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New link seals achieve two hour fire rating

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article image Model ‘T’ Link-Seal can seal pipe penetrations through concrete structures

Projex Group announces that the Model ‘T’ Link-Seal series of modular seal systems has just attained a two-hour fire rating according to the Australian Standard 1530.4 and 4072. 

Model ‘T’ Link-Seal can seal pipe penetrations through concrete structures, providing protection against flames, smoke, noise, gases and water, even when exposed to extreme temperatures. Composed of a high temperature silicone rubber block with specially designed carbon steel pressure plates and nut and bolt assemblies, the modular seal system is mainly used when a fire rating is required in buildings, fuel and oil bunds or water tanks.

The testing and certification method

The tested assembly comprised of a two-metre long section of 275mm diameter steel pipe with 10mm thick wall penetrating through a core hole in a 200mm thick precast concrete block. The pipe penetrated 500mm into the furnace from the block and was blanked off with a welded steel end plate, which was 300mm x 300mm x 6mm thick on the fire side. Installed in the annular space between the steel pipe and the penetration through the concrete, the tested Model ‘T’ Link-Seal maintained integrity performance for 132 minutes without the formation of gaps or fissures.

Exova Warrington Fire issued the two-hour fire rating certificate for the Model ‘T’ Link-Seal on the 3rd of September 2013.

Jim Kornmehl, director of Projex Group explains that the 2-hour fire proof certification showcases the quality and efficiency of the Model ‘T’ Link-Seal sealing system, and adds great value to their Link-Seal product range. He adds that all engineers and project managers can now confidently specify the Model ‘T’ Link-Seal when it comes to seal pipe penetrations within scenarios of extreme temperatures.

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