High Pressure Desuperheaters, Class 1500 to 2700

The product range includes ASME B16.34 pressure classes 150, 300, 600, 900, 1500, 2500 and 2700. This category focuses on Class 1500 through 2700 applications. Final selection should be based on the steam system, line size, operating conditions and application requirements.

The SPAD Small Pipe Attemperator Desuperheater uses a fixed-nozzle spray ring that clamps between two steam pipe flanges. The LPD Large Pipe Desuperheater uses a probe-type variable-nozzle, fully actuated control valve and installs through a 90° flanged insertion. The appropriate design depends on pipe size and control requirements.

The SPAD and Steam Attemperator designs are fed water from a separate temperature control valve. The LPD combines a variable-nozzle, actuated control valve and desuperheater in one assembly. Water control and sizing should be evaluated against the steam application to support the required temperature-conditioning performance.

The listed desuperheater products are temperature rated up to 1200°F (650°C). The applicable rating for a project should be checked against the operating conditions and selected configuration. B-Tech Valve can review application details and provide product information for systems requiring high-temperature steam conditioning.

Installation varies by design. The SPAD and Steam Attemperator clamp between two steam pipe flanges, while the LPD installs by 90° flanged insertion into the steam pipe. Product selection should account for the existing piping arrangement, line size, pressure class and access requirements.

The products are used in power plants and process plants. Typical stated applications include protecting piping and steam traps, protecting rotating seals, improving steam heat transfer, increasing steam flow, decreasing boiler loads and reducing fuel costs. B-Tech Valve designs and supplies application-sized equipment for these steam systems.