球阀(偏心半球阀)主要性能规范Mainspecificati***公称压力Nominalpressure0.61.01.62.02.54.05.06.410壳体试验压力Shelltestpressure0.91.52.43.03.86.07.59.615高压密封试验Highpressuretighttest0.661.11.82.22.84.45.57.111适用介质及温度℃Applicablemedia&TemperatureDYQ40型水、蒸汽、纸浆等溶液Water,vapor,pulp,andothersoluti***,t≤180℃DYQ40型***、煤气、液化气、***、重油Naturalgas,coalgas,liquefiedgas,crudeoil,andhe***yoil,t≤425℃DYQ40型溶液、矿浆、氧化***、煤粉、煤灰、含尘气体、废渣等Solution,Oreoar,Aluminapowder,coalfines,coalash,dustygas,wasteresidues,etc.t≤300℃偏心半球阀主要零件材质及代号Materialsandcodesofmainparts零件名称NameofpartDYQ40型DYQ40型DYQ40型阀体Valvebody碳钢WCB/不锈钢CF8CarbonsteelWCBstainlesssteelCF8碳钢WCB/不锈钢CF8CarbonsteelWCBstainlesssteelCF8碳钢WCB/不锈钢CF8CarbonsteelWCBstainlesssteelCF8阀杆Valvestem2Cr13/3042Cr13/3042Cr13/304阀芯密封副SealingsetforvalvebodyWCB/CF8+CrWCB/CF8+硬化合金钢WCB/CF8+Hardensalloysteel特种硬化合金钢质JK117/17Co合金SpecialhardenedalloysteelJK117/17Coalloysteel阀座密封副SealingsetforvalveseatPTFE/MolonWCB/CF8+硬化合金钢WCB/CF8+Hardensalloysteel特种硬化合金钢质JK117/17Co合金SpecialhardenedalloysteelJK117/17Coalloysteel说明：1、本偏心半球阀法兰连接尺寸按GB/T9113.1-ME/ANSI16.5规定的突面法兰；2、结构长度参照GB12221-2005，ASNEB16.10的规定；3、制造和验收技术条件参照GB12237-89，API6D；4、压力试验按JB/T9092-1999，GB/T13927-92，AP1598的要求。http://)