Smoke Ventilators (SRHE) / Automatic Opening Ventilators (AOV's)
Meeting the key requirements of EN12101 Standards

Introduction | Hidden Actuators | 140° AOV Opening | SRHEP Options | Pressure Sensitive Edges

Surespan SRHE smoke ventilators are operated by a heavy-duty 24v electromagnetic solenoid switch or a 24v DC Actuator working in tandem with the pneumatic gas springs to open the double skinned aluminium lid. The ventilator is designed to be wired direct into the Fire Alarm or Building Management System by others.

- GWP (Global Warming Potential) of 3.

- ODP (Ozone Depletion Potential) of 0.

An SRHGE glazed option is also available.

The Smoke ventilator is offered with a control box including transformer, battery charger, and battery back up system to cover in case of emergency power cuts.

SRHE

SRHEP

Roof Hatch with Electrical / Pneumatic Operation.

Surespan can manufacture SRH Roof Hatches and SRHE Smoke Ventilators to open and close in a vertical operation.

SRHEI50

SRHEI

Electromagnetic

Roof Hatch with Electromagnetic Operation.

Surespan can manufacture SRHE Smoke Ventilators to be held shut by a 24v electromagnetic solenoid switch, which can be wired into the FAS or BMS system for opening. The cover is manual closing as standard. A fully electrically operated version is also available. Please contact Surespan Sales for further details.

See SRHEI Specification for further information and Electrical Options for wiring diagrams.

AOV's with Hidden Actuators

Hidden Actuator Box Sections

SRHG glazed roof hatches and AOV's can be manufactured with the actuators hidden from below.

140 Smoke Vent Opening

Surespan Smoke Ventilators are available with as 140 opening. Meeting the key requirements of approved document B, BS9999 and European Standards enshrined in EN12101.

A well known weakness of natural ventilation is that fire smoke tends to enter the escape or entry routes before leaving the building.

Surespans 140 Smoke Vent is designed to stay open at a 140 degree angle to ensure that smoke, harmful gases and heat are diverted away from the opening and cannot be blown back into the building by wind.

For our product to meet key requirements of EN12101 regulations, we ensure the cover opens to its fully open position within 60 seconds of activation, in order to disperse smoke away from the building as quickly as possible.