F.A.S.T
https://www.fastgmbh.de/
https://www.fastgmbh.de/
F.A.S.T. GmbH is a German manufacturer with over 30 years of experience in water leak detection. The range extends from correlators and ground microphones/listening devices for pinpointing leaks, through pressure-pipe survey systems (PipeMic®), to networked data loggers and the WATERCLOUD platform for continuous leak monitoring. The aim: excellent quality and innovative technology for the sustainable management of drinking-water networks.
At SEMPERDEAL you receive F.A.S.T. leak-detection technology with sound advice on the right method – from acoustic pre-location to precise pinpointing – and fast delivery directly from the specialist dealer.
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Frequently asked questions
General1
After failing to locate the leak with correlation and geophones what are the next steps before considering relining?F.A.S.T
If traditional non-intrusive acoustic methods fail, our PipeMic Series can still yield impressive results. Since the PipeMic is introduced into the pipe itself it can pick up almost every noise, even with high ambient noise levels. Hydrogen tracer gas should also be considered as an application of last resort. This non-acoustic method can help to find even the smallest leaks and can be applied on empty and on live pipes (with our GasDiffuser).
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Who are the products intended for?
Our range is aimed at specialist companies and organisations in the utilities and civil-engineering sector – including municipal utilities, water suppliers, energy utilities (EVU), construction companies, municipalities, telecommunications companies, engineering offices and technical service providers.
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Repair & Service0
Do you offer calibration?
As an official service point, we offer calibration for cable locators, leak detection and measuring devices. For a large proportion of the devices sold on the market, we issue corresponding certificates. You'll find more information on our Service & Repairs page and at service@cft.at.
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Can I get a loan device during the repair?
On request, we'll provide you with a loan device during the repair – at our standard rental rates. We'll be happy to clarify availability and details with you: kontakt@semperdeal.com.
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Who do I contact for technical problems?
Our support team is happy to help with technical problems. Write to us at kontakt@semperdeal.com and include the device type, the exact error message and – if possible – a photo. That way we can help you quickly and specifically.
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Do you offer repairs?
Yes, we offer repair services for most of the appliances in our range. Please submit a repair request directly via our repair request form or contact us at kontakt@semperdeal.com.
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How much does a repair cost?
Po otrzymaniu Twojego urządzenia przygotujemy kosztorys. Naprawa jest wykonywana dopiero po Twojej akceptacji. Ewentualną opłatę diagnostyczną podamy na zapytanie: kontakt@semperdeal.com.
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Do you offer an on-site service?
Yes. In Austria and Germany we offer an on-site service – from installation and instruction through to repair. Please arrange appointments at kontakt@semperdeal.com.
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Datasheets & Downloads0
Is a user manual included?
Yes, the appropriate user manual is included with every device. You'll also find the manual on the respective product page in the "Downloads & Media" section. We'll gladly provide a digital version by email on request as well: kontakt@semperdeal.com.
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Where can I find software or apps for the devices?
You can obtain the software and apps for the devices from the respective manufacturers' websites. In addition, you'll find all software solutions from the individual manufacturers and products bundled in our "Software" section. If you have any questions about installation, we're happy to help: kontakt@semperdeal.com.
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Where can I find technical data sheets?
You'll find the technical data sheets directly on the respective product page in the "Downloads & Media" section. If you can't find a particular data sheet, we'll be happy to send it to you by email: kontakt@semperdeal.com.
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Training Courses0
Can I book training for a device I already own?
Yes. Training can also be booked for devices you already own – regardless of whether you purchased them from us. We also offer refresher courses. Simply contact us at kontakt@semperdeal.com.
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Technical Consulting12
Which device is right for my application?
We're happy to help. Just describe your application and we'll recommend the right device for you. You can reach us by email at kontakt@semperdeal.com, via chat, or by phone at +43 (0) 2252 53169.
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How can noise levels from different ground materials be comparedF.A.S.T
Comparison between noise levels are only possible with the same ground material. The noise levels should always be seen as relative, never as absolute values.
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What's the smallest leak size detectable with Hydrogen tracer gas?F.A.S.T
Hydrogen tracer gas can be successfully used to find the smallest leaks (dripping connections etc.).
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Is this H2 tracer gas method only used in specific cases of leaks that were not detected by other means?F.A.S.T
Yes, tracer gas is often considered the step of the last resort.
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What's a recommended distance between each BIDI Logger to guarantee a good coverage of the network?F.A.S.T
Propagation of leak noise at a pipe pressure of 4–6 bar and a leak size of a suitable magnitude (at least 3–4 mm) for standard structure-borne sound sensors: DN 50, DN 100, DN 200, DN 400, DN 600, DN 800, >DN 800, ductile cast iron:
| Material | DN 50 | DN 100 | DN 200 | DN 400 | DN 600 | DN 800 | >DN 800 |
|---|---|---|---|---|---|---|---|
| Ductile cast iron | 1000 m | 800 m | 500 m | 150 m | 100 m | 60 m | 30 m |
| Cast iron | 1000 m | 800 m | 500 m | 150 m | 100 m | 60 m | 30 m |
| Steel | 1,200 m | 900 m | 600 m | 170 m | 120 m | 70 m | 35 m |
| Concrete (asbestos) | 800 m | 500 m | 230 m | 130 m | 80 m | 50 m | 20 m |
| GRE (fibre optic) | 1,200 m | 900 m | 600 m | 170 m | 120 m | 70 m | 35 m |
| PVC | 50 m | 45 m | 40 m | 30 m | – | – | – |
| PE | 40 m | 35 m | 30 m | 20 m | – | – | – |
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How long does the H2 sensor last?F.A.S.T
There is medical grade, technical grade and industrial grade Hydrogen/Nitrogen gases. For leak detection the lowest and cheapest grade will suffice.
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Do high flow velocities need to be reduced by closing valves when using the GasDiffuser (e.g. at times of maximum consumption)?F.A.S.T
This is not necessary.
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How can the mixing of the tracer gas into the water stream be improvedF.A.S.T
The goal is to have "high turbulence" and "high flow velocities" at the insertion point. Therefore, if a valve is close by it makes sense to partially shut it to create more turbulence.
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Can the PWG be operated with higher pressures than specified (above 8 bars)?F.A.S.T
Yes, this is possible but with the risk of damaging the internal valve. The internal valve can easily be replaced and there is a spare valve with every new device.
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Should the PWG be operated on a closed line (under pressure) or an open line?F.A.S.T
Both is fine.
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Can the PWG cause damage?F.A.S.T
The PWG is basically just a valve, opening and closing in rapid succession. The stress put on the network and the pipes does not significantly exceed regular operation.
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What's the typical range for the PWG on PE/PVC pipes?F.A.S.T
This depends on pipe diameter and water pressure. The higher the pressure and the smaller the diameter, the further the soundwaves will propagate. About 500-600m should be possible with high pressure.
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What types and sized of pipes can the PWG be used on?F.A.S.T
The PWG can be used on both, mains and house connections.
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