Ducting fire protection

Details Ducting fire protection Ducting fire protection

1976-12-13

1979-03-13

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

169 56, F16K 1738

Patent

active

041436709

ABSTRACT:
A length of fiberglass duct with a thermoplastic sleeve positioned within the duct as a liner, with the sleeve fixed to the duct at the downstream end of the sleeve. Flames or high temperature fluids moving through the duct soften the thermoplastic sleeve and cause the sleeve to collapse blocking further movement through the duct.

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