Shanghai Wei-Mi Techonology Co., LTD
主营:REXROTH电磁阀,ATOS比例阀,PARKER柱塞泵,DUPLOMATIC齿轮泵,VICKERS叶片泵,BENTLY传感器,AIRTEC机械阀,AVENTICS气动阀
13524125780
4WRTE25E220L-46/6EG24K31/A1M比例控制阀 德国原装博世力士乐REXROTHi比例阀比例控制阀 原装供应
我公司现货供应博世力士乐(BOSCH-REXROTH)、阿托斯ATOS、派克Parker、迪普马DUPLOMATIC、油研YUKEN;本特利bentley、贝加莱B&R、西门子、光洋KOYO,美国ASCO,美国PARKER派克 等系列进口产品
4WRTE25E220L-46/6EG24K31/A1M比例控制阀
液压伺服控制系统
以伺服控制元件完成动力与运动方向控制,综合压力、流量、方向控制为一体,利用偏差控制进行纠偏,以满足精度控制需要,必须为闭环控制,可实现较高频率( 100HZ以上) ,有滑阀式、喷嘴挡板式、射流管式等,常采用机械伺服、电液伺服、气液伺服。
液压比例控制系统
以比例控制元件完成动力与运动方向控制,分为比例压力阀、比例流量阀、比例方向阀及比例方向流量阀,可为模拟量输入或数字量输入,视是否带反馈分为开环控制与闭环控制,一般获得频率不是很高(10HZ)以内,高频响阀可实现较高频率。
若精度要求不高可考虑使用电液比例控制系统,一般电液比例控制系统可达至以下精度
位置精度- 3 mm
速度精度带压力补偿器- 3%
加减速斜坡时间-0.5秒
压力带位移传感器的产品-比例压力阀设定的0.3% (如压力设定为200bar,精度可达0.6bar)
一般的多驱动器液压系统皆要求流量及压力控制,提供比例压力及流量控制系统
开环式比例压力及流量控制可用于定量泵及变量泵系统。
速度和流量比例控制的分别是:
流量控制只控制供油量,并不控制驱动元件的运动方向;
若系统负载及变速要求高,则要使用速度控制系统。
速度比例控制多用于自动化控制、注塑机、压力机等
比例阀用于模拟控制,是介于普通开关控制与伺服控制之间的控制方式,它也特别适合于
设备的革新或改造。使设备自动化控制水平大为提高。其在现代液雌系统中占比例很大口
与普通液压阀相比.比例阀的优点是:①能简单地实现远距离控制:②能连续地、按比例地控制液压系统的压力和流量。从而实现对执行机构的位置、速度和力的连续控制,并能防止或减小压力、速度变换时的冲击;③油路简化,元件数量少。
比例阀适用于既要求能连续控制胀力、流量.和方向.而又不需要很I的控制精度的场合。
4WRTE25E220L-46/6EG24K31/A1M比例控制阀
4WRTE型阀门是带电位置反馈,集成电子元件(OBE)和可选阀芯位置监控的先导式方向控制阀。
设置
该阀主要由3个主要组件组成:
带有主级控制阀芯(2)和可选阀芯位置监控(13)的壳体(1)
集成电子设备(可选带电子保护膜(14))和主级感应位置传感器(3)
先导控制阀(4),带控制阀芯/阀座单元(5),感应式位置传感器(6)和压力反馈,用于主级控制阀芯(2)的中心位置
功能
在比例电磁阀(7; 8)失电的情况下,由于定心弹簧(9)和压力反馈,主级控制阀芯(2)的中心位置
通过先导控制阀(4)控制主级控制阀芯(2)→主级控制阀芯(2)以可调节的方式定位
通过改变比例电磁阀(7; 8)的电磁力来控制先导控制阀(4)的控制阀芯
集成电子设备中命令和实际值的连接
先导油从内部通过油口P或从外部通过X口供应给先导控制阀先导油从内部通过油口T或从外部通过Y返回到油箱
电子设备以0 V的指令值将中央控制阀芯(2)控制在中央位置
阀芯位置监控
主级控制阀芯(2)的阀芯位置由感应式位置开关(13)检测,并通过两个带有预设逻辑的开关输出显示。如果超出了固定设置的开关点,则会在控制阀芯重叠内监控从零位置的偏离(请参见“附件”)。
开关信号可用于监控功能的高等控制中。电气连接通过一个4极连接器M12x1单独实现,该连接器具有两个用于信号输出的引脚和两个用于电压供应的引脚。
应用领域
该阀可用于与安全相关的两通道应用(根据EN 13849-1的类别3,PL d和类别4,PL e),作为一个通道的关闭元件。该阀门符合EN 60204规定的安全启动舒缓器的要求,停止类别为0。
如果需要安全要求,则必须根据以下要求安全地断开阀门的电源电压:
要求的安全等级(PL类)。
根据EN 13849-1的应用和特定于工作设备的标准的要求,用户必须提供符合要求的适当监控/合理性检查
诊断覆盖率DCavg使用高等控件。
电子保护膜“ -967”
为防止在集成电子设备(OBE)的外壳中形成冷凝水,请使用电子设备保护装置
