System description - SPIRAL®System Round Ventilation Ducts and Fittings

Given the high costs of air treatment and a boom in the HVAC sector, ventilation systems must satisfy very stringent requirements. As a result, it is essential to ensure that duct connections are sufficiently leak-proof to keep the costs of operation at economically viable levels. To tackle this problem successfully, ALNOR Systemy Wentylacji Sp. z o.o. has developed a new end-to-end SPIRAL^®system.

The SPIRAL^®system is a proven system of quick-coupled spiral ducts and fittings provided with factory-installed EPDM gaskets. The gaskets provide leak-proof and durable joints between SPIRAL®system components. The system components are available in a full range of diameters from Ø80 to Ø1250 mm. SPIRAL system meets the requirements of PN-EN 12237 for air tightness class D (Certificate no. 0103/07).

The high-quality of workmanship and factory-installed rubber gaskets enable easy and quick assembly of ventilation ductwork. Ductwork based on SPIRAL^®system components guarantees long and leak-proof service life and requires no additional sealants.

Application advantages

• Quick and easy installation.
• The gaskets are factory-installed without play to ensure their proper seating when connections are made.
• This allows accurate mounting of fittings without the risk of breaching the seal or air leaks.
• An environment-friendly Installation method which requires no silicones containing toxic solvents that could evaporate into the ductwork.
• The system can be installed in all weather conditions.
• Temperature resistance: -30˚ to +100˚C.
• Maximum operating vacuum: up to 3000 Pa.
• Maximum operating pressure: up to 5000 Pa.
• Internal and external manufacturing control.

• An aesthetic finish which is particularly important for exposed systems.