Desuperheaters for Pulp and Paper Mills

Desuperheaters reduce excessive steam temperature before it reaches downstream equipment. This helps protect piping, steam traps and rotating seals from unsuitable thermal conditions. B-Tech Valve designs can also support steam flow optimisation and reduced boiler loads when correctly selected for the application, with the final configuration based on line size and operating requirements.

B-Tech Valve offers fixed-nozzle spray-ring designs and a probe-type variable-nozzle design. The SPAD Small Pipe Attemperator Desuperheater and Steam Attemperator clamp between steam pipe flanges, while the LPD Large Pipe Desuperheater uses a variable-nozzle actuated control valve with flanged insertion at 90 degrees on the steam pipe.

The listed products are available in ASME B16.34 pressure classes 150, 300, 600, 900, 1500, 2500 and 2700. Replacement parts are compatible with ASME B16.34 pressure classes from 150 through 2700. The appropriate pressure class should be selected against the steam system design and operating conditions.

The listed desuperheater products and replacement parts are rated for temperatures up to 1200°F (650°C). Actual selection should consider the steam temperature, pressure, water supply and downstream equipment requirements. B-Tech Valve can discuss the application information needed to identify a suitable configuration.

Sizing should account for steam pipe size, steam pressure and temperature, desired outlet conditions, water supply, installation arrangement and the downstream equipment being protected. B-Tech Valve offers products sized for each customer's application, including spray-ring units for smaller piping and probe-type variable-nozzle units for large piping.

Replacement Parts for Desuperheater Valves are available as American-made components for component-level installation. They are intended for applications including power plant and process plant steam systems, steam trap protection, rotating seal protection and steam flow optimisation. Compatibility should be checked against the existing valve design, pressure class and temperature requirements.