Supply in Kazakhstan
KEG TRK supplies ultrasonic diagnostics solutions (SDT Ultrasound Solutions) across Kazakhstan: Almaty, Astana, Karaganda, Ust-Kamenogorsk, Aktobe and other regions. Official warranty, monitoring system design, installation, commissioning and personnel training.
Mining equipment
Key features
Applications and resources
Industry solutions, landing pages and articles on SDT340 TankTest — Ultrasonic Tightness Testing of Underground Tanks
Where it is used
Typical tasks
- Underground fuel station tanks (gasoline, diesel)
- Fuel depots and fuel and lubricant storage
- Industrial storage tanks
- Piping connected to tanks
- Environmental control and site audits
- Service companies running periodic inspections
SDT340 TankTest: tank tightness testing without draining or cleaning
SDT340 TankTest is a system for testing the tightness of underground fuel storage tanks and the piping connected to them. It is developed by SDT Ultrasound Solutions (Belgium). The system consists of a portable SDT340 instrument with TankTest mode, two acoustic sensors and a vacuum pump.
Traditional methods need the tank taken out of service, emptied, cleaned and left to stabilize thermally. Preparation takes longer than the test itself, and the tank sits idle the whole time. TankTest removes that preparation: the tank stays full and the operator works from the manhole.
How the method works
- Two sensors go into the tank through the manhole: one submerged in the liquid, one in the vapor zone above the product.
- A vacuum pump draws the tank down by up to 250 mbar.
- When the vacuum exceeds the hydrostatic pressure of the liquid column, air starts to enter through any perforation.
- The air ingress produces an ultrasonic signal. The instrument amplifies it and shows it on screen in dBuV.
- The operator confirms by ear: a leak in the liquid sounds like bubbling, a leak in the vapor zone sounds like hissing.
Reading the result
| Condition | Liquid sensor | Vapor-zone sensor | Headphone sound |
|---|---|---|---|
| Tank is tight | Near baseline | Near baseline | No signal |
| Leak below product level | Above baseline | Near baseline | Bubbling |
| Leak in vapor zone | Near baseline | Above baseline | Hissing |
| Outside noise | Short spike on both sensors | Short spike on both sensors | Unlike a leak |
A reading more than 2 dBuV above baseline, confirmed by ear, indicates a leak.
Why it pays for a service company
| Parameter | SDT340 TankTest | Hydraulic method |
|---|---|---|
| Tank preparation | No draining or cleaning | Water filling, cleaning |
| Waiting time | No stabilization period | Wait for temperature to settle |
| Temperature effect | Does not affect the result | Distorts the result |
| What is tested | Tank and piping in one cycle | Usually separately |
| Consumables | None | Water and its disposal |
| Effect on the defect | Vacuum does not enlarge the perforation | Load can enlarge the defect |
Less preparation means more tanks per working day and less downtime for the client. Where periodic mandatory inspections cover many sites, the economics of the job change.
Guided Mode
The instrument leads the operator through the mandatory steps: pick the tank from the database, enter its parameters, place the sensors according to the liquid height, create the vacuum, collect data from the black and red sensors, and save. Settings are predefined, so the test runs quickly and the same way for different operators. Before a test, the system can be checked on the built-in leak simulator.
SDT TankTest Reporter: a report that is hard to dispute
Data moves from the instrument to SDT TankTest Reporter over USB. The software plots the readings of each sensor and produces a PDF report with customer and operator details, your company logo and comments. Reports are numbered automatically and results cannot be edited. If a result is ever questioned, both you and your client hold a document protected against changes.
Tank range
The system covers tanks per EN 12285 from 1,500 to 100,000 L. The allowed vacuum is lower for the largest tanks:
| Capacity | Maximum vacuum |
|---|---|
| 1,500 to 60,000 L | 250 mbar |
| 80,000 L | 200 mbar |
| 100,000 L | 150 mbar |
The method does not suit tanks with flat ends or flat partitions, aboveground tanks with a flat bottom, box-shaped tanks or polyethylene tanks. Three configurations are possible: tank only, tank with piping, or only the pipes connected to a double-wall tank.
Specifications
| Parameter | Value |
|---|---|
| System base | SDT340 instrument with TankTest mode |
| Channels | 2 sensors via LEMO connector |
| Display | 3.5 inch color TFT |
| Frequency range | up to 100 kHz |
| Sensors | 2 pcs, 32 mm, watertight, hydrocarbon-resistant |
| Sensor resonant frequency | 40 kHz |
| Tank vacuum | up to 250 mbar |
| Pump safety valve | ±250 mbar |
| Power | Li-ion battery, about 8 hours |
| Data transfer | USB Type-C |
| Software | SDT TankTest Reporter |
| Manufacturer | SDT Ultrasound Solutions, Belgium |
What is supplied
- SDT340 TankTest instrument with battery
- Noise-cancelling headphones
- Flexible rod with open sensor
- Two 32 mm acoustic sensors
- Mechanical bush for the manhole and camlock for the pump
- Vacuum pump with ±250 mbar safety valve
- Suction and drain hoses, 5 m each
- Water-detection paste
- Set of conical rubber plugs
- Three screwable 1 m gauge rods
- Leak simulator with six leak options
- Protective holster, charger, USB cable
- SDT TankTest Reporter software and user manual
Confirm the exact configuration when ordering. Price on request.
How to order
Send a request from the product page. A KEG TRK engineer will confirm your tank types and volumes, select the configuration, estimate delivery time and offer operator training.
Technical specifications
| Type | Ultrasonic tightness testing system for underground tanks |
| Platform | SDT340 instrument with TankTest mode |
| Method | Acoustic method with tank vacuum |
| Vacuum | Up to 250 mbar, pump safety valve at ±250 mbar |
| Sensors | Two 32 mm acoustic sensors, watertight and hydrocarbon-resistant |
| Display | 3.5 inch color TFT |
| Battery | Li-ion, about 8 hours |
| Software | SDT TankTest Reporter |
| Tank standard | Tanks per EN 12285, 1,500 to 100,000 L |
| Manufacturer | SDT Ultrasound Solutions, Belgium |
Applications
Manufacturer
SDT Ultrasound Solutions
SDT340 TankTest checks the tightness of underground tanks and connected piping with an acoustic vacuum method: no emptying, no cleaning, no wait for temperature to settle. Two sensors cover the liquid and vapor zones in one cycle.
Key specifications
- Type
- Ultrasonic tightness testing system for underground tanks
- Platform
- SDT340 instrument with TankTest mode
- Method
- Acoustic method with tank vacuum
- Vacuum
- Up to 250 mbar, pump safety valve at ±250 mbar
- Sensors
- Two 32 mm acoustic sensors, watertight and hydrocarbon-resistant
Official supplier in Kazakhstan
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Need advice?
Our specialists will help you choose the optimal SDT340 TankTest — Ultrasonic Tightness Testing of Underground Tanks configuration for your equipment.
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