Desuperheater Advantages

Turndown ratio		Compact designs		Outlet superheat		Materials
Pressure drop		Design codes		Water conditions		Orientation

Materials

Standard materials of construction for Graham desuperheaters are:

Up to 800 degrees F	carbon steel externals with 304 stainless steel nozzle
800 degrees F to 950 degrees F	100% 1-1/4 chromium - 1/2 molybdenum
950 degrees F to 1100 degrees F	100% 2-1/4 chromium - 1 molybdenum
Over 1100 degrees F	austenitic stainless steel (304 or 316 stainless steel)

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