What Dr. Thiedig does

Dr. Thiedig GmbH & Co KG is a family-owned German manufacturer founded in 1939 and headquartered in Berlin, specializing in high-pressure sampling and analysis systems for industrial water-steam cycles. The company's core offering is the Steam and Water Analyzing System (SWAS) portfolio, which combines modular sampling hardware (sample coolers, pressure-reducing and shut-off valves, cation exchangers, particle and magnetite filters, flow indicators, and distribution blocks) with a proprietary family of analyzers (Digox 602 series for phosphate, silica, sodium, acid conductivity, and the Digox 6.1 line for oxygen, hydrogen, and hydrazine, plus the Oxyflux 6.1 for nuclear-grade sub-ppb oxygen). The platform is engineered for extreme operating envelopes, with valves rated to 10,000 bar and 620°C for supercritical applications, and dedicated nuclear-qualified variants (Oxyflux 6.1, VD 70 bellows-seal valve, Druckminderer VS 61) certified to KTA, ASME, AD 2000 HP0, EN 13445, and CEGB standards. All major components are manufactured in-house to control quality, and the company offers complete turnkey solutions including climate-controlled analysis containers and mobile sampling stations.

The company serves three primary verticals: power generation (conventional, nuclear, and supercritical plants), chemical and refinery operations with hazardous-substance sampling, and beverage manufacturers requiring hygienic oxygen measurement and total-package-oxygen analysis. Revenue is generated through a combination of one-time capital-equipment sales, professional services (commissioning, maintenance, engineering, welding), and ongoing spare-parts and consumable supply, all priced on a custom quotation basis. Distribution is direct enterprise sales augmented by a global partner network providing 24/7 local support. The customer base spans more than 5,000 accounts worldwide, with a heavy concentration of certified-supplier relationships with major European and Middle Eastern utilities and OEMs including E.ON, Vattenfall, Siemens Energy, RWE, EnBW, EDF, Framatome, Hitachi, Mitsubishi, BASF, and PreussenElektra. The wholly-owned subsidiary Dr. Leye GmbH extends the group into water-treatment and wastewater automation, and the two are exhibited jointly at industry events such as the vgbe-Chemiekonferenz.

Name

Dr. Thiedig

Legal name

Dr. Thiedig GmbH & Co KG

Website

https://thiedig.com

Company type

Private

Founded year

1939

Operating status

Operating

Headcount range

11–50 employees

Short description

Family-owned German manufacturer (founded 1939, Berlin) of high-pressure sampling and analysis systems for power plants, chemical/petrochemical, and beverage industries, with in-house manufacturing and nuclear-grade certifications.

Ownership category

akta.pro rank

Product category

Industrial Process Sampling and Analysis Equipment

NAICS

Power Boiler and Heat Exchanger Manufacturing (33241), Fluid Power Valve and Hose Fitting Manufacturing (332912), Totalizing Fluid Meter and Counting Device Manufacturing (334514)

SIC

Refrigeration & Service Industry Machinery (3580), Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Cooling, Water/Steam Cycle & Balance-of-Plant Retrofits (Condensers, Cooling Towers) (EUAEALAK)

akta.pro secondary industries

Chemistry, Water Treatment & Radiochemistry (Primary/Secondary Chemistry, Sampling) (EUAKABAG), Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC), Wastewater & Industrial Effluent Monitoring (NPDES/Permit Compliance) (EUAHACAD)

Keywords

• Process sampling systems
• Water-steam analysis
• Industrial analyzers
• High-pressure valves
• Power plant chemistry

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Sampling and Analysis Systems (Capital Equipment): Sale of complete sampling and analysis systems including sample coolers, valves, pressure reducers, analyzers, and modular stations. Systems are customized to customer specifications and delivered as turnkey solutions.
2. Professional Services: 包括维护、调试、安装和工程服务。服务工程师提供维护合同，确保设备的功能安全和运行准备。
3. Spare Parts and Replacement Components: Replacement parts, ion exchange resin cartridges, sensors, and consumables supplied according to high international standards with short delivery times.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Dr. Thiedig designs, manufactures, and supplies modular sampling systems and complete analysis solutions for water-steam cycles in power plants, chemical/petrochemical plants, and beverage production. Its portfolio includes sample coolers, pressure-reducing valves, cation exchangers, and proprietary analyzers (Digox series) for oxygen, conductivity, pH, sodium, silica, phosphate, hydrogen, and hydrazine, delivered as turnkey systems or customized configurations with in-house manufactured components.

