Home > Companies > Bilco UK Ltd > ACDSH Automatic Fire Ventilator

A range of acoustic fire ventilators designed to guard against noise intrusion and at the same time provide the security of dependable automatic venting in the event of a fire.

Standard product features

Hold/ release mechanism:

Patented Thermolatch® II positive hold/ release mechanism, which ensures reliable vent operation when a fire occurs and prevents inadvertent opening of the covers caused by wind, building vibrations or other factors.


The latch is equipped with a 74°C fusible link for automatic operation. In the event of a fire, heat breaks the fusible link, allowing powerful lifting mechanisms to open the vent covers instantaneously.


Pull handles are provided for interior or exterior manual operation and heavy duty shock absorbers ensure smooth opening and eliminate the possibility of operational, roofing or structural damage

Acoustic performance:

The vents carry an STC-45 and OITC-37 sound rating and are suitable for concert halls, theatres and other applications.




Galvanised steel.





Available in eight standard sizes, consult with Bilco UK for non standard sizes.

Accessories, guards, finishes and fixings:

Consult with Bilco UK for availability, recommendations and details, and to obtain samples.

NBS Specification

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This product is associated with the following NBS Create clause:
90-45-80/370 Smoke and heat exhaust control panels

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Bilco UK Ltd


+44 (0)1284 701696

Product reference

[Automatic Fire Ventilator Type: ACDSH4848]
1220 x 1220 mm. Weight: 363 kg.
[Automatic Fire Ventilator Type: ACDSH4872]
1220 x 1830 mm. Weight: 462 kg.
[Automatic Fire Ventilator Type: ACDSH4890]
1220 x 2290 mm. Weight: 533 kg.
[Automatic Fire Ventilator Type: ACDSH4896]
1220 x 2440 mm. Weight: 558 kg.
[Automatic Fire Ventilator Type: ACDSH6060]
1520 x 1520 mm. Weight: 528 kg.
[Automatic Fire Ventilator Type: ACDSH6096]
1520 x 2440 mm. Weight: 701 kg.
[Automatic Fire Ventilator Type: ACDSH66144]
1680 x 3660 mm. Weight: 1032 kg.
[Automatic Fire Ventilator Type: ACDSH7272]
1830 x 2830 mm. Weight: 685 kg.


[As supplied]
[___ x ___ mm]

Finish as delivered

[ ______ ]


[Solenoid operation]
[Motorised operation]
[Manual winch operation]
[Smoke detector actuation]

Accessories/ Special features

[ ______ ]


[ ______ ]

Manufacturer details

Park Farm Business Centre,
Fornham St Genevieve,
Bury St Edmunds,
Suffolk, IP28 6TS
Tel +44 (0)1284 701696
Fax +44 (0)1284 702531
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