一、通用球阀用途球阀在石油、天然气、煤炭和矿石的开采、提炼加工和管道输送系统中；在化工产品、医药和食品生产种；在水电、火电和核电的电力生产系统中；在城市和工业企业的给排水、供热、和供气系统中；在农田的排灌系统中；在治金生产系统中得以广泛的应用，是一种与生产建设、国防建设和人民生活息息相关的重要机械产品。球阀密闭在各类管路系统种用于截断或接通介质流，使介质按照预定的程序输送到各个指定点。二、主要零件材料及性能阀体阀杆阀球密封面垫片填料工作温度适用介质WCB1Cr131Cr131Cr13司太立合金本体材料柔性石墨不锈钢加柔性石墨08软钢F304F316柔性石墨编结石墨-29-425℃水、蒸汽、油品WC615CrMo15CrMo-29-425℃WC925Cr2MoV25Cr2MoVLCB304304-46-354℃CF8304304-196-600℃部分酸、碱CF3304L304LCF8M316316CF3M316L316L三、特点及优点1、手动部分可采用钢板压制的手柄或不锈钢铸造的手柄。手柄设有限位结构，在阀门开启、关闭的位置设定限位，当阀门使用在关键装置上时，限位块上设有锁孔可锁定开关位置避免误操作。手柄上有明显地开和关标识。2、阀杆采用A182F（1Cr13）整体锻造并调制处理，硬度达到HB220～250。阀杆通过平键或花键或方契与手柄连接，通用性强，拆装方便。阀杆设有防吹出结构。3、阀门的填料选用编结、柔性石墨密封圈或四氟烯密封圈，使得阀杆在一定的润滑情况下实现可靠的密封。4、根据需要，球阀可设计成防静电结构，在球体与阀杆、阀杆与阀体之间设置导电弹簧，避免静电打火点燃易燃物质，确保系统安全。5、密封副形式多样。根据不同工况可选用软密封、硬密封、防火阀座等结构；DN150以下为浮球形式，DN200以下为固定球形式。6、球阀阀座处可设置辅助密封结构，在阀座和阀杆部位加装注脂阀，紧急情况下可暂时密封，并可根据需要加长阀杆以适宜埋地铺设得场所四、主要连接尺寸及重量Class150Lb公称通经DNNPS2"3"4"6"8"10"12"14"16"18"20"DN5080100150200250300350400450500d15176102152203254305337387438489LRF178203229394457533610686762864914BW216283305457521559635762838914991H1100110130175210274305340395440470H16590200270300380420450530560605W400700850600600600800800800800800E---116116116171171257257257F---350350350420420500500500WT(KG)245075195280440570800148023502400Class300Lb公称通经DNNPS2"3"4"6"8"10"12"14"16"18"20"DN5080100150200250300350400450500d15176102152203254305337387438489LRF178203229394457533610686762864914BW216283305457521559635762838914991H1100110130175210274305340395440470H16590200270300380420450530560605W400700850600600600800800800800800E---116116116171171257257257F---350350350420420500500500WT(KG)305895210318440575800184027002890Class400Lb公称通经DNNPS2"3"4"6"8"10"12"14"16"18"20"DN5080100150200250300350400450500d15176102152203254305337387438489LRF2923594064955976737628269029781054BW2953564104986006767658299059781060H111012014018522070310345410440480H180200210290320380430450550580630W400700850600600600800800800800800E---116116116171171257257257F---350350350420420500500500WT(KG)4172108232345480630870195028003250Class600Lb公称通经DNNPS2"3"4"6"8"10"12"14"16"18"20"DN5080100150200250300350400450500d15176102152203254305337387438489LRF29235943255966067383888999110921194BW29535643556266467684189299410951200RTJ29235643255966027083888999110921194H1110120140185220380310345410440480H180200210290320600430450550580630W4008501000600600116800800800800800E---11611535017117115083123F---350350480420420580650735WT(KG)326412026050070010981520230032503780Class900Lb公称通经DNNPS2"3"4"6"8"10"12"14"16"18"20"DN5080100150200250300350400450500d15176102152203254305324375425473LRF-BW3683814576107378389651029113012191334RTJ3713844606137408419681038114012191334H1135158190200250285350400480530580H190200230300375420460530600640700W600600600600800800800800800800800E1161161161711718383123123180180F350350350420420650650735735735735WT(KG)508017039064097015502150332045205320Class1500Lb公称通经DNNPS2"3"4"6"8"10"12"14"16"20"DN5080100150200250300350400500d15176102146194241289318362440LRF-BW3684705467058329911130125713841664RTJ37147354971184110001146127614071686H1140160200210260300365