Technologies for leak detection.
Leaders in Water Leak Detection and Gas Leak Location Equipment-Tools
Welcome to SEWERIN Limited ~ UK and International Supplier of Hermann Sewerin Leak Detection Tools, Leak Location Equipment to Find Water and Gas Leaks. Suitable for Water and Gas utilities, Plumbers and Restoration Companies
Sewerin's expertise is the development and production of electronic measuring equipment for locating, measuring and warning of both water and gas leaks.
Sewerin’s advanced product technology combined with over 80 years of experience in the development of water and gas leak detection and pipe location equipment is available in the United Kingdom (UK), Ireland, Kenya and India directly from Sewerin Limited and is designed to find water and gas leaks, locate pipes or lost valves in the following applications:
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| pipe location | lost cover location | biogas monitoring | gas network survey | tracer gas | water leak location |
| WATER LEAK LOCATION | Advanced digital and electroacoustic technology for the professional water leak technician. Correlators, Ground mics, Tracer gas, Noise loggers |
| PIPE AND CABLE LOCATION | Tracing plastic and non-metallic pipes using electro-acoustic detection. Pipe and cable locators and tracers, metal detectors. |
| GAS LEAK LOCATION | Instruments for monitoring, tracing, warning of gas leaks in distribution networks, houses and the work place |
| BIOGAS AND LANDFILL | Portable and fixed Systems to monitor biogas and landfill gas composition |
With a global network of subsidiaries and distribution partners, SEWERIN Gas and Water leak location and detection equipment is available throughout the world.
Techniques for finding water leaks:
- Correlators: Two microphones are attached to a water pipe with a leak and both “listen” for the noise from the water leak. If they can both “hear” the water leak, the correlator, (combined with other data entered by the user), calculates the position of the water leak. Correlation is best suited to larger pipe networks such as network distribution pipes.
- Electroacoustic ground microphones: Pressurised water pipes with leaks produce noise. Using electroacoustic ground microphones, or listening sticks, the user can often hear this noise and identify where the water leak is. This technique works well both indoors and outdoors.
- Tracer Gas: A tracer gas containing hydrogen and nitrogen is introduced into the water pipe with the suspected leak. The gas escapes from the leak point and is detected by the Variotec 460 Tracer gas instrument. Very successful leak detection method inside buildings, on customer supply pipes and swimming pool water leaks.
- Noise loggers Water leak noise loggers are attached to the pipe by magnets and “listen” for water leak noise during the, relative, quiet of the night. Water leak noise loggers are best suited for pre-location of water leaks (identifying the approximate area of a water leak before pinpointing the water leak) on larger pipe networks such as network distribution pipes.
