What Is VESDA Pipe Used For?
VESDA pipe is used to form the air sampling network for an aspirating smoke detection system. Instead of relying only on smoke reaching a standard point detector by natural movement, an aspirating system actively "sniffs" air through a network of VESDA pipes and sampling holes.
This pipe network is a vital component of the overall system. The layout, VESDA pipe size, fittings, and sampling points all need to support the specific airflow velocity required by the detector. For this reason, all VESDA pipework should be selected and installed in line with the system design, detector requirements, and relevant VESDA pipe installation guide to ensure transport times remain within legal limits.
VESDA Pipework and VESDA Piping Solutions
The terms VESDA pipework and VESDA piping describe the integrated installation products required for a complete ASD network. This includes the 25mm sampling pipe itself, as well as the specialized fittings needed to route the pipe network around the protected area.
A high-performance VESDA pipe network may include straight pipe lengths, 90-degree bends, 45-degree elbows, tees, sockets, end caps, and VESDA pipe clips. These components are manufactured from ABS to create a secure, airtight, and correctly routed sampling network. When ordering VESDA piping, always verify the required pipe size (standard 25mm) and system design before purchasing to ensure a "low flow" fault does not occur after commissioning.
Choosing the Correct VESDA Pipe Fittings
VESDA pipe fittings are used to connect, route, and support the sampling pipe network. The correct fittings help maintain the intended pipe layout and allow the system to be installed neatly and securely.
Before ordering your VESDA pipe fittings, consider:
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Detector and System Design: Ensure the pipe network has been designed using Xtralis ASPIRE software for the specific detector being installed.
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VESDA Pipe Size: Confirm you are using the industry-standard 25mm diameter before ordering pipe lengths, VESDA pipe clips, or fittings.
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Fitting Type: Check whether your route requires 90-degree elbows for sharp turns or 45-degree bends for smoother airflow.
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Environment Severity: Consider whether the pipework will be installed in a warehouse, data centre, or a cold store where expansion and contraction must be managed.
if you are unsure on this before purchasing, get in touch with one of our sales reps for assitance.
VESDA Pipe Installation Considerations
A professional VESDA pipe installation should be carried out in strict accordance with the VESDA pipe network installation guide. The position of the detector, the specific pipe routes, the placement of sampling holes, and the type of fittings used can all significantly affect system performance.
During installation, engineers must ensure that the pipe network is securely fixed using specialized VESDA pipe clips. These supports are used to hold the pipework in place and help prevent vibration or strain that could lead to air leaks. Following a VESDA piping installation plan ensures that the air sampling remains consistent across all branches, which is critical for VESDA pipe network design compliance.
VESDA Pipe Size and Sampling Pipe Compatibility
VESDA pipe size and material compatibility are the two most important factors when ordering. Aspirating smoke detection systems rely on airtight, 25mm ABS sampling pipework to function. Incorrect pipe sizing or using unsuitable PVC fittings may affect detection performance and will likely fail commissioning tests.
If you are replacing part of an existing network or performing maintenance, check the current VESDA pipe data sheet to ensure the replacement parts match the original specification. Our VESDA sampling pipe and fittings are designed to maintain the intended airflow and integrity of your fire detection system.
VESDA Pipe Price and Availability
The VESDA pipe price can vary depending on whether you require individual lengths, bulk quantities of fittings, or specialized VESDA pipe clips. You can view our current trade pricing and live availability on the product listings above.
Fire Trade Supplies is one of the UK's leading VESDA pipe suppliers, providing everything required for a professional installation. We offer fast UK delivery, with free next-working-day shipping available on qualifying orders over £150 ex-vat.