Custom Desuperheaters Sized to Your Steam Conditions

B-Tech Valve sizes desuperheaters for the customer’s application, considering the steam system and pipe configuration. The Steam Attemperator is specifically described as sized for each customer’s application, while the product range includes small-pipe spray-ring and large-pipe probe-type designs. Customers can provide their operating and installation details for application-specific guidance.

The SPAD Small Pipe Attemperator Desuperheater uses a fixed-nozzle spray ring and clamps between two steam pipe flanges. The LPD Large Pipe Desuperheater uses a fully actuated variable-nozzle control valve and desuperheater, with probe-type insertion at 90 degrees for steam pipes 6 inches and larger.

The listed desuperheater products are available in ASME B16.34 pressure classes 150, 300, 600, 900, 1500, 2500 and 2700. The appropriate class depends on the steam system and application requirements. B-Tech Valve can review the operating conditions and installation details to help identify a suitable pressure-class configuration.

The SPAD, Steam Attemperator and LPD products are rated for temperatures up to 1200°F (650°C), as stated in their product information. Final selection should account for the actual steam conditions, control requirements, pipe arrangement and applicable pressure class for the installation.

The SPAD and Steam Attemperator product information specifies that water is fed from a separate temperature control valve. This arrangement supports controlled water injection into the steam stream. The required control approach and associated equipment should be evaluated against the customer’s operating conditions and steam-conditioning objectives.

These products are used in power plants and process plants for steam attemperation and equipment protection. Listed objectives include improving steam heat transfer, increasing steam flow, protecting piping and steam traps, protecting rotating seals, decreasing boiler loads and reducing fuel costs.