Halton/Ravenscroft Fire Dampers

Builders and architects have long been searching for solutions to meet the current design demands for slab-to-slab fire rating in non-fire rated shafts. The Ravenscroft fire damper provides a range of sizes not previously available. All dampers are compliance tested by Brandz for AUS/NZ building codes and by Warrington Fire Research for overseas compliance. The dampers were originally developed in Finland by Oy Halton Group and are now made under licence by Ravenscroft.

Ravenscroft BSD-PW Fire Damper The Ravenscroft BSD-PW is a combined fire and balancing damper which has been specifically developed for installations through plasterboard walls. Extensions and flanges made from galvanised steel allows for use with various wall thicknesses. Tested and approved for plasterboard walls with fire ratings up to two hours, it incorporates a fire rated ceramic insulation blanket encapsulated with galvanised steel. Duct access panels are not required because this damper can be easily inspected and reset using the indicator handle from outside the duct.

Ravenscroft BSD-C Fire Damper A combined fire damper and fire rated balancing damper for concrete floors and walls. Similar to the BDS-PW damper but without insulated ceramic sheathing and also without a metal sliding flange. Satisfies AS1530.4 -1990 for at least two hours. Compliant to AS1682-1990 Parts 1 and 2 as well as AS1530.4 -1990 as the acceptable solution. The size range from 100 to 500 mm diameter provides a range of installation options never before offered. The thermal brass fuse (pictured above) can be reused up to four times. Standard fuse rating is 74˚ Celsius, with other ratings available. This damper can be cement grouted in situ or installed with Promat fire rated foam Promaseal IBS strip. For aggressive environments this damper is available in a stainless steel version. Easily inspected and reset using the indicator handle (pictured above) from outside the duct.