The Thornton 2850Si – Silica/Phosphate Analyzer is an online water chemistry analyzer that combines silica and phosphate measurement with multi-stream sample monitoring.
This configuration is designed for power generation facilities that need to evaluate multiple water sampling points while managing two important power-cycle chemistry parameters through one analyzer platform.
The assigned two-stream configuration supports silica and phosphate monitoring for applications where changes in water chemistry must be identified across separate sample locations.

Its combined measurement approach can help consolidate analytical instrumentation used within power plant water treatment and steam-cycle chemistry programs.
Key Characteristics
- Combines silica, phosphate, and multi-stream water chemistry monitoring in one analyzer platform
- Supports monitoring from two separate sample streams
- Designed for online power plant water chemistry measurement
- Provides an integrated approach to two measurement parameters that typically require different control strategies
- Part of the Thornton 2850Si family of silica and phosphate analyzers
Ideal Applications
- Power plant water chemistry monitoring
- Boiler-water phosphate treatment monitoring
- Silica measurement within power generation water systems
- Two-stream water sampling applications
- Cogeneration and steam-cycle water chemistry programs
Product Family Includes
- Thornton 2850Si silica-only Analyzers
- Thornton 2850Si Silica with Phosphate Analyzers
- Single-stream and multi-stream analyzer configurations
- Panel-mounted and enclosed configurations
- Configurations with integrated silica, phosphate, and sample-stream sequencing capabilities





