
Sampling and analysis technology for the water-steam cycle as well as regeneration technology and technical high-pressure components.

Dr. Leye GmbH
Geringswalde (DE)New on Amplifa
About Dr. Leye GmbH
Since 1990, Dr. Leye GmbH has specialized in sampling and analysis measurement technology as well as technical solutions for water treatment and wastewater treatment. The company in Geringswalde manufactures standardized sampling systems (SWAS) for the water-steam cycle, analyzers for parameters such as silica, sodium, m-value, hardness and phosphate, as well as technical high-pressure components. In addition, Dr. Leye realizes custom-made solutions, including automatic regeneration systems RS1 and RS4 for the gentle regeneration of ion exchange resins. The range of services covers the entire process from engineering and production through quality assurance to assembly and after-sales service; since 2007 the company has been part of Dr. Thiedig GmbH & Co KG. As a certified manufacturer and welding company (AD 2000 code of practice, EN ISO 3834-2), Dr. Leye also manufactures pressure equipment. Customers come from the power plant and process industries, water treatment and wastewater treatment; all devices are tested in the company's own test laboratory before delivery.
- Site
- Geringswalde
- Processes
- Engineering and production of technical solutions (sampling systems, SWAS), Assembly, Series manufacturing of analyzers, Welding (certified welding company according to AD 2000 code of practice, EN ISO 3834-2), Manufacture of pressure equipment (AD 2000 code of practice), Quality assurance with own laboratory facilities and testing methods, Manufacture of technical high-pressure components, Custom-made solutions incl. automatic regeneration systems RS1 and RS4
- Materials
- Manufacture of pressure equipment (AD 2000 code of practice), Welding manufacturing according to EN ISO 3834-2, Sampling technology (SWAS), Regeneration technology, Analyzer manufacturing
- Certificates
- DIN EN ISO 9001:2015, AD 2000 code of practice (manufacturer and welding company), EN ISO 3834-2 (welding quality requirements)
- Founded
- 1990
- Industries
- Water-steam cycle (power plant/process industry), Water treatment, Wastewater treatment
- 01
Engineering and design (sampling systems, SWAS)
- 02
Production and welding manufacturing (pressure equipment, high-pressure
- 03
Quality assurance with own laboratories and testing before delivery
- 04
Assembly
- 05
After-sales service
Processes & Manufacturing Competencies
Manufacture of pressure equipment (AD 2000 code of practice)
Manufacture of pressure-bearing components for the water-steam cycle as a certified manufacturer and welding company.
Welding manufacturing according to EN ISO 3834-2
Certified welding quality requirements for high-pressure components and sampling systems.
Sampling technology (SWAS)
Components for sample conditioning, cooling, depressurization and metrological evaluation in the water-steam cycle.
Regeneration technology
Automatic regeneration systems RS1 and RS4 for the gentle, fully automatic regeneration of ion exchange resins.
Analyzer manufacturing
Series production of in-house analyzers for silica, sodium, m-value, hardness and phosphate.
Locations

Geringswalde
DEHeadquarters, production, test laboratory
- Water treatment plant (2025/2026)
- Test laboratory (2 laboratories from 2026)
- Production hall (since 2000)
Components & Products




Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Engineering and production of technical solutions (sampling systems, SWAS)Engineering | – | – | – | – | – |
| AssemblyAssembly | – | – | – | – | – |
| Series manufacturing of analyzersAssembly | – | – | – | – | – |
| Welding (certified welding company according to AD 2000 code of practice, EN ISO 3834-2)Joining | – | – | – | – | – |
| Manufacture of pressure equipment (AD 2000 code of practice)Joining | – | – | – | – | – |
| Quality assurance with own laboratory facilities and testing methodsTesting | – | – | – | – | – |
| Manufacture of technical high-pressure componentsJoining | – | – | – | – | – |
| Custom-made solutions incl. automatic regeneration systems RS1 and RS4Assembly | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Water treatment plant | – | 1 | – | 2025 | Geringswalde |
| Test laboratory | – | 2 | – | 2025 | Geringswalde |
Additional services
Reference customers
Quality & Certification
Quality assurance is an integral part of the entire manufacturing process: from goods receipt to shipping, inspection steps are documented and archived. In-house laboratory facilities and modern measurement and testing methods accompany production, and all devices are tested before delivery.
| Evidence | Geringswalde |
|---|---|
| DIN EN ISO 9001:2015 | |
| AD 2000 code of practice (manufacturer and welding company) | |
| EN ISO 3834-2 (welding quality requirements) |
History
- 1990
Foundation of Kuntze + Leye GmbH with a focus on sampling technology and ultrapure water analysis
- 1998
Renamed to Dr. Leye GmbH
- 2000
Construction of a new production hall; start of development and manufacturing of in-house analyzers for silica, sodium, m-value and hardness
- 2007
Acquisition by Dr. Thiedig GmbH & Co KG
- 2019
Expansion of production for series manufacturing of analyzers
- 2020
30th company anniversary
- 2025
Development of a new phosphate analyzer
- 2026
Installation of a larger water treatment plant and a second test laboratory to increase capacities in analyzer manufacturing