Desuperheater Inquiry Information

Most desuperheating applications can be accommodated with one of our three designs:

• SA - Steam-Atomizing desuperheaters can handle large flow variations at a reasonable cost.  Recommended whenever atomizing steam is available.
• SV-1 - Double-Venturi desuperheaters are our most commonly sold style and can accommodate most desuperheating applications.
• SV-2 - Single-Venturi desuperheaters have limited capability and a very low cost.

The table below can help you determine if a Graham desuperheater can accommodate your requirements.  Fill out the Desuperheater Inquiry Form and submit your inquiry to Application Engineering.  We will quote within 3-5 days, sooner if needed.

	SA*	SV-1	SV-2
Turndown ratio	50:1	7:1 (10:1 vertical)	2:1 (3:1 vertical)
Outlet temperature	10°F SH	10°F SH	20°F SH
Pressure drop	Negligible	Low	Negligible
Minimum pipe size	3"	2"	1-1/2"
Available styles

 *SA units require atomizing steam pressure to be 1.9 times higher than the main steam pressure.