Key Features
The OSTRO roof vent achieves a 140-degree blade opening angle, delivering a significantly larger aerodynamic free area than standard 90° or 100° designs. This makes it particularly well-suited to single-shaft systems where vent sizing is constrained by structural or architectural requirements.
Certification
The OSTRO is certified to BS EN 12101-2, the European standard for natural smoke and heat exhaust ventilators. CE marking and third-party test evidence are available on request from AOV Direct's technical team.
Control Options
The OSTRO can be controlled via the O-Range panel range or via third-party BMS/fire alarm interfaces. Both 24V DC and 230V AC actuator options are available. Manual override is provided as standard via a breakglass unit at each vent.
Installation
The OSTRO is available in standard sizes to suit common curb profiles. Custom sizes are available on request. Installation should be carried out in accordance with the manufacturer's installation guide and the requirements of BS 9991 and Approved Document B.
Ordering
The OSTRO is held in stock at AOV Direct's Poole warehouse for next-day despatch on standard sizes. Call 01202 725 677 or email [email protected] for pricing and availability.
Need Expert Advice?
Our engineers are available to advise on compliance and product selection.