Gas loss analysis forms the basis for the safe operation of a gas distribution network. Regular monitoring allows the fast tracing of leaks.
During rough location, the gas pipe network is monitored for gas escape by a gas detection test vehicle or on foot.
The test vehicle is equipped with an especially strong suction pump (180 l/min.) and can locate gas emissions within a radius of one meter from the measurement probes. In order to achieve an optimal result, the vehicle should be driven along the street at a maximum speed of 10 km/h.
All pipes and connections to houses which cannot to be reached by the test vehicle are checked out using a carpet probe and a gas detector.
If traces of gas are detected during the first stage of analysis, holes are drilled in the ground at intervals of approximately one meter along the defective pipe route. Then, the soil is relieved using extraction ejectors and the gas concentration in the boreholes is measured. The borehole with the highest gas concentration is usually the one nearest to the leak.
The gas loss analysis is concluded with a detailed report on the area monitored, including a classification of the leak category and a sketch of the point of failure.
Gas loss analysis forms the basis for the safe operation of a gas distribution network. Regular monitoring allows the fast tracing of leaks.
During rough location, the gas pipe network is monitored for gas escape by a gas detection test vehicle or on foot.
The test vehicle is equipped with an especially strong suction pump (180 l/min.) and can locate gas emissions within a radius of one meter from the measurement probes. In order to achieve an optimal result, the vehicle should be driven along the street at a maximum speed of 10 km/h.
All pipes and connections to houses which cannot to be reached by the test vehicle are checked out using a carpet probe and a gas detector.
If traces of gas are detected during the first stage of analysis, holes are drilled in the ground at intervals of approximately one meter along the defective pipe route. Then, the soil is relieved using extraction ejectors and the gas concentration in the boreholes is measured. The borehole with the highest gas concentration is usually the one nearest to the leak.
The gas loss analysis is concluded with a detailed report on the area monitored, including a classification of the leak category and a sketch of the point of failure.