Desuperheaters for Turbine Bypass Service

B-Tech Valve offers fixed-nozzle spray-ring designs, including the SPAD Small Pipe Attemperator Desuperheater and Steam Attemperator, along with the LPD Large Pipe Desuperheater. The LPD uses a variable-nozzle, fully actuated control valve and is intended for steam pipes 6 inches and larger. Replacement parts are also available for desuperheater valves.

The SPAD uses a fixed spray-ring design that clamps between two steam-pipe flanges. It receives water from a separate temperature-control valve. This arrangement is intended for smaller steam piping, with the final selection based on the application, piping configuration, pressure class, and operating temperature.

A variable-nozzle design can be considered when the application requires an actuated control valve and variable water-injection control. B-Tech Valve’s LPD Large Pipe Desuperheater combines these functions in one assembly and is designed for steam pipes 6 inches and larger, with sizing and selection based on the customer’s service conditions.

The listed desuperheater products are available in ASME B16.34 pressure classes 150, 300, 600, 900, 1500, 2500, and 2700. Availability depends on the specific product and configuration. Buyers should provide the steam-system pressure, temperature, line size, installation details, and control requirements for application review.

The listed products are rated for temperatures up to 1200°F (650°C). Actual suitability depends on the complete operating envelope, including steam conditions, injection-water conditions, pressure class, materials, piping arrangement, and control requirements. B-Tech Valve can review the application to help identify an appropriate configuration.

B-Tech Valve offers Replacement Parts for Desuperheater Valves, including American-made components compatible with the listed ASME B16.34 pressure classes from 150 through 2700 and temperatures up to 1200°F (650°C). Parts are stocked in-house according to the provided product information, supporting replacement work and reducing downtime risk.