SWAS – Steam & Water Analysis Systems for Reliable Power Plant Operation

Reliable sample conditioning ensures accurate water chemistry monitoring

Steam and high-temperature water from power plant processes cannot be measured directly.

A Steam & Water Analysis System (SWAS) prepares the sample by safely reducing pressure and temperature, controlling flow, and ensuring that analyzers receive a stable and representative sample stream.

A typical SWAS installation includes:

• pressure reduction stages
• sample cooling
• flow control and safety systems
• sample distribution to multiple analyzers

The conditioned sample is then analyzed continuously using online analyzers measuring key water chemistry parameters.

Continuous monitoring of critical water chemistry parameters

Once conditioned by the SWAS system, a range of analyzers can monitor the parameters that are essential for protecting steam-water cycles.

Typical measurements include:

• Conductivity and cation conductivity
• pH and redox (ORP)
• Dissolved oxygen
• Silica
• Sodium (trace contamination detection)
• Phosphate
• Turbidity or particle monitoring

Together, these measurements provide operators with early warning of contamination, condenser leaks, or chemical imbalance.

Designed for steam-water cycle monitoring in power plants

SWAS systems are widely used in facilities where steam and water chemistry must be tightly controlled.

Typical monitoring points include:

• Boiler feedwater
• Condensate systems
• Boiler drum water
• Steam purity monitoring
• Cooling water systems
• District heating and energy production plants

By monitoring these points continuously, you can detect problems early and prevent costly damage to turbines and boilers.