Spray Ring Desuperheaters for 4 Inch and Smaller Pipe

This category is intended for steam pipes 4 inches and smaller. The SPAD Small Pipe Attemperator Desuperheater clamps between two steam pipe flanges, providing a compact installation approach for small-pipe applications. Final sizing should consider the customer’s steam conditions, required temperature control, pressure class and installation arrangement.

The spray ring desuperheater is installed by clamping it between two steam pipe flanges. This flange clamp mounting method places the fixed-nozzle spray ring in the steam flow path while feedwater is provided from a separate temperature control valve. Connection details and pressure-class selection should be reviewed against the existing piping arrangement.

The product information lists ASME B16.34 pressure classes 150, 300, 600, 900, 1500, 2500 and 2700. The appropriate class depends on the steam system’s design requirements and connection configuration. B-Tech Valve can review the application details to help identify a suitable pressure-class option for the installation.

The listed temperature rating is up to 1200°F (650°C). Actual suitability depends on the complete operating conditions, including steam temperature, pressure, water injection requirements and piping arrangement. Application review is recommended to confirm that the selected spray ring desuperheater aligns with the intended service conditions.

The products are identified for power plants and process plants. Typical purposes include protecting piping and steam traps, protecting rotating seals, increasing steam heat-transfer capability and supporting increased steam flow. The equipment may also help decrease boiler loads and reduce fuel costs when correctly applied within the steam system.

The spray ring desuperheater is fed water from a separate temperature control valve. This arrangement supplies the water needed for steam temperature conditioning while keeping the spray ring’s fixed-nozzle design in the pipe assembly. The control-valve arrangement and water conditions should be evaluated as part of the complete application and sizing review.