可以使用膜(14)。
建议在环境空气湿度高且循环温度变化显着的行业标准条件之外(例如室外)使用。
电源电压故障
集成电子设备可在电源故障或电缆断线时使螺线管断电
通过先导控制阀在控制室(10和11)中的同一高度进行自动压力控制
在压力供应出现故障的情况下,通过对中弹簧(9)对主级控制阀芯进行对中。
主级控制阀芯的中央位置(2)
注意事项:
电源电压故障将导致控制轴突然停止。在这种情况下出现的加速力可能会导致机器损坏。
在控制阀芯符号E,E1,W6-和W8-的情况下,对中弹簧(9)将主级控制阀芯(2)置于中心位置,控制阀芯V-和V1切换到较好方向P至B,并且A至T的公差范围为控制阀芯行程的1%至较大11%。
PG接头(12)不得打开。禁止对位于下方的调节螺母进行机械调节,否则会损坏阀门。
零点已在工厂进行了调整。零点的变化可能会导致系统损坏,并且只能由经过培训的专业人员执行。
如果更换了先导控制阀或电子设备,则必须由经过培训的相关人士再次调整零位。
4WRTE25E220L-46/6EG24K31/A1M比例控制阀型号
力士乐REXROTH三位四通高响应换向阀、先导式、电气位置反馈和集成电子放大版(OBE)4WRTE
R901446566 4WRTE10V100S-4X/6EG24K31/A1M
R901025623 4WRTE10V25L-4X/6EG24EK31/A5M
R901446035 4WRTE10W8-25L-4X/6EG24EK31/F1M
R900969573 4WRTE10X00L-4X/6EG24ETK31/A1M-592
R901246077 4WRTE16E1-125L-4X/6EG24EK31/F1M
R901106977 4WRTE16E1-125L-4X/6EG24ETK31/A5M
R901124941 4WRTE16E1-125L-4X/6EG24TK31/A1M
R901159979 4WRTE16E1-125L-4X/6EG24TK31/A5M
R901228628 4WRTE16E1-125P-4X/6EG24EK31/A1M
R901389045 4WRTE16E1-150L-4X/6EG24ETK31/A5M
R901416033 4WRTE16E1-200L-4X/6EG24EK31/A1V
R901126495 4WRTE16E1-200L-4X/6EG24ETK31/A1V
R901276446 4WRTE16E1-200L-4X/6EG24ETK31/A5M-280
R901254937 4WRTE16E1-200L-4X/6EG24ETK31/A5M=LB
R901126382 4WRTE16E1-200L-4X/6EG24K31/A1V
R901126879 4WRTE16E1-200L-4X/6EG24K31/F1V
R901072855 4WRTE16E1-200L-4X/6EG24TK31/A5M
R901214476 4WRTE16E1-200P-4X/6EG24ETK31/A1M
R901206232 4WRTE16E1-200P-4X/6EG24ETK31/A5M
R900978843 4WRTE16E125L-4X/6EG24K31/A5M=LB
R901098097 4WRTE16E125L-4X/6EG24TK31/A5M
R901101121 4WRTE16E125P-4X/6EG24ETK31/A5WB15M
R901348142 4WRTE16E125P-4X/6EG24TK31/A5M-280
R901347769 4WRTE16E125R-4X/6EG24K31/A5M
R901388971 4WRTE16E150R-4X/6EG24K31/A5M
R901117758 4WRTE16E200L-4X/6EG24EK31/A5V
R900978844 4WRTE16E200L-4X/6EG24K31/A5M=LB
R901358702 4WRTE16E200L-4X/6EG24K31/F1V
R901347336 4WRTE16E200L-4X/6EG24TK31/A1V
R901422660 4WRTE16E200L-4X/6EG24TK31/F1M
R901268326 4WRTE16E200P-4X/6EG24EK31/A1M
R901144748 4WRTE16E200P-4X/6EG24ETK31/A1M
R901188629 4WRTE16E200P-4X/6EG24K31/A5WB15M
R901422656 4WRTE16E200P-4X/6EG24TK31/A1V
