
140° opening single-leaf natural smoke ventilator up to 2.5m² GFA. For flat and pitched roofs. EN 12101-2 certified with 24V actuator. Vent Trade.
- up to 2.5m²
- Roof 140° opening
- 24v
- Poly, insulated or dome

Certified to BS EN 12101-2 with Re 1000 smoke extraction reliability. Opens to 90° delivering up to 1.68m² geometric free area at maximum size for rapid smoke dispersal.
Suitable for roof pitches from 15° to 90° with 17 standard size configurations. Aerodynamic free area from 0.29m² to 1.01m² depending on selected dimensions.
B 300 resistance to 300°C. Wind load WL 3000 and snow load up to SL 2741 depending on pitch and size. Vacuum-impregnated pine resists rot and decay.
Opens to a full 90° for maximum smoke dispersal. Chain link actuator ensures fast, reliable operation in under 60 seconds.
4mm toughened outer pane, 14mm argon-filled steel spacer, and 6.8mm laminated inner pane with anti-burglary class P2A protection (EN 356) and low-emission coating.
White and bespoke colour options available on request. Vacuum-impregnated, knot-free pine finished in natural lacquer as standard.
BBA Approved (02/3944) in addition to BS EN 12101-2 certification. Independent third-party assurance of fitness for purpose.
Tile flashing kit (up to 5mm) supplied as standard. Deep tile, slate and plain tile kits available on request.
Smoke ventilation and daily environmental ventilation from a single unit. Compatible with 400 Series, O Range, and 1000-G control panels.
| Dimensions (W × H mm) | Stroke (mm) | GFA (m²) | AFA (m²) |
|---|---|---|---|
| 780 × 780 | 510 | 0.50 | 0.29 |
| 780 × 980 | 640 | 0.64 | 0.38 |
| 780 × 1180 | 775 | 0.78 | 0.47 |
| 780 × 1400 | 800 | 0.93 | 0.58 |
| 940 × 780 | 510 | 0.61 | 0.35 |
| 940 × 980 | 640 | 0.78 | 0.46 |
| 940 × 1180 | 775 | 0.96 | 0.58 |
| 940 × 1400 | 890 | 1.14 | 0.70 |
| 940 × 1600 | 890 | 1.32 | 0.80 |
| 1140 × 780 | 510 | 0.75 | 0.44 |
| 1140 × 980 | 640 | 0.97 | 0.57 |
| 1140 × 1180 (Standard) | 775 | 1.17 | 0.71 |
| 1140 × 1400 | 890 | 1.41 | 0.86 |
| 1340 × 780 | 510 | 0.90 | 0.52 |
| 1340 × 980 | 640 | 1.15 | 0.68 |
| 1340 × 1180 | 775 | 1.40 | 0.84 |
| 1340 × 1400 | 890 | 1.68 | 1.01 |
* Aerodynamic free area values based on 90° installation only
Suitable for roof pitches from 15° to 90°, including near-vertical facade applications. Actuator is hidden from external view.
Actuator flying lead has 3 cores: Brown (Close), White (Open), Orange (High Speed). Wire to control panel for high-speed smoke ventilation.
Standard tile flashing (up to 5mm) included. Deep tile, slate, and plain tile flashing kits available on request for different roof types.
Natural finish: RVFA-SMO-024V-0001. White finish: RVFA-SMO-024V-0002. Alternative sizes and bespoke colours on request.
Full 90-degree centre-pivot opening delivers maximum smoke dispersal with up to 1.68m² geometric free area at the largest size.
BBA Approved (02/3944) in addition to BS EN 12101-2 certification, providing independent third-party assurance of fitness for purpose.
Laminated inner pane with class P2A anti-burglary protection to EN 356, combined with argon-filled steel spacer for thermal and security performance.
Suitable for roof pitches from 15° to 90° including near-vertical facade applications, with 17 standard size configurations available.
Standard in-stock size delivering 1.17m² geometric free area and 0.71m² aerodynamic free area. Current draw 1.4 amps. Natural or white finish options.
Available in sizes up to 1340mm(W) x 1400mm(H) delivering up to 1.68m² geometric free area. 17 standard size combinations across four width and four+ height options.
Minimum 780mm(W) x 780mm(H), maximum 1340mm(W) x 1400mm(H). Bespoke colour finishes and non-standard flashing kits available on request.
Certified to BS EN 12101-2 for smoke and heat exhaust ventilation systems. Standard and bespoke sizes tested and verified for operational reliability.
BBA Approved (02/3944) providing independent third-party assurance of fitness for purpose and product performance.
Smoke ventilation systems require regular testing and record-keeping by authorised, competent persons. Servicing by accredited and certified smoke vent engineers only.
We have a team of ventilation specialists on hand to help guide you towards selecting and customising your system.
Call us: 01202 725 485
Email us: info@vent-trade.co.uk