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Smoke and Natural Ventilation Specialists | Established 1998
Smoke Control Systems
Specific Control Functions
Our fan technology plays several important roles in the event of an emergency condition. Each could be an important defense against life-threatening fumes and hot smoke:
Control and removal of hot smoke/gases to give time for occupants to escape – even if the fan itself is subject to high temperatures. Extraction of ‘cool’ smoke while it remains unstable in the early stages of a fire.
Pressurization: supply of clean air into escape routes to hold back smoke.
Clearance: removal of residual smoke after fire is contained and suppressed Natural ventilation may be inadequate for these needs, particularly where ‘cool’ smoke may be involved, and could be compromised by prevailing winds.
- Sizes: 315mm to 2800mm Ø
- Volume flow: up to 210m3/s
- Static pressure: up to 2070 Pa
- High temperature capability:
- Up to 400°C for 2 hours
- IE2 motors where applicable
- Role: Emergency ventilation/hot fire smoke extraction
The Ventrite Fire Mac Smoke Fans are currently fitted into Drying Machines, Stenters, and Smoke Venting systems, all over the world. This long experience coupled with the introduction of the new improved performance JM Aerofoil fan range forms the basis for the new H.T. SERIES fans and roof extract units designed specifically for Fire Smoke Ventilation. Our suppliers manufactures fan motors, and is therefore able to look critically at the requirements of motor insulation, bearings and lubricants which are vital elements in achieving high temperature performance. Extensive stress tests on the new JM Aerofoil fan impellers operating at high temperatures has enabled Ventrite International to make the best use of both designs and materials.
A full high temperature test programme has been successfully completed. Some of this programme was carried out at independent laboratories, eg T.Ü. in Germany and C.T.I.C.M. in France
These tests combined with renowned high standard of engineering and quality assurance serve to support the H.T. SERIES specification.
Extensive market research has resulted in the H.T. SERIES being offered in six temperature/time categories to meet all of the internationally recognised requirements.
The equipment detailed in this publication is not the full range of items available. If your requirement is not included please enquire to your nearest sales office.
- Steel Hot Dipped Galvanized Casing
- Shopping Complexes
- Motor Dealerships
- Furniture Stores
- Clothing Stores
- Fitment Centres
- Sports Centres
- Factories
- Warehousing
High Temperature Smoke Extraction Fans
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Temprature/Time/Classification
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Fan Range
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Impellar Material
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Supporting BSRIA Reports
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Sizes
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200°C / 2 Hr / F200
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31JM to 160JM
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Aluminium
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17867B/4
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315mm to 2800mm diameter
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250°C 2 Hr / Not Classified
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31JM to 160JM
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Aluminium
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17867B/2, 17867B/3
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315mm to 2800mm diameter
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300°C / 1 Hr / F300
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31JM to 160JM
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Aluminium
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17867B/2, 17867B/3
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315mm to 2800mm diameter
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300°C / 1.5 Hr / Not Classified
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31JM to 160JM
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Aluminium
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17867B/2, 17867B/3
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315mm to 2800mm diameter
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300°C / 2 Hr / Not Classified
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31JM to 160JM
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Aluminium
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17867B/2, 17867B/3
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315mm to 2800mm diameter
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400°C / 2 Hr / F400
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31JM to 125JM
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Aluminium
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17867B/2, 17867B/3
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315mm to 2800mm diameter
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Model Dynamics and Dimensions
- Mounting Feet
- Mating Flanges
- Mounting Plate
- Vertical Discharge Unit (VDU)
- Air Operated Damper
- HT Flexible Connector
- Soaker Sheet
- Inlet Cone and Screen
- Silencer 1.0D with pod
- Silencer 1.5D with pod
- Melinex Silencer 1.5D with pod
- Silencer 2.0D with pod
- Silencer 1.0D without pod
- Silencer 1.5D without pod
- Silencer 2.0D without pod
- Anti Vibrating Mountings (AVM’s)
Tested In Accordance To The European Standard EN 12101-3 Standard
This highly specialized smoke fan extraction range have successfully been tested according to the EN 12101-3 standard, by an approved European Institution and have achieved outstanding results in the following disciplines:
BS EN 12101-3 Test Classes
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F200 (200°C, 2Hr)
F300 (300°C, 1Hr)
Unclassified (300°C, 2Hr)
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Test Temperature
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300°C
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Test Time (Hours)
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2 Hrs
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Application Classes
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Uninsulated
Smoke Reservoir and Non Smoke Reservoir
Dual Purpose
No Ducted Cooling Air Required
Horizontal Orientation
Vertical Orientation
Form A and Form B Operation
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General specifications Fläkt Woods fans for smoke control and fire safety are supplied with the following general specifications: Installation – Suitable for internal and external mounting – Run and standby operation, in parallel or series Standards – EN 12101-3 compliant – Aerodynamic tested to BS ISO 5801:2007 – Acoustic tested to BS 848-2.5:2003 – CE-marked Motors – IE2 motors where applicable – IP55 rated motor protection Impeller – Non-stalling pitch blade angle (available on certain fans) – X-ray examination of impeller castings
Technical Detail for Specifications
- EC-Certificate of Conformity

- H.T Smoke Extraction Systems