R901171943 4WRTE16E200P-4X/6EG24TK31/F1M
R901348137 4WRTE16E200R-4X/6EG24K31/A5M
R901313717 4WRTE16E200R-4X/6EG24TK31/A5M=LB
R900971602 4WRTE16E200S-4X/6EG24K31/A1WB152M
R901418231 4WRTE16E220L-4X/6EG24ETK31/A1M
R901430240 4WRTE16E220L-4X/6EG24K31/A1M
R901424974 4WRTE16E220L-4X/6EG24TK31/A1M
R901389044 4WRTE16E220R-4X/6EG24K31/A5M
R901415983 4WRTE16E3-125L-4X/6EG24ETK31/A1M
R901126877 4WRTE16E3-125L-4X/6EG24ETK31/F1V
R901252955 4WRTE16E4-200P-4X/6EG24K31/A5WB15M
R901097075 4WRTE16E5-200L-4X/6EG24ETK31/A5M
R901197284 4WRTE16M200P-4X/6EG24K31/A5M
R901196877 4WRTE16Q2-125L-4X/6EG24K31/F1V
R901405462 4WRTE16Q2-125L-4X/6EG24TK31/A1M
R901415121 4WRTE16Q2-125P-4X/6EG24EK31/A5M
R901123138 4WRTE16Q2-125P-4X/6EG24TK31/A5WB16V
R901213226 4WRTE16Q2-200P-4X/6EG24EK31/A1M
R901405324 4WRTE16Q2-200P-4X/6EG24EK31/A5M
R901223846 4WRTE16R125P-4X/6EG24ETK31/A1M
R901072668 4WRTE16R200L-4X/6EG24ETK31/A1M
R901112854 4WRTE16R200P-4X/6EG24ETK31/A1M
R901154950 4WRTE16R3-125L-4X/6EG24EK31/A1M
R901426750 4WRTE16R3-125L-4X/6EG24ETK31/A5M
R901170474 4WRTE16R3-125S-4X/6EG24K31/A1M
R901227932 4WRTE16R3-200P-4X/6EG24ETK31/A1M
R901374537 4WRTE16R3-220L-4X/6EG24EK31/A1M
R901374548 4WRTE16R3-220S-4X/6EG24K31/A1M
R901170385 4WRTE16R5-125L-4X/6EG24TK31/A5M
R901397248 4WRTE16R5-125P-4X/6EG24K31/A1M
R901433490 4WRTE16R5-200L-4X/6EG24ETK31/A1M
R901096983 4WRTE16R5-200P-4X/6EG24K31/A1M
R901363208 4WRTE16V1-125L-4X/6EG24EK31/A1V
R901298087 4WRTE16V1-125L-4X/6EG24K31/A5M-280
R901187219 4WRTE16V1-125S-4X/6EG24EK31/A1M
R901254431 4WRTE16V1-125S-4X/6EG24K31/F1M
R901416677 4WRTE16V1-150L-4X/6EG24ETK31/F1M
R901443976 4WRTE16V1-150L-4X/6EG24K31/A1M
R901127120 4WRTE16V1-200L-4X/6EG24EK31/F1M
R901103321 4WRTE16V1-200L-4X/6EG24ETK31/A1M
R901376650 4WRTE16V1-200L-4X/6EG24ETK31/A5M
R901162450 4WRTE16V1-200L-4X/6EG24ETK31/F1V
R901185886 4WRTE16V1-200L-4X/6EG24K31/A5WB15M
R901149096 4WRTE16V1-200L-4X/6EG24TK31/A1M
R901257945 4WRTE16V1-200L-4X/6EG24TK31/A1M-280
R901230397 4WRTE16V1-200P-4X/6EG24ETK31/A1WB15M
