形式	减温减压阀组
公称通径	DN15～DN450 （1/2～18）
公称压力	PN10, 16，25，40，50, 64，100, 110, 150, 250, 320, 420 ANSI Class 150，300，600, 900, 1500, 2000, 2500
阀体及阀盖材质	WCB，CF8，CF8M，CF3，CF3M，WC1，WC6，WC9，LCB，LCC，LC3，哈氏C等
内件材质	304、304+Stellite、316L、316L+Stellite、2205、哈氏C等

Form style	Desuperheating and Pressure Reducing Valve Group
Nominal diameter	DN15~DN450 (1/2~18)
Nominal pressure	PN10, 16,25,40,50, 64,100, 110, 150, 250, 320, 420 ANSI Class 150,300,600, 900, 1500, 2000, 2500
Valve and bonnet material	WCB,CF8, CF8M, CF3, CF3M, WC1, WC6, WC9, LCB, LCC , LC3, Hastelloy C, etc.
Internal material	304,304+Stellite,316L, 316L+Stellite ,2205,ha C, etc.
Fill Material	V-type PTFE; flexible graphite; bellows
Traffic Features	equal percentage, linear, quick open
Leakage	Hard Seal: IV, V Soft Seal: Level VI
Connection method	Flange type (RF, MFM, RJ) Weld type (SW, BW)
bonnet type	Standard type, coolingType,Corrugated pipe seal type, low temperaturetype
Spool type	Single seat, sleeve, double seat

The desuperheating and pressure reducing valve group is installed in the system in combination with other valves or pipes, and usually has two types of decompression and two decompression.
Dual decompression is only used in working conditions. The system is not allowed to malfunction. It usually works all the way, and all the way is closed. As long as the flow is sufficient, it is not necessary to open the two decompression at the same time to avoid the valve opening too small. Oscillation and noise affect valve life.