此类型专用低温升压调节阀主要用于低温储槽、槽车和罐车的升压系统，广泛用于LNG、液态乙烯及其它低温介质，具有密封可靠、动作灵敏、压力稳定可靠和防静电的特点。Thistypeisspeciallow-temperaturestep-downregulatorismainlyusedforlowtemperaturestoragetank,tankcarandtankcarstep-downsystem,widelyusedinLNG,ethyleneandotherlowtemperatureliquidmedium,withreliablesealing,actionquick,thecharacteristicsofthepressureisstableandreliable,andanti-static.主要技术参数Maintechnicalparameters公称压力/Nominalpressure:4.0MPa设计温度/Designtemperature:-196℃～+80℃适用介质/Applicablemedium:LNG、LO2、LN2、LAr连接方式/Connectionmethod:螺纹主要零部件名称Maincomponentsname材料Materials阀体/ValvebodyZG0Cr18Ni9阀瓣/ValvediscHPb59-1主密封件/MainsealPTFE型号Model主要外形和连接尺寸Mainformandtheconnectionsize(mm)公称压力Nominalpressure调压范围ScopeofpressureadjustmentHH1W1W2M（MPa）（MPa）DYS-20239192100Ф1332-Rc¾PN-4.00.2~0.8DYS-20A255203100Ф1332-Rc¾PN-4.00.4~1.6)