R901213130 4WRTE16V1-200P-4X/6EG24K31/A5WB15M
R901404220 4WRTE16V1-220L-4X/6EG24ETK31/F1M
R901391761 4WRTE16V1-220L-4X/6EG24K31/A1M
R901193784 4WRTE16V125L-4X/6EG24EK31/F1M
R901357473 4WRTE16V125L-4X/6EG24ETK31/A1M-280
R901291751 4WRTE16V125L-4X/6EG24ETK31/F1V
R901077099 4WRTE16V125L-4X/6EG24K31/A1V
R901234830 4WRTE16V125L-4X/6EG24K31/F1WB15V
R901198219 4WRTE16V125L-4X/6EG24TK31/A5M
R901088207 4WRTE16V125P-4X/6EG24EK31/A1M
R901356075 4WRTE16V125P-4X/6EG24EK31/A5V
R901330659 4WRTE16V125P-4X/6EG24EK31/F1M
R901221998 4WRTE16V125P-4X/6EG24ETK31/A1M-280
R901266916 4WRTE16V125P-4X/6EG24K31/A1M-280
R901221950 4WRTE16V125P-4X/6EG24K31/F1M
R901241695 4WRTE16V125P-4X/6EG24TK31/A1M-280
R901083707 4WRTE16V125P-4X/6EG24TK31/A5M
R901253124 4WRTE16V125P-4X/6EG24TK31/F1M
R901293623 4WRTE16V125P-4X=6EG24ETK31/A1M-280
R901407803 4WRTE16V150P-4X/6EG24ETK31/F1M
R901327734 4WRTE16V200L-4X/6EG24EK31/A5V-280
R901187295 4WRTE16V200L-4X/6EG24EK31/F1M
R901358846 4WRTE16V200L-4X/6EG24EK31/F1V
R978917253 4WRTE16V200L-4X/6EG24ETK31/A1V
R901407755 4WRTE16V200L-4X/6EG24ETK31/F1V
R901123964 4WRTE16V200L-4X/6EG24K31/A5WB15M
R901229027 4WRTE16V200L-4X/6EG24K31/F1V
R901250624 4WRTE16V200L-4X/6EG24K31/F1WB15V
R901434726 4WRTE16V200L-4X/6EG24TK31/A5M
R901212059 4WRTE16V200P-4X/6EG24ETK31/A1WB15M
R901130262 4WRTE16V200P-4X/6EG24ETK31/A5M
R901095835 4WRTE16V200P-4X/6EG24ETK31/F1M
R901085919 4WRTE16V200P-4X/6EG24K31/A1V-280
R901150475 4WRTE16V200P-4X/6EG24TK31/A5M-280
R901404221 4WRTE16V220L-4X/6EG24ETK31/F1M
R901398534 4WRTE16V220L-4X/6EG24K31/A1M
R901395195 4WRTE16V220P-4X/6EG24ETK31/F1M
R901081737 4WRTE16W6-125L-4X/6EG24EK31/F1M
R901194400 4WRTE16W6-125L-4X/6EG24ETK31/F1V
R901235032 4WRTE16W6-125L-4X/6EG24ETK31/F1WB15M
R901360708 4WRTE16W6-125L-4X/6EG24K31/A5M
R901243521 4WRTE16W6-125L-4X/6EG24K31/F1M
R901023555 4WRTE16W6-200L-4X/6EG24EK31/A5WB15M
R901363200 4WRTE16W6-200L-4X/6EG24EK31/F1V
R901158353 4WRTE16W6-200L-4X/6EG24TK31/F1M
R901355488 4WRTE16W6-200S-4X/6EG24K31/A1M-909
