1、每个阀门采用什么标准由“结构型式”确定。表1.4.12, 压力等级压力等级应用垫片应用螺栓/螺母PN(公制)CL(磅制)(最低要求)11.0石棉垫片35#/25#;35CrMoA/35#1a22.0150石棉垫片,缠绕垫片2a1.635.0300缠绕垫片35CrMoA/35#;25Cr2MoVA/35CrMo;0Cr18Ni9/0Cr18Ni93a2.546.84004a4.0(MF)510.0600缠绕垫片,八角形金属垫片25Cr2MoVA/35CrMo;/OCTAGON TYPE RING5a6.3缠绕垫片,6800715.0900八角形金属垫片/OCTAGON TYPE ASTM A19
2、4 B7/A194 2H;ASTM A194RING(或缺省) B16/A194 4;ASTM A453 660A/A194 8C825.01500八角形金属垫片/OCTAGON TYPE942.02500ACL150-CL800BC注: 每个阀门选用何种材料的垫片和螺栓、螺母由“阀体材料”确定。 对CL900.1500.2500三个等级的阀门,一般采用压力密封阀盖,此时“阀盖垫片”和“阀盖螺栓”项缺省。 等级1a、2a、3a、4a、5a适用于JB标准阀门。表1.4.13,结构型式结构型式结构型式解释应用标准结构长度标准BB-BG-OS&螺栓连接阀盖,螺栓连接压盖,明杆支架式API602/AP
3、I602MASME B16.10(BOLTED BONNET,BOLTED GLAND,OS&Y)DAPI603/API603MEY-N螺栓连接阀盖,螺栓连接压盖,明杆支架式,API602M针型结构(BOLTED BONNET,BOLTED GLAND,OS&Y ,NEDDLE TYPE)GBC-PISTON-LIFT螺栓连接阀盖,升降式(BOLTED BONNE,PISTON-LIFT)API603MY-W波纹管密封结构(BOLTED BONNET,BOLTED API600M南京流体工程机GLAND,OS&Y ,BELLOWS SEAL TYPE)械厂标准螺栓连接阀盖,螺栓连接压盖,明杆支
4、架式,低温LY-L密封结构(BOLTED BONNET,BOLTEDGLANDASME B16.34,OS&Y ,CRYOGENIC SERVICE SRRUCTURE)BC-SWING螺栓连接阀盖,旋启式(BOLTED BONNET,SWING)PS-PISTON-LIFT压力密封阀盖,升降式(PRESSURE SEAL BONNET,PISTON-LIFT)WAFER TYPE 对夹式止回阀API594(WAFER CHECK VALVE)TILTING-DISCTILTING-DISC 型止回阀(TILTING-DISC TYPE CHECK VALVE)Y-F螺栓连接阀盖,螺栓连接压盖
5、,明杆支架式,配特殊填料API600/API600MY,WITH SPECCIAL PACKING)螺栓连接阀盖,螺栓连接压盖,明杆支架式Y) Y-H螺栓连接阀盖,螺栓连接压盖,明杆支架式,带吹扫孔Y,WITH BLOMING HOLE) PS-BG-OS&压力密封阀盖,螺栓连接压盖,明杆支架式(PRESSURE SEAL BONNET,BOLTED GLAND,OS&PS-COVER SWING压力密封阀盖, 旋启式(PRESSURE SEAL BONNET, SWING)MBB-BG-M-SEAL动密封闸阀ASME 16.10表1.4.14,传动机构传动型式$手动电动/ELECTRIC M
6、OTOR OPERATED 气动/AIR MOTOR OPERATED 伞齿轮驱动/BEVEL GEAR OPERATED链条传动/REMOTE OPERATED WITH CHAIN 延长杆传动/OPERATED WITH EXTENDED STEMF远距离铰链联接杆传动(简称:远距离手动)/REMOTE OPERATED WITH JOINT & LEVER蜗轮蜗杆传动/表1.4.15,连接型式连接型式连接型式解释SSW承插焊/SOCKET WELDEDTNPT60 锥管螺纹/NATIONAL TAPER PIPE THREADRc55 锥管螺纹/55 TAPER PIPE THREADR
7、RF凸台面法兰连接/RAISED FACERJ环槽面法兰连接/RING JOINTWBW对焊连接/BUTTWELDEDPPIPE阀门两端各带一段150mm长的管子/EACH ENDWITH A 150mm SHORT PIPEMF(F)凹凸面连接(凹面)/MALE-FEMALE FACE(FEMALE)RF-NPT表1.4.16,阀体材质/BODY MATERIAL阀体材质/BODY公称压力阀盖垫片材料/GASKET阀盖螺栓材料BOLT/NET阀杆填料/PACKING1 锻造碳素钢类/FORGED CARBON STEEL CL150特制石棉垫片( 400耐油/酸/碱)35#/25# DN 4
8、0:304金属丝与柔 H1ASTM A105CL300,400,800304柔性石墨缠绕垫片性石墨编织填料CL600软铁,八角型金属垫片 DN 50:304金属丝与柔性石CL900-2500(缺省)墨编织填料柔性石墨环304聚四氟乙烯缠绕垫片H2ASTM A350-LF235CrMoA/35CrMoLF2,八角型金属垫片H3ASTM A350-LF3LF3,八角型金属垫片2 铸造碳素钢类/CAST CARBON STEEL 304金属丝与柔 J1ASTMCL300,400 A216-WCB 304金属丝与柔J2 A352-LCBJ3 A352-LC33 锻造合金钢(FORGED ALLOY S
9、TEEL) CL150,800K1ASTM A182-F15Cr-0.5Mo,八角型金属垫片K2ASTM A182-F1125Cr2MoVA/35CrMo表1.4.16,阀体材质(续)/BODY MATERIAL(CONTINUE)K3ASTM A182-F22K4ASTM A182-F5K5ASTM A182-F90Cr18Ni9,八角型金属垫片4 铸造合金钢(CAST ALLOY STEEL)L1 A217-WC1L2 A217-WC6L3 A217-WC9L4 A217-C5L5 A217-C125 锻造不锈钢(FORGED AUST.SS)M1ASTM A182-F304316柔性石墨缠绕垫片316金属丝与柔 M2A182-F3160Cr17Ni12Mo2,八角型金属垫片316金属丝与柔性石321柔性石墨缠绕垫片321金属丝与柔 M3A182-F3210Cr18Ni11Ti,八角型金属垫片321金属丝与柔性石M4A182-F347表1.4.16,阀体材质(续)/BODY MATERIAL(CONTIUE) CL800304H柔性石墨缠绕垫片304H金属丝与柔 M5A182-F304H304H,八角型金属垫片304H金属丝与柔性石墨编织填料柔性石墨环316H柔性石墨缠绕垫片
copyright@ 2008-2022 冰豆网网站版权所有
经营许可证编号:鄂ICP备2022015515号-1