties)
UO: Protection