R901374543 4WRTE16W6-220S-4X/6EG24K31/A1M
R901227855 4WRTE16W8-125L-4X/6EG24EK31/A5M
R901293575 4WRTE16W8-125L-4X/6EG24EK31/F1V
R901407858 4WRTE16W8-125L-4X/6EG24ETK31/F1V
R901094205 4WRTE16W8-125L-4X/6EG24K31/A1V
R901211498 4WRTE16W8-125L-4X/6EG24K31/F1M
R901174795 4WRTE16W8-125L-4X/6EG24TK31/A1M
R901205493 4WRTE16W8-125L-4X/6EG24TK31/F1M
R901349389 4WRTE16W8-125S-4X/6EG24K31/A1V
R901269519 4WRTE16W8-125S-4X/6EG24K31/A5M
R901423131 4WRTE16W8-150L-4X/6EG24EK31/F1M
R901428660 4WRTE16W8-150L-4X/6EG24ETK31/F1M
R901406483 4WRTE16W8-150L-4X/6EG24K31/A1M
R901420829 4WRTE16W8-150L-4X/6EG24K31/F1M
R901093969 4WRTE16W8-200L-4X/6EG24ETK31/F1M
R901407671 4WRTE16W8-200L-4X/6EG24ETK31/F1V
R901336857 4WRTE16W8-200L-4X/6EG24K31/A1V-942
R901155001 4WRTE16W8-200L-4X/6EG24K31/F1M
R901403250 4WRTE16W8-200L-4X/6EG24K31/F1V
R901419689 4WRTE16W8-200L-4X/6EG24TK31/A1M
R901205490 4WRTE16W8-200L-4X/6EG24TK31/F1M
R901407860 4WRTE16W8-200P-4X/6EG24ETK31/F1V
R900961636 4WRTE16W8-200S-4X/6EG24K31/A1WB152M
R901428621 4WRTE16W8-220L-4X/6EG24ETK31/F1M
R901430352 4WRTE16W8-220L-4X/6EG24K31/F1M
R901388745 4WRTE16W9-220P-4X/6EG24K31/A5M
R901098188 4WRTE25E1-220L-4X/6EG24EK31/F1M
R901287218 4WRTE25E1-220L-4X/6EG24ETK31/F1M
R901281728 4WRTE25E1-220L-4X/6EG24K31/A1WB15M
R901276449 4WRTE25E1-350L-4X/6EG24ETK31/A5M-280
R901185519 4WRTE25E1-350L-4X/6EG24ETK31/A5WB15M
R901366874 4WRTE25E1-350L-4X/6EG24ETK31/F1M
R901082243 4WRTE25E1-350L-4X/6EG24K31/A1WB15M
R901429088 4WRTE25E1-350L-4X/6EG24TK31/A5M
R901214477 4WRTE25E1-350P-4X/6EG24ETK31/A1M
R901259462 4WRTE25E1-350P-4X/6EG24ETK31/F1M
R901407512 4WRTE25E1-350P-4X/6EG24K31/A1M
R901326977 4WRTE25E1-350P-4X/6EG24K31/F1M
R901322181 4WRTE25E1-350P-4X=6EG24K31/A5M
R978031519 4WRTE25E220L-4X/6EG24EK31/A5V
R901380698 4WRTE25E220L-4X/6EG24ETK31/F1M
R901377869 4WRTE25E220L-4X/6EG24K31/F1M
R901365359 4WRTE25E220P-4X/6EG24ETK31/A1M
R901385029 4WRTE25E350L-4X/6EG24EK31/F1M
R901281604 4WRTE25E350L-4X/6EG24ETK31/A5M-280
R901125194 4WRTE25E350L-4X/6EG24ETK31/F1M
