BVT-DLH Steam attemperator with floating liner

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Made in: Sweden

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Attemperation is the process of controlling the amount of superheat in a boiler or a Heat Recovery Steam Generator (HRSG). Spray water is injected into the superheated steam, reducing its temperature. Spray water flow is controlled by an external water control valve and injected perpendicular to the steam flow using a series of spring-loaded spray water atomizing nozzles. The steam pipe is protected from thermal stresses by a floating liner which also acts as a flow profiler, increasing the relative steam velocity near the nozzles and improving evaporation.
The floating liner is installed without any welding, allowing it to move with the expansion of the material, making it more resistant to cycling.

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Warranty of at least 12 months according to manufacturer standards


090 997 5120

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Nozzle material
Inconel 718
Determined by spray water valve
Design pressure
Steam - 200 bar(g) 
Water - 320 bar(g)

Design temperature
Steam - 630 °C 
Water - 250 °C

Up to 6300 cycles / 25 years 
Horizontal installation or vertical with steam flowing upwards is recommended.