Alu Quattro watertight inspection hatch

12.5mm Alu Quattro watertight access hatch

• Tested for smoke tightness to DIN EN 1634-3 and air permeability to DIN EN 1026 and DIN EN 12207.
• The test results are in the best category for
  classification (windows slot, category 4).
• Sound insulation tested to DIN EN ISO 10140-3.
• Measured sound reduction is 34.8 dB (1 x 12.5 mm).
• Ideal for rooms where air supply or exhaust is via a ceiling cavity
• Waterproof up to an air pressure of 600 Pa (= wind speed of approx. 100 km/h)
• Particularly suitable for operating theatres or hygiene-critical areas requiring special air management (overpressure/depression).
• Particularly high tightness thanks to a hollow gasket
• Prevents the escape of cold smoke, thus protecting against the risk of poisoning
• Also available in a special version with cemented plaster panels

25 mm Alu Quattro watertight access hatch

• Acoustic attenuation 30.5 dB
• Tested for smoke tightness to DIN EN 1634-3 and air permeability to DIN EN 1026 and DIN EN 12207.
• The test results are in the best category for
  classification (windows slot, category 4).
• Sound insulation tested to DIN EN ISO 10140-3.
• Measured sound reduction is 30.5 dB (2 x 12.5 mm).
• Ideal for rooms where air supply or exhaust is via a ceiling cavity
• Waterproof up to an air pressure of 600 Pa (= wind speed of approx. 100 km/h)
• Particularly suitable for operating theatres or hygiene-critical areas requiring special air management (overpressure/depression).
• Particularly tight seal thanks to hollow gasket
• Prevents the escape of cold smoke and thus protects against the risk of poisoning
• Also available in a special version with cemented plaster panels