Product Description

The SPNP adapter for ceramic chimney flues is a precision-made insert crafted from black carbon steel, designed to protect the ceramic liner from both mechanical and thermal stress when connecting a steel flue pipe.   Its key feature is a heat-resistant fibre rope seal, which ensures a tight joint while compensating for the different thermal expansion rates of steel and ceramic — preventing cracks and damage to the brittle ceramic liner.

Key Features

• Protects ceramic chimney liners: Equipped with a high-temperature fibre rope seal that absorbs thermal expansion differences between steel and ceramic, reliably preventing cracking or damage during heating cycles.
• Safe and correct transition: Provides a technically correct and secure connection from a single-wall steel flue to a thick-wall ceramic chimney system.
• Pressure-tight SPNP connection (Class P1): The SPNP-side socket includes a silicone gasket, ensuring complete pressure-tight integrity on the boiler connection side.
• European quality and compliance: Manufactured from DC01 carbon steel and CE-certified, meeting all requirements of the European flue system standard EN 1856-2.

Technical Specifications

Important Limitations

• For pellet appliances only: Not suitable for wood-burning stoves, open fireplaces, or other solid-fuel boilers where flue gas temperatures exceed 200 °C.
• Ceramic flue compatibility: Verify that the internal diameter of your ceramic chimney matches the adapter’s fitting dimensions before installation.