Wide Turndown
Variable-area and steam-atomising designs achieve control across turndown ratios exceeding 50:1.
SAMHWA
Steam conditioning with surgical precision.
Desuperheaters
Precise steam temperature control through engineered water injection and rapid atomisation.
Overview
Engineered desuperheaters, done properly.
SAMHWA desuperheaters control superheated steam temperature by injecting finely atomised cooling water directly into the steam flow. Our range spans simple fixed-nozzle units to variable-area, steam-assisted and probe-style designs able to control within 3 °C of saturation across wide turndown.
Correct desuperheater selection is critical to downstream equipment protection. Our engineers analyse steam velocity profiles, straight-run lengths, water quality and control philosophy to select and size the optimal technology for each installation.
Features
Designed in the details.
Close Approach
Temperature control to within 3 °C above saturation with fast-response thermal sleeves.
Erosion-Resistant Trim
Stellited and hardened internals for high-pressure letdown and abrasive feedwater services.
Integrated Control
Supplied with spraywater control valves, thermowells and complete steam-conditioning skids.
Any Orientation
In-line venturi, probe-type and elbow-mounted configurations to suit existing pipework.
Rapid Vaporisation
Optimised droplet spectra ensure complete evaporation within the shortest possible absorption length.
Applications
Where it earns its keep.
Turbine bypass systems
Process steam conditioning
Boiler outlet temperature control
District heating steam supply
Paper machine steam systems
Refinery letdown stations
Power plant start-up systems
Food-safe culinary steam
Specifications
The numbers that matter.
| Types | Fixed nozzle, variable area, steam-assisted, probe |
|---|---|
| Steam pressure | 0.5 – 180 barg |
| Steam temperature | Up to 600 °C |
| Turndown | Up to 50:1 (steam-assisted) |
| Control approach | 3 °C above saturation |
| Materials | SA106, SS316, F22, F91, stellited trim |
| Codes | ASME B31.1/B31.3, PED, EN 12952 |
| Scope | Unit only or complete PRDS skid |
Full datasheets, sizing software outputs and drawings available on request — contact our engineers.
Gallery
In the workshop and in the field.
Related Products
Complete the system.
Specify desuperheaters with confidence.
Send us your process conditions — flow, fluids, temperatures and pressures — and receive a technical proposal within 48 hours.