R901349958 4WRTE25E350L-4X/6EG24K31/A1V
R900978845 4WRTE25E350L-4X/6EG24K31/A5M=LB
R901318439 4WRTE25E350L-4X/6EG24K31/F1M
R978917234 4WRTE25E350L-4X/6EG24TK31/A1M
R901119127 4WRTE25E350L-4X/6EG24TK31/F1M
R901135448 4WRTE25E350P-4X/6EG24ETK31/A1V
R901229276 4WRTE25E350P-4X/6EG24K31/F1M
R900729353 4WRTE25E350P-4X/6EG24TK31/A1WB152M
R901358772 4WRTE25E350R-4X/6EG24K31/A5M
R900964305 4WRTE25E4-350S-4X/6EG24K31/A1WB152M
R901207542 4WRTE25Q1-350L-4X/6EG24TK31/A5M
R901165591 4WRTE25Q2-350P-4X/6EG24K31/A1M
R901131249 4WRTE25Q2-350P-4X/6EG24K31/A5WB162M
R901164412 4WRTE25R1-350L-4X/6EG24K31/A1WB15M
R901386799 4WRTE25R3-350R-4X/6EG24K31/A5M
R901130652 4WRTE25R3-350R-4X/6EG24K31/A5M=LB
R901258098 4WRTE25V1-220L-4X/6EG24EK31/A5M-280
R901208731 4WRTE25V1-220L-4X/6EG24EK31/F1M
R901093962 4WRTE25V1-220L-4X/6EG24ETK31/A5M
R901272302 4WRTE25V1-220L-4X/6EG24K31/A5M-280
R901144221 4WRTE25V1-220L-4X/6EG24K31/F1V
R901341547 4WRTE25V1-220L-4X/6EG24TK31/A1M
R901271687 4WRTE25V1-220P-4X/6EG24EK31/A1M
R901317685 4WRTE25V1-220P-4X/6EG24EK31/F1M
R901364023 4WRTE25V1-350L-4X/6EG24EK31/A1V
R901143740 4WRTE25V1-350L-4X/6EG24EK31/A5M-280
R901093689 4WRTE25V1-350L-4X/6EG24EK31/F1M
R901355848 4WRTE25V1-350L-4X/6EG24ETK31/F1M
R901291879 4WRTE25V1-350L-4X/6EG24ETK31/F1V
R901271689 4WRTE25V1-350P-4X/6EG24EK31/A1M
R901372417 4WRTE25V1-350P-4X/6EG24EK31/A1V
R901403913 4WRTE25V1-350P-4X/6EG24K31/F1V
R901417524 4WRTE25V220L-4X/6EG24ETK31/F1M
R901138769 4WRTE25V220L-4X/6EG24K31/A1WB15M
R901168171 4WRTE25V220L-4X/6EG24TK31/A1M
R901212530 4WRTE25V220P-4X/6EG24EK31/A1M
R901184457 4WRTE25V220P-4X/6EG24ETK31/A1V-280
R901392994 4WRTE25V220P-4X/6EG24K31/A5V
R901353348 4WRTE25V220P-4X/6EG24TK31/F1M
R901263616 4WRTE25V350L-4X/6EG24EK31/F1M
R901097361 4WRTE25V350L-4X/6EG24K31/A1WB15M
R901322880 4WRTE25V350L-4X/6EG24TK31/A1M
R901268849 4WRTE25V350P-4X/6EG24EK31/F1M
R901301442 4WRTE25V350P-4X/6EG24EK31/F1V
R901409258 4WRTE25V350P-4X/6EG24ETK31/F1M
R901384714 4WRTE25V350P-4X/6EG24K31/A5M
