The fire-rated range reaches 41 dB of sound insulation on the HTB-S7 and 60 minutes of fire resistance on the HTB-S8 and HTB-S9, certified to European, Swiss and US standards.
Maximum soundproofing
41 dB, on the HTB-S7 (30 minutes), at 1000 × 2400 mm or 1150 × 2760 mm
Maximum fire resistance
60 minutes, on the HTB-S8 (double leaf 1100 + 1100 × 2400 mm, 30/38 dB) and on the HTB-S9 (1250 × 2400 mm or 1250 × 2760 mm, with no dB figure stated)
Certified range
Eight versions: HTB-S2 (45 minutes, 30 dB), HTB-S3 (30 or 45 minutes, 30/37 dB), HTB-S4 (30 minutes, 30/37 dB), HTB-S7, HTB-S8, HTB-S9, and the US UL 20 S, UL 30 S and UL 45 S; maximum certified height 2760 mm
Certifications
ISO / VKF / UL, plus UNI EN 1634-1:2014 and UNI EN ISO 717-1:2013 in Europe, and UL 10C, UL 1784, NFPA 252 and ASTM E84 in the USA
Frame
A Tecnosecret frame, integrated into the wall panelling flush on the pull or push side
Hinges
Simonswerk concealed hinges rated for a maximum load of 80 kg per hinge
Fire seal
A patented thermo-expanding gasket (patent VI2001A000063) hidden under the frame veneer, requiring no maintenance
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