产品详细介绍 产品特点Features 该系列球阀特别适用于各焦化厂焦炉氨水、喷射循环系统高低压转换时使用。一、阀门的连接尺寸与原三通球阀相同，更换方便。二、特制的增强聚四氟乙烯封圈，其耐磨强度大大提高，显著提高密封圈的使用寿命。三、独特的内部结构，不仅大大降低了生产成本，而且使加工与维修更加简单化。四、带倒密封结构的下装式阀杆，不仅防止了阀杆脱出，而且阀杆部位的密封更加可靠。五、外型结构紧凑，独特三块式设计使阀门外观更完美。 Thevalveseriesareespeciallyapplicableforthehigh/low-temperatureconversioncourseinsuchfieldsastheammoniawaterincokeovensortheinjectioncirculatingsystemincokeplants.1.Theconnectiondimensionofthevalveisidenticaltothatoftheabove-mentioned3-wayballvalveforconvenientreplacement.2.Thespecially-designedsealringmadefromstrongpolytetrafluoroethylenewithmuchgreaterabrasionstrengthcouldobviouslyenhancetheservicelifeofthering.3.Thespecialinteriorstructureappliednotonlyreducestheproductioncostbutalsosimplifiestheprocessingandmaintenancework.4.Thelower-loadingStemwithbackwardsealingconstructionnotonlypreventsthehandleformbacking-outbutalsoensuresthereliabilityofthescalingpartofthehandle.5.Withcompactstructureinconfiguration,thespecially-designed3-partfeaturemakesthevalvemuchmoreperfect. 产品型号Producttype 零件名称Accessoryname 零件材料Accessorymaterial Q44M-40DN25 Q41F-40DN25 阀体、阀盖body,Bonnet WCB 球体Ball 1Cr18Ni9Ti 阀杆Stem 2Cr13 密封圈Sealingring 增强聚四氟乙烯RPTFE 填料Stuffing V型聚四氟乙烯V-shapedPTFE 主要连接尺寸 公称压力PN(MPa)Nominalpressure 试验压力(Mpa) 壳体Shell 高压液密封闭High-pressureliquidsealing 低压气密封Low-pressurehermeticsealing 4.0 6.0 4.4 0.6 适用温度Applicabletemperture ≤150℃ 氨水等Liquidammonia,etc.