Product overview

Dr. Thiedig is a specialized manufacturer of high-quality sampling and analysis systems for power plants, chemical/petrochemical industry, and beverage industry. The company offers a comprehensive modular product portfolio centered around Steam and Water Analyzing Systems (SWAS) that combines sampling components (coolers, valves, pressure reducers, filters) with proprietary analyzers (Digox series for oxygen, silica, sodium, phosphate, hydrogen, hydrazine, conductivity). The product range includes modular sampling stations, analyzers (Digox 602, Digox 6.1, Oxyflux, CatCon), various valve types (VD, VE, VS, PE series), sampling coolers (PE 02/03/20), cation exchangers, and complete turnkey systems including analysis containers and laboratories. All major components are manufactured in-house to ensure highest quality, reliability, and precision.

Differentiator

Problem solved

Functional benefit

Products and services

• Steam and Water Analyzing Systems (SWAS) Complete turnkey sampling and analyzing systems for water-steam cycles in power plants (conventional, nuclear, supercritical), combining modular sampling components with proprietary analyzers for continuous water chemistry monitoring to prevent corrosion and deposits.
• Maintenance, Commissioning and Engineering Services Professional services covering maintenance, commissioning, installation, engineering, testing procedures, and piping/welding for Dr. Thiedig equipment, with service engineers providing maintenance contracts to ensure functional safety and operational readiness.
• Probenahmekühler PE 02 Sample Cooler Standard high-pressure sampling cooler for water and steam up to 268 bar and 550°C, featuring 55 kW cooling capacity and high cooling water flow velocities.
• Probenahmekühler PE 03 Sample Cooler Compact sampling cooler with integrated sample thermometer, intended for the basic equipment package of sampling systems.
• Probenahmekühler PE 20 (NPP) Sample Cooler Special cooler designed for nuclear power plant applications for liquid media and steam with temperatures up to 400°C and pressures up to 268 bar, suitable for sample streams up to 250 l/h.
• Digox 602 Phosphate Analyzer Analyzer for measuring dissolved ortho-phosphate in the 0.05–60 ppm range using the Vanadate method, with automatic calibration, built-in mixed-bed ion exchanger for blank value determination, up to 6 channels, and batch operation for extended measurement intervals.
• Digox 602 Silica Analyzer Analyzer for the concentration of silicic acid (silica) in pure water using a precision photometer, monitoring silicate concentration in water-steam cycles in the lower ppb range.
• Digox 602 Sodium Analyzer Analyzer for sodium concentration determination in pure water using Na-selective electrodes with automatic calibration, monitoring Na-concentration in water-steam cycles in the lower ppb range.
• Digox Optical K-S Oxygen Analyzer Analyzer for dissolved oxygen determination using the dynamic fluorescence quenching principle; requires no membrane or electrolyte and operates independently of CO2 concentration.
• Digox 6.1 K S Dissolved Oxygen Meter Dissolved oxygen meter for ppb-range measurements in pure water with robust sensor and automatic calibration, available in stationary and portable variants.
• Digox Optical Inline Beverage Oxygen Analyzer Compact inline oxygen measuring device with hygienic design for the beverage industry, using the dynamic fluorescence quenching principle with inline calibration capability.
• Digox 6.1 EC Beverage Oxygen Analyzer Oxygen analyzer for dissolved oxygen traces in beverages with robust sensor and automatic calibration for continuous operation.
• Digox 6.1 H2-S Hydrogen Analyzer Hydrogen measuring device for dissolved hydrogen up to 10 ppm and gas-phase hydrogen up to 5 vol-% using a fuel cell sensor, with approximately 10-year maintenance-free operation.
• Digox 6.1 HY Hydrazine Analyzer Hydrazine analyzer for dissolved hydrazine traces in pure water with robust sensor designed for continuous operation in power plant sampling systems.
• Oxyflux 6.1 NPP Dissolved Oxygen Analyzer Dissolved oxygen measuring device specifically developed for nuclear power plant applications, measuring dissolved oxygen traces in the sub-ppb range even at conductivity below 1.5 µS/cm.
• Digox 602 DAC Analyzer Analyzer for acid conductivity (cation conductivity) after CO2 removal, used in water-steam cycle monitoring.
• Sonderventil VD 70 Special High-Pressure Valve Special valve for extremely high pressures up to 10,000 bar and temperatures up to 620°C in sampling systems, available with bellows seal for nuclear power plant applications.
• VD 30 Shut-off and Fine-Regulation Valve Universal valve for pressure regulation up to 64 bar (usable up to 400 bar) with 3 mm seat diameter, functioning as fine regulation valve, shut-off valve, and for pressure reduction.
• Hochdruck-Absperrventil VD 65 High-Performance Shut-off Valve High-performance shut-off valve for the highest operating conditions, with cooling fin attachment reducing stem packing temperature by approximately 200 K.
• Hochdruck-Absperrventil VD 50 Universal Shut-off Valve High-performance universal shut-off valve with relubricating stem packing and differential thread.
• Linear-Reduzierventil VC 50 Capillary Valve Capillary valve for highly accurate flow adjustment and reduction of high system pressures up to 400 bar with minimal wear.
• Druckreduzierventil VE 50 Pressure-Reducing Valve High-quality valve for pressure reduction with nuanced adjustment options, usable up to 320 bar at 200°C.
• Druckminderer VS 61 NPP Pressure Reducer Valve specially developed for nuclear power plant applications for reducing input pressures up to 250 bar to a constant adjustable output pressure of 0–12 bar.
• Druckminderer PE 28 Adjustable Pressure Reducer Adjustable pressure reducer for input pressures up to 414 bar at up to 80°C, reducing to constant output pressures of 0–17 bar.
• CatControl edi Automatically Regenerating Cation Exchanger Automatically regenerating cation exchanger using electro-deionization with a special membrane that selectively removes cations from the sample stream, enabling upgrades of existing systems to latest acid/degassed acid conductivity standards.
• Kationentauscher PE 14 / CatControl 6 Cation exchanger for measuring conductivity before and after the cation filter, enabling pH value determination per VGB guideline with integrated sensors.
• Kationentauscher PE 15/16 High-quality cation exchanger for neutralizing alkalinization agents in samples, enabling residual conductivity measurement for quality control with regenerable exchange resin.
• AutoFlow Automatic Flow Control Automatic flow control for sampling systems that maintains sample flow constant during pressure fluctuations, enabling reliable automated flow control at adjustable setpoints between 15–65 l/h and process pressures up to 400 bar.
• PE 74.8X.00 AutoSafe 6 Temperature Protection Device Mechanical temperature protection valve that protects downstream analysis systems and personnel from excessive thermal stress, functioning without auxiliary power with manual reset.
• Probenahmestation (Sampling Station) High-quality frame for space-saving and easily accessible organization of sampling equipment, including cooling water system, drain basin, and connection box.
• Probenahme-/Analysencontainer (Sampling/Analysis Container) Climate-controlled container for organized arrangement of sampling process elements, suitable for outdoor installation with optional autonomous cooling water supply.
• Analysenschränke (Analysis Cabinets) High-quality, air-conditioned cabinet for space-saving organization of analysis components.
• Vakuumprobenahme (Vacuum Sampling System) Sampling system for reliable measurement under vacuum using special pump systems for vacuum extraction without distortion of the sample.
• Mobile PE Mobile Sampling and Analysis Station Mobile sampling and analysis stations for use where fixed installed analysis systems are not applicable, connectable to existing sampling points.

