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Heat Exchanger Leak Detection Tools

VLD-2500
Vacuum Leak Detector

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Lower upfront cost • No storage • Reconditioned every turnaround
Heat Exchanger Tube Testing
How the Vacuum Leak Detector Works

The VLD-2500 vacuum leak detector finds leaking heat exchanger tubes in seconds, without pulling the bundle or shutting down the unit. Seal one end of the tube with a rubber plug, insert the detector into the other end, and pull the trigger — if the tube is leaking, the vacuum draws air through the breach and the VLD-2500 flags it immediately. It's built for tubes from 1/4" to 3" OD and runs on standard plant air (70–100 psi), so there's no separate compressor or power source needed.

Refineries, power plants, and petrochemical facilities use the VLD-2500 as part of routine turnaround inspection to catch tube failures before they cause downtime or contamination. The complete kit ships with a carrying case, 12" extension tube and T-handle, interchangeable nozzles, and rubber plugs sized for 5/8", 3/4", and 1" tubes.

USA Industries VLD-2500 Vacuum Leak Detector complete kit
Tube Range 1/4" – 3" OD
Air Supply 70–100 PSI
Detection Time Seconds
Kit Includes Case, T-Handle, Nozzles, Plugs
VLD-2500 Accessories
Vacuum Leak Detector Accessories
Rubber Plugs
Used to plug the opposite end of the tube being tested. See Chart Sec. 4, page TP-93 for sizing.
VLD-2500 rubber tube plug
VLD Nozzles
Works with the VLD-2500 and T-Handle for the following tube sizes:
  • Nozzle for 3/16" to 1-1/8" ID
  • Nozzle for 1-1/8" to 2" ID
  • Nozzle for 2" to 3" ID
VLD-2500 nozzle
T-Handle
Used with nozzles to plug the tube end being tested.
VLD-2500 T-Handle
Replacement Parts
Spare Nozzles & Disks
For Tube ID's Nozzle Size
3/16" – 1 1/8" Nozzle 1
1 1/8" – 2" Nozzle 2
2" – 3" Nozzle 3
VLD-2500 large replacement nozzle
Nozzle sizes shown above, largest to smallest — call (800) 456-8721 to order spares by size.
Preventive Maintenance
Why Vacuum Leak Detection Matters

Vacuum leak detection gives you a highly sensitive, accurate, and non-destructive way to pinpoint heat exchanger tube leaks early — before a small leak turns into a costly failure, a contamination event, or an unplanned outage.

Used as part of a regular preventive maintenance program, the VLD-2500 extends the service life of your heat exchangers, improves reliability, and reduces unexpected downtime. In power generation, petrochemical, and HVAC operations — where heat exchanger performance is critical — vacuum leak detection also supports regulatory compliance and energy efficiency.

USA Industries VLD-2500 etched label detail

VLD-2500
Operating Manual