Wide range of network inspection packages
The SEWERIN <link internal-link internen link im aktuellen>network survey division’s extensive range of services for public and industrial pipe network operators is based on 80 years of experience.
One invaluable advantage for practical work is the regular feedback from those carrying out network inspections to SEWERIN’s product management. This permanent exchange means that existing products can be regularly updated and new trends identified at an early stage for developing new products. The product managers in Gütersloh specifically assign staff from SEWERIN’s network inspection section with test tasks which can only produce informative results in everyday practice.
Network survey is divided into the following areas:
<link internal-link internen link im aktuellen>Gas pipeline inspection
<link internal-link internen link im aktuellen>Water pipe network inspection
Inspection of pipes in bridge structures
<link internal-link internen link im aktuellen>Odorant control
<link internal-link internen link im aktuellen>Leak detection using tracer gas technique
Gas and water pipe network insoection on factory premises
<link internal-link internen link im aktuellen>Pipe location
Leak detection in household installation
With over 50 gas and water pipe network inspectors, SEWERIN provides its customers at home and abroad with a competent and responsible team.
The network inspection service is offered on the basis of contracts of one or more years. Jochen Steigert, SEWERIN division manager, believes contracts of several years are of mutual benefit, even just for practical reasons: “Some of our gas and water pipe network inspectors have been working with regular customers for many years. Over time, these members of staff acquire excellent knowledge of the pipe network being inspected, which ultimately improves the speed and quality of the process.”
Gas pipeline inspection
SEWERIN gas leak detection specialists use our own technology, including gas measuring, gas detection and explosion-proof gas warning devices, as well as an extensive range of other equipment for documenting and evaluating the measuring results. Increasingly, the gas leak detection specialists are equipped with digital map systems and SEWERIN’s <link internal-link internen link im aktuellen>SeCuRi®-SAT system to allow them to inspect the networks and document their work with the help of GPS instead of guides. Already over 50% of SEWERIN gas leak detection specialists use SeCuRi®-SAT.
As well as having to be on standby much of the time, those involved in inspecting gas pipe networks and locating leaks require a sense of responsibility must be highly reliable. With over 20 years of professional experience on average and regular further training, SEWERIN gas leak detection specialists offer the maximum guarantee of proper implementation of the requirements of the DVGW regulations (German Technical and Scientific Association for Gas and Water).
Water pipe network inspection
Underground leaks in water pipe networks harbour the risk of eroding roads and buildings. Apart from the safety considerations, the financial implications of wasting our most precious commodity are significant.
SEWERIN water pipe network inspectors are trained to use all the current methods of detecting leaks. In addition to electroacoustic and correlative methods, flow analysis and the tracer gas technique can be used. SEWERIN is one of the first companies to be certified as a specialist company for the inspection and maintenance of water distribution systems in accordance with DVGW W 491-1 (A).
Odorant control and pipe inspection using the tracer gas technique
With three specially fitted measuring vehicles, SEWERIN staff perform the odorant controls set out in DVGW Code of Practice G 280-1 (A) (German Technical and Scientific Association for Gas and Water) (THT, TBM, S-Free). The minimum concentrations of the odorous substance added to the natural gas for safety reasons are tested chromatographically at specified measuring points during the summer and winter inspections.
The tracer gas technique is a method of detecting even the smallest leaks in pipe networks. This method is always used when other technical measuring techniques fail to detect leaks. The tracer gas method is suitable for all pipes and containers. You can find a product film about this on the SEWERIN YouTube channel.
SeGAS® Sewerin gas installation service
Inspecting gas and water installations on factory sites and supply pipes at and in bridge structures is a highly complex area. Such projects require an immense amount of consultation and organisation. Sales engineer Stefan Hoffmann is available to provide further information about this service, and there is also an information leaflet for those interested.
Pipe location
In addition to water pipe network inspection, SEWERIN also offers a pipeline location service. Metal and non-metal pipe systems and cable lines can be located using electronic and acoustic location techniques. This is a way of supplementing incomplete map systems and documenting unknown pipe layouts or house service connections. Together with our partner company, we can create complete map systems.