WCO Dual Purpose Ventilator

WCO can provide extract ventilation as well as allow the entry of natural daylight for most kinds of industrial and commercial buildings. Its top section provides maximum ventilation and this can also be used for emergency smoke extract, although it is not certified as a smoke ventilator. Two controllable side dampers provide day to day ventilation when it is raining.

  • Wide range of applications - WCO can provide both day to day and smoke control ventilation, although it is not certified as a smoke ventilator.
  • Polycarbonate versions allow the entry of natural daylight. There are pneumatic, electric or hand controls and a wide range of louvre types, accessories and finishes.
  • High performance - WCO is aerodynamically efficient and has a high resistance to weather.
  • Easy to install - WCO is delivered fully assembled to site and may be installed at any angle from the horizontal to 45º. It has a wide range of base profiles to suit all sheeting, curb or glazing applications.
  • Durable - WCO is manufactured from tough, corrosion resistant aluminium alloy, grade 3005 in accordance with EN573-3, with stainless steel fixings. Louvres pivot on double nylon UV- resistant bearings. It requires very little maintenance.
  • Quality of manufacture - WCO is manufactured under the ISO 9000 quality standard. Each unit is given a functional test before despatch.
  • Design service- Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of WCO systems.


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