
CESA Watertech develops and delivers CO₂ dosing systems and components for water treatment and pH neutralization.

CESA Watertech GmbH
St. Gallen (Switzerland)New on Amplifa
About CESA Watertech
CESA Watertech GmbH is a supplier based in St. Gallen, Switzerland, specializing in water treatment. The company plans, manufactures and installs CO₂ dosing systems for pH neutralization of water as well as associated components such as static mixers, ambient vaporizers and CO₂ tanks. It offers both turnkey CO₂ dosing solutions and the integration of individual components into existing plant infrastructures. The range of services includes needs analysis, process analysis, system design (pH targets, CO₂ dosing profiles, piping configuration, control logic), engineering and project management through to commissioning. According to its own statements, the systems reuse more than 2,500 kg of CO₂ per hour, process over 650 million liters of water per day and are in use in more than 16 countries. Target industries are water treatment, desalination and drinking water supply, with the aim of providing sustainable solutions to combat global water scarcity.
- Site
- St. Gallen
- Processes
- CO2 Dosing System, Static Mixing, Ambient Vaporizer, CO2 Tanks, pH Neutralization, Engineering & Project Management (needs analysis, process analysis, system design, integration,, CO₂ dosing systems (turnkey), Static mixing
- Materials
- CO₂ Dosing System, Static Mixing, Ambient Vaporizer, CO₂ Tanks, pH Neutralization, Engineering & Project Management
- Certificates
- Swiss Made / Swiss engineering standard
- Industries
- Water treatment, Desalination, Drinking water supply
- 01
Needs analysis
- 02
Process analysis
- 03
System design (pH targets, dosing profiles, piping, control logic)
- 04
Quotation
- 05
Manufacturing/delivery of the system components
- 06
Integration & commissioning
System Components & Processes
CO₂ Dosing System
Turnkey system for CO₂ dosing for pH neutralization and water treatment.
Static Mixing
Static mixers for homogeneous injection of CO₂ into water streams.
Ambient Vaporizer
Vaporizer component for ambient gas operation in CO₂ systems.
CO₂ Tanks
CO₂ tank systems for storage and supply of the dosing systems.
pH Neutralization
Sustainable pH neutralization to protect pipelines, plants and end users.
Engineering & Project Management
Full-scope project development from needs analysis through to commissioning.
Locations

St. Gallen
CHHeadquarters
- Materials
- CO₂ dosing systems, static mixing, ambient vaporizers, CO₂ tanks
Systems & Components



Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CO2 Dosing SystemEngineering | – | – | – | – | – |
| Static MixingEngineering | – | – | – | – | – |
| Ambient VaporizerEngineering | – | – | – | – | – |
| CO2 TanksEngineering | – | – | – | – | – |
| pH NeutralizationEngineering | – | – | – | – | – |
| Engineering & Project Management (needs analysis, process analysis, system design, integration,Engineering | – | – | – | – | – |
Additional services
Quality
CESA Watertech emphasizes Swiss engineering quality with precise tolerances, reliable operation and long service life, as well as continuous improvement across the entire project life cycle.
| Evidence | St. Gallen |
|---|---|
| Swiss Made / Swiss engineering standard |