Develops and manufactures analytical instruments and system solutions for gas and water analysis – Made in Germany.
Gröger & Obst Vertriebs- und Service GmbH
Wolfratshausen (Hans-Urmiller-Ring 24)New on Amplifa
About Gröger & Obst
Gröger & Obst is an owner-managed family company based in Wolfratshausen in Upper Bavaria that has been developing and manufacturing instruments for gas and water analysis since 1986. The portfolio includes TOC online measuring instruments (e.g. GO-TOC P, GO-TOC 100 P), online gas analyzers such as GO-ATC and GO-Mini-ATC, sample gas conditioning systems (GOT 100/GOT 200), sample gas cooling systems, heated gas extraction probes as well as filter and sample preparation systems such as the paper band filter GO-PBF. The instruments are developed, configured and manufactured at the company headquarters; the electronic measuring component basis is formed by analyzers of the Siemens Ultramat series or water analyzers from ABB. Fields of application include wastewater treatment plants and sewage systems, refineries, the chemical and petrochemical industry, airports, drinking and process water monitoring, laboratories, cleanrooms as well as immission and emission monitoring. In addition, the company offers consulting, commissioning, maintenance, repair service, spare parts and a rental device service (1 week to 3 months).
- Site
- Wolfratshausen
- Processes
- TOC online measurement (water analysis, continuous, thermal-catalytic oxidation with, Gas analysis (online measurement of CH4, CO2, O2, SO2, ATC/total carbon), Sample and sample gas conditioning (filtration, dust removal, drying, stripper systems,, Sample preparation water analysis with paper band filter GO-PBF (filtration 50–100 µm, flow rate up, Sample gas conditioning GOT 100 (Peltier cooler with cyclone heat exchanger, filter, permeation, Instrument construction/manufacture of analytical instruments (development and realization at the, Repair service for pumps and electrical parts (also third-party devices), function and electrical, Rental of ATC and TOC analytical instruments (1 week to 3 months)
- Materials
- Polyester/GRP, Stainless steel, Plastic housing, Glass (gas path), PP (gas path), PVC (gas path), PTFE (gas path), PVDF (gas path)
- Founded
- 1986
- Industries
- Municipal and industrial wastewater disposal, Refineries, Chemical and petrochemical industry, Airports / aerospace, Drinking and process water monitoring, Water quality control / environmental monitoring
- 01
Consulting and individual configuration
- 02
Development at the company headquarters
- 03
Procurement of measuring components (e.g. Siemens Ultramat, ABB)
- 04
Instrument construction and assembly
- 05
Function and safety testing
- 06
Commissioning, maintenance, repair and spare parts service
Materials and Processes
Stainless steel
Optionally on the paper band filter GO-PBF for use under demanding conditions.
Polyester/GRP and plastic housings
Robust housing materials for paper band filters and peristaltic pumps.
PTFE, PVDF, PP, PVC, acrylic, glass
Materials for gas paths in sample gas conditioning (GOT 100/GOT 200) for chemically stable gas routing.
Locations
Wolfratshausen
DECompany headquarters: development, production, sales and service
- Materials
- Stainless steel, plastics (PP, PVC, PTFE, PVDF, acrylic), polyester/GRP
- TOC analyzer GO-TOC P
- TOC measuring system GO-TOC 100 P
- Online gas analyzer GO-ATC
- Sample gas conditioning GOT 100 / GOT 200
- Sample gas cooling systems GO-PK series
- Paper band filter GO-PBF
- Peristaltic pump GO-4KPP
- Siemens Ultramat measuring components
- ABB water analyzers
Products and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| TOC online measurement (water analysis, continuous, thermal-catalytic oxidation withTesting | – | – | – | – | – |
| Gas analysis (online measurement of CH4, CO2, O2, SO2, ATC/total carbon)Testing | Measuring accuracy up to 5 ppb | – | – | – | – |
| Sample and sample gas conditioning (filtration, dust removal, drying, stripper systems,Engineering | – | – | – | – | – |
| Sample preparation water analysis with paper band filter GO-PBF (filtration 50–100 µm, flow rate upEngineering | – | 500 x 400 x 200 mm (housing) | approx. 13 kg | – | Polyester/GRP, Stainless steel |
| Sample gas conditioning GOT 100 (Peltier cooler with cyclone heat exchanger, filter, permeationEngineering | – | – | – | – | Glass, PP, PVC, PTFE, PVDF, Acrylic |
| Instrument construction/manufacture of analytical instruments (development and realization at theAssembly | – | – | – | – | – |
| Repair service for pumps and electrical parts (also third-party devices), function and electricalTesting | – | – | – | – | – |
| Rental of ATC and TOC analytical instruments (1 week to 3 months)Assembly | – | – | – | – | – |
11 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| TOC analyzer | Gröger & Obst GO-TOC P | – | Mounting plate 1.70 x 0.70 m | – | Wolfratshausen |
| TOC measuring system | Gröger & Obst GO-TOC 100 P | – | – | – | Wolfratshausen |
| Online gas analyzer (ATC) | Gröger & Obst GO-ATC | – | – | – | Wolfratshausen |
| Compact gas measuring device | Gröger & Obst GO-Mini-ATC | – | – | – | Wolfratshausen |
| Sample gas conditioning system | Gröger & Obst GOT 100 / GOT 200 | – | – | – | Wolfratshausen |
| Paper band filter | Gröger & Obst GO-PBF | – | Flow rate up to 2 l/min; filter size 50–100 µm | – | Wolfratshausen |
| Sample gas cooling system | Gröger & Obst GO-PK 1 / GO-PK 2 / GO-EPK / GO-PKK 1 | – | Cooling temperature +5 to +8 °C, cooling capacity 110 kJ/h, flow rate 50–120 l/h | – | Wolfratshausen |
| Gas extraction probe (heated) | Gröger & Obst GO-MO 3 | – | – | – | Wolfratshausen |
| Peristaltic pump (4-channel) | Gröger & Obst GO-4KPP | – | – | – | Wolfratshausen |
| Electronic measuring components for online measuring instruments (Ultramat series, series 6) | SIEMENS Ultramat | – | – | – | Wolfratshausen |
| Analyzers for water analysis | ABB | – | – | – | Wolfratshausen |
Additional services
Reference customers
History
- 1986
Foundation of the family company by Helmut Gröger in Upper Bavaria (initially in Stockdorf); specialization in the development and manufacture of instruments for gas and water analysis.
- 1999
Start of the long-standing customer relationship with Vienna Airport, which has been using GO-TOC analyzers since 1999.