Sewerin supplier in Romania
Gas leak detection equipment
Founded in 1923 · Headquarters: Gütersloh, Germany
Who is Sewerin and what does it make?
Hermann Sewerin GmbH is a German manufacturer of equipment for gas and water leak detection, with roots in a workshop opened in Gütersloh in 1908 and officially registered as a company in 1923. The range covers portable methane detectors, process gas measuring instruments, water leak detectors and equipment for locating underground pipes. From the Sewerin portfolio we can quote detection equipment for utility companies and contractors specialising in the inspection of gas and water networks.
Sewerin is focused on a specialised niche — leak detection on gas and water networks. The SR-LD 800 instrument detects methane remotely, up to 200 metres, which is useful for inspecting pipelines from a distance, while the AQUAPHON series (A 150, A 200) locates water leaks by listening to the leak noise underground. The company is ISO 9001 certified and holds Authorised Economic Operator (AEO) status for simplified customs operations.
For the Romanian market, Sewerin makes sense for gas and water network operators and for underground network maintenance companies, where fast and accurate leak detection means less exploratory digging and fewer traffic interruptions.
What do we supply from the Sewerin range?
| Product | Description |
|---|---|
| SR-LD 800 Methane Detector | Methane detector with a laser sensor for identifying gas leaks remotely, without direct contact with the emission point, useful for fast inspection of street pipelines or hard-to-reach installations. It reduces inspection time compared with classic proximity-sensor methods, because it does not require physically approaching each suspect point. For a quotation, the customer must state the type of network inspected (street, industrial) and the estimated frequency of use. |
| EX-TEC HS 680 — universal gas measuring instrument | Portable instrument for measuring gas concentration in several applications. It is used by gas installation contractors who need a single instrument for several types of checks. The customer must state the types of measurements performed frequently. |
| AQUAPHON A 200 — water leak detector | Acoustic listening system for locating leaks in underground water networks by listening to the noise produced by the leak, to limit exploratory digging. It is used by water network operators to reduce losses and locate breakdowns quickly. For a quotation, the customer must state the pipe material and the length of network to be inspected. |
Why Sewerin?
- A niche strictly specialised in gas and water leak detection, not a general toxic gas detection range
- The SR-LD 800 detector identifies methane from up to 200 metres away, useful for fast street inspection
- The AQUAPHON series locates water leaks by listening to underground noise, without exploratory digging
- ISO 9001 certification and Authorised Economic Operator (AEO) status for customs operations
- Over a century of continuous activity, from the fitters' workshop founded in 1908
Which Sewerin codes and series are requested most often?
| Code | Description |
|---|---|
| SR-LD 800 | Methane detector with a range of up to 200 metres |
| SR-LD 200 | Portable methane detector from the SR-LD range |
| VARIOTEC 400 EX | Basic portable gas detector with methane sensor (optional propane and butane), in an Ex-protected housing |
| VARIOTEC 460 EX | VARIOTEC series version with additional measuring functions |
| VARIOTEC 480 EX | VARIOTEC series gas analyser, economy version |
| LaserGasPatroller LGP 800 | Remote laser gas leak detector |
| LaserGasPatroller LGP 900 | LaserGasPatroller series laser gas leak detector, for pipeline network inspection |
| PORTAFID M3-K | Portable combustible gas detector with flame ionisation sensor |
| EX-TEC SNOOPER 4 | Gas leak detector for routine inspections |
| SNOOPER mini | Compact gas leak detector for quick checks |
| EX-TEC PM 580 | Combined instrument for gas detection, warning and measurement |
| EX-TEC HS 680 | Universal gas measuring instrument for multiple applications |
| AQUAPHON A 200 | Acoustic water leak detector for buried networks |
| AQUAPHON A 150 | Acoustic water leak detector, basic version |
| Multitec 560 | Portable instrument for process gas analysis |
Where is Sewerin equipment used?
- Natural gas distribution — leak detection on street and industrial networks
- Water distribution — locating losses in underground networks
- Municipal utilities — periodic inspection of gas and water networks
- Network maintenance contractors — equipment for locating interventions
How do we supply Sewerin in Romania?
For Sewerin we work from the manufacturer's technical documentation; we check availability on every request. The instruments arrive made to order through EU supply channels, usually in 1–4 weeks from confirmation. For a correct quotation, the customer must send us the type of detection required (gas or water), the type of network inspected and, if an instrument is already in use, its model for accessory compatibility. We make no promise of permanent availability on any Sewerin model, and metrological calibration of the instruments is not performed by us.
Metrological calibration of Sewerin instruments is outside our scope of supply; we state the certifications specific to each model on request, from the technical documentation.
Frequently asked questions about Sewerin
What is the difference between the Sewerin VARIOTEC 400 EX and VARIOTEC 480 EX detectors?
The VARIOTEC 400 EX is a basic portable detector, with a methane sensor and, optionally, propane and butane, Ex-protected, for routine checks in the gas supply area. The VARIOTEC 480 EX is an economy gas analyser, and the VARIOTEC 460 EX is intended for monitoring pipeline networks. The choice depends on the number of gases to be monitored simultaneously and the level of documentation required.
Do you supply Sewerin gas detection equipment in Romania?
Yes, we bring in methane detectors, universal gas instruments and leak detection instruments from the Sewerin range made to order, based on the exact code required. We do not keep this range on the shelf; made to order, usually 1–4 weeks from order confirmation (Sewerin). It helps to mention the type of gas concerned and the working environment of the application.
What should I send for a quotation on a Sewerin leak detector?
We need the type of network checked, water or gas, the pipe material and the approximate burial depth. The working environment also matters, crowded urban or open area, because it affects the sensitivity and the recommended sensor type, acoustic or laser. Mentioning the frequency of use helps in choosing between a basic model and a higher-end one.
What is the AQUAPHON series from Sewerin?
AQUAPHON is the Sewerin series of acoustic water leak detectors, used for locating losses in buried water networks without exploratory digging. They are frequently used by water operators to reduce network losses.
How do I request a Sewerin quotation?
Send the Sewerin code from the nameplate and the quantity; we reply in English with availability and the lead time written in the quotation.
Request a quoteUpdated: 12 November 2026 · Sources: Sewerin, Hermann Sewerin GmbH (manufacturer documentation)