Trickle ventilation, for use on PVC-U, timber and aluminium windows.

• Suitable for use in domestic or non-domestic installations
• Suitable for retrofit applications, over an existing slot.

Surface-mounted, noise-reducing acoustic trickle vent.

The SF Xtra Sound Attenuator ventilator is an acoustic slot ventilator which provides high levels of sound attenuation compared to similar ‘acoustic’ products, in a compact size.

The SF Xtra Sound Attenuator vent can be purchased in a number of combinations based on different sizes of inner (ventilator) and outer (canopy). Combinations can be chosen depending on the sound attenuation requirement and can achieve up to Dn,e,w (C;Ctr) = 44 (-2;-3) dB when the vent is open.

The product is a cost effective method of reducing incoming noise in situations where conventional slot ventilators are unable to assist with acoustic issues.

Features and benefits:

• Cost effective sound attenuating (acoustic) trickle ventilator.
• Independently tested by Sound Research Laboratories in accordance with BSEN20140-10:1992, ISO140-10:1991.
• 2500 mm² EA and 5000 mm² EA versions available.
• Vent sizes available: V25, V50, V75 and canopy sizes: C25, C50 and C75.
• Can provide up to 44 Dn,e,w attenuation, depending on combination.
• Suitable for use in domestic or non-domestic installations.
• Suitable for retrofit applications, over an existing slot.
• Available in a range of combinations to suit different acoustic specifications.
• Fits over a Trimvent Select, Trimvent 4000 Hi Lift or Trimvent Select Xtra slot size.
• Supplied with SF Xtra Ventilator and/or SF Canopy fitted (HF Canopy for 5000EA version).
• High-performance gasket combined with compression closing action improves sealing in adverse conditions.
• Can be mounted to deflect air upwards or downwards.
• For use over a 13 mm slot.
• Special paint finishes available.