Visualize compressed air or gas leaks in piping and flanges

Gas Leak Viewer “MK-750ST”
(JFE Advantech Co., Ltd.)

Improving production efficiency Improvement of labor productivity
Manufacturing of high value-added products Reduction of environmental impact

The device detects a gas leak in piping, etc.,
and indicates the leak location on the camera image
with a superimposed sound pressure map.

Solution Point

Gas Leak Viewer MK-750ST is a detector that instantly identifies the location of a gas leak by simply pointing the main unit at the target equipment.
As the ultrasonic sensors used are not affected by audible noise, the device can detect gas leaks even in noisy environments.
Any type of gas can be detected, including air, vapor, nitrogen, argon, etc.

Problems that can be solved

At manufacturing plants, many pipes are installed to distribute various gases, such as compressed air and fuel gas, to individual buildings and equipment. These pipes may have through-holes due to aging, corrosion, wall thinning, etc., causing internal gas leaks. Until now, checking and confirming gas leaks was a time-consuming process that relied on human senses, such as listening to sounds and spraying soapy water. In addition, gas leak inspection work for overhead piping required setting up of scaffolds and use of an aerial work platform. Gas Leak Viewer MK-750ST is a detector that instantly identifies the location of a gas leak by simply pointing the main unit at the target equipment. This device can also accurately identify distant locations that are as far away as 10-20 m*.

* The leak detection distance depends on the amount of gas leaked.

Technology highlights

The MK-750ST identifies the direction of a gas leak by arranging multiple ultrasonic sensors in a flat plane and calculating the slight difference in arrival time of the ultrasonic waves. The leak location is displayed on the screen by superimposing the identified location on the image from a high-resolution visible camera installed on the same plane as the ultrasonic sensors. In addition, the amount of leak is calculated and indicated using a sound pressure value (ultrasonic strength). As the ultrasonic sensors used are not affected by audible noise, the device can detect gas leaks even in noisy environments. The patented technology also minimizes the number of sensors, thereby reducing the size and weight of the main body.