Noise control gates
The sound insulation of doors, or moving room closures in general, depends essentially on the tightness within the area of the hinges. For this reason test certificates concerning the sound insulation of a door leaf are only as good as the testing of a car at a standstill - they do not say anything about the suitability in the fitted state during actual use. Besides a corresponding weight per unit area Contrast Akustik noise control gates therefore provide a rebate seal fitting perfectly close all round which also prevents the passage of sound in the threshold area.
Handling of the doors supplied by us is extremely practicable as a result of the precision manufacture and high stability. By a single pressure closure which, depending on the size of the door, moves one or more worms and rolling gudgeons, the closing device can be actuated without excessive exertion. The weighted sound-insulation index for the Contrast Akustik noise control gates amounts to 50 dB. In the case of a version as a sound interlock / sluice, two doors one after the other, values greater than 60 dB can be achieved. The above-mentioned special versions can reduce the weighted sound insulation index.
| Technical equipment |
| |
Edge and/or pressure seal arranged all round at two levels |
| Closing device with additional pressing-down pressure by raising the latch pre-aligned for profiled cylinder |
| Double-shell steel door leaf with high stability and sound-insulating special inlay |
| Groove threshold or ramp threshold can be driven over |
| Hinges mounted in ball bearings for easy running |
| Steel surface primed for paint applied by the customer |
| Latch fittings of special steel |
| Case as corner, containing or upright, standing pillar versions |
| Special equipment |
| |
Version T30 or ART T30 |
| Anti-panic lock or anti-panic handlebar |
| Thresholds that can be driven over for wheel loads greater than 200 kg |
| Door closers and closing follower controller |
| Glazing |
| Dimension W / H up to 5000/5000 mm as two-leaf wing version |
