VESDA-E VEP
Aspirating detection for a broad range of applications.
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Xtralis · VESDA
Earlier smoke detectionMore time to act
Air sampling brings smoke to the detector. The pipe network makes the difference.
About Xtralis · VESDA
Detection begins at the sampling point
With VESDA, you can sample air continuously through a pipe network and detect small amounts of smoke. The VESDA-E range lets you choose the sensitivity, coverage and location information your site needs.
Meet the manufacturer
Our products
The Xtralis · VESDA range
VESDA-E VEU
Very high sensitivity for demanding early-warning applications.
Explore VESDA-E VEU Ask about this rangeVESDA-E VES
Sector addressability to identify the responding pipe sector.
Explore VESDA-E VES Ask about this rangeHow VESDA detects smoke
01
Sample
Position sampling points around the detection objective and airflow.
02
Transport
Pipe length, branches and hole sizes influence transport time and balance.
03
Analyse
The detector measures the sampled air against configured alarm thresholds.
04
Respond
Define warning stages and connect them to an agreed response.
Product guide
Estimate your sampling-point layout
Estimate a ceiling grid from room dimensions and spacing. ASPIRE handles the detailed pipe design.
How this calculation works
Points = ceil(length ÷ spacing) × ceil(width ÷ spacing). This assumes a rectangular, uniform ceiling grid, with points centred in each cell. Spacing is supplied by you; no code-compliant value is assumed.
Obstructions and airflow can change the layout. ASPIRE calculates the detailed pipe network, including hole sizes, air travel time and sensitivity. This worksheet does not determine detector count or EN 54-20 class.
Certifications
Approvals, at a glance
EN 54-20
VEP · approved network configuration applies
UL / ULC
VEP · listed regional variants
FM
VEP · approval schedule applies
VESDA approvals cover specific detectors and pipe configurations. ASPIRE calculates air travel time and sampling-hole sensitivity for the proposed layout.
Applications
Where And How To Use The Range
Specialist Applications
Refrigerated Storage
VESDA sampling pipes can protect refrigerated spaces. Follow the cold-storage design guide, including condensation control and detector location outside sub-freezing areas.
Manufacturer DetailsPlan delivery and supportSolution designTesting and commissioningStatutory system testing and maintenanceTraining
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From the Manufacturer
Watch & Explore
How VESDA-E smoke detection works
Technical resources
Product documents and downloads
Frequently asked questions
Quick answers
Can I calculate VESDA pipework from room volume alone?
No. You need to account for the pipe layout, sampling holes, branches, fittings, detector settings and airflow. Use the approved design software and guidance for your application.
Does this worksheet calculate transport time?
No. You can use this worksheet to estimate a sampling grid. To calculate transport time and sensitivity at each hole, you’ll need an ASPIRE model.
Are all VESDA-E variants approved to EN 54-20?
You’ll need the approval for your particular detector and region. Approvals also specify the pipe configurations you can use.
How does VESDA detect smoke?
A fan draws air through sampling pipes to a detector. Smoke in that air is measured at the detector, allowing sampling points to be placed around the protected area.
Can VESDA connect to an existing fire alarm panel?
The connection depends on the detector model and supported panel interfaces. Provide both model numbers and specify which alarm and fault signals the panel needs to receive.
What maintenance does a VESDA system need?
Follow the model’s maintenance instructions for filters, airflow checks and functional smoke tests. Inspect the pipework and sampling holes too; blocked or damaged pipes can affect detection.
What should I send for a VESDA replacement or extension?
Send the detector model, pipe drawing, existing design calculation and panel connection details. Include changes to room use, racks or ventilation because these can affect the sampling design.
Talk To Our Team
Plan your VESDA system
We can help you choose a VESDA range and prepare the information needed for pipe design.