Quantifiable outcome

• One reagent set lasts for up to 4,700 measurements with calibration solution lasting up to 6 months for Digox 602 phosphate
• +1 more outcomes

Named customers18 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature5 records

Partnerships

One partnership is on record.

• Dr. Leye GmbHcoreStrategic or Co-development Partner · 20 October 2026Dr. Leye GmbH is a subsidiary of Dr. Thiedig that complements the portfolio with sampling and analysis instrumentation for power plants and solutions for automation in water treatment and wastewater processing. They exhibit together at industry events such as the vgbe-Chemiekonferenz.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Endress+Hauser: Global process instrumentation leader offering analyzers, samplers and components (Liquiline, Stamolys, Topaline) for water/steam cycles and beverages. Listed as a customer but also a competitor on standard measurement parameters.
• Emerson (Rosemount): Provides Rosemount and Rosemount Analytical instruments including conductivity, pH and power-plant analytical solutions. Large global incumbent overlapping on core chemistry parameters.
• ABB Measurement & Analytics: Industrial analytics division of ABB providing pH, conductivity, sodium, silica and silica-phosphate analyzers (Navigator, Aztec) widely deployed in power plant steam/water chemistry. Major global incumbent.
• Hach (Danaher): Large-scale industrial water analytics division of Danaher, with broad online analyzers for conductivity, sodium, silica, phosphate used in power plant and ultrapure water applications. Larger incumbent with overlapping parameters.
• Yokogawa Electric: Japanese process automation and analytical instrument maker (EXA, FLXA series) used in power plant water chemistry and industrial process monitoring. Overlaps in conductivity, pH and trace measurement.

Regional players

• Georg Fischer (GF Piping Systems): Swiss piping and flow components supplier for industrial water and chemical process systems, with overlap on high-pressure valves, fittings and sample conditioning pipework used alongside Dr. Thiedig systems.

Direct peers

• Swan Analytical Instruments: Swiss manufacturer of online water and steam chemistry analyzers (AMI, CACE, NCC) for power plants and industrial water. Closest direct competitor to Dr. Thiedig, competing head-to-head in SWAS, cation conductivity and trace analytics.
• Bürkert Fluid Control Systems: German-headquartered manufacturer of fluid handling and analytical components including online water analysis and sampling valves. Overlaps with Dr. Thiedig's modular sample-conditioning and valve portfolio.
• Sentry Equipment Corp: US-based specialist in sampling systems and sample conditioning panels for power plants and process industries. Competes in the same SWAS, sample cooler and conditioning rack niche.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dr. Thiedig