R901352984 4WRTE25V5-350P-4X/6EG24TK31/A5M
R901212956 4WRTE25W6-220L-4X/6EG24EK31/F1M
R901417696 4WRTE25W6-220L-4X/6EG24K31/A1V
R901341954 4WRTE25W6-220L-4X/6EG24K31/F1M
R901342143 4WRTE25W6-220L-4X/6EG24K31/F1V
R978007766 4WRTE25W6-350L-4X/6EG24ETK31/A5M
R901207007 4WRTE25W6-350L-4X/6EG24ETK31/F1V
R901235033 4WRTE25W6-350L-4X/6EG24ETK31/F1WB15M
R978919344 4WRTE25W6-350L-4X/6EG24K31/A5M
R901079443 4WRTE25W6-350L-4X/6EG24K31/F1M
R901215670 4WRTE25W6-350L-4X/6EG24K31/F1V
R901223160 4WRTE25W6-350P-4X/6EG24ETK31/A1M
R901212529 4WRTE25W6-350P-4X/6EG24K31/F1M
R901293999 4WRTE25W8-220L-4X/6EG24EK31/F1V
R901093690 4WRTE25W8-220L-4X/6EG24K31/A1M
R901155089 4WRTE25W8-220L-4X/6EG24K31/F1M
R901403887 4WRTE25W8-220L-4X/6EG24K31/F1V
R901207350 4WRTE25W8-220L-4X/6EG24TK31/F1M
R901090630 4WRTE25W8-350L-4X/6EG24EK31/A1V
R901370619 4WRTE25W8-350L-4X/6EG24EK31/A5M-280
R901091326 4WRTE25W8-350L-4X/6EG24EK31/A5V
R901322335 4WRTE25W8-350L-4X/6EG24ETK31/A5M=LB
R901121430 4WRTE25W8-350L-4X/6EG24ETK31/F1M
R901322980 4WRTE25W8-350L-4X/6EG24ETK31/F1V
R901094207 4WRTE25W8-350L-4X/6EG24K31/A1V
R901076888 4WRTE25W8-350L-4X/6EG24K31/F1M
R901444957 4WRTE27E1-500L-4X/6EG24EK31/A1WB15M
R901225328 4WRTE27E1-500L-4X/6EG24EK31/A5M
R901339436 4WRTE27E1-500L-4X/6EG24EK31/A5V
R901380593 4WRTE27E1-500L-4X/6EG24ETK31/F1M
R901016732 4WRTE27E1-500L-4X/6EG24K31/A1M
R901356860 4WRTE27E1-500L-4X/6EG24K31/A5M
R901349435 4WRTE27E1-500L-4X/6EG24K31/F1M
R901117791 4WRTE27E1-500P-4X/6EG24EK31/A1M
R901174766 4WRTE27E500L-4X/6EG24EK31/A1M
R901254425 4WRTE27E500L-4X/6EG24EK31/F1M
R901349438 4WRTE27E500L-4X/6EG24K31/F1M
R901422545 4WRTE27E500L-4X/6EG24TK31/A1M
R901127618 4WRTE27E500P-4X/6EG24K31/A5M
R901120326 4WRTE27Q2-500P-4X/6EG24K31/A1M
R901132052 4WRTE27Q2-500P-4X/6EG24K31/A5WB15M
R901218944 4WRTE27R500L-4X/6EG24ETK31/A5M
R901116051 4WRTE27V1-500L-4X/6EG24EK31/F1M
R901356557 4WRTE27V1-500L-4X/6EG24ETK31/A1M
R901119763 4WRTE27V1-500L-4X/6EG24ETK31/A5M
R901180641 4WRTE27V1-500L-4X/6EG24ETK31/F1M
R901310512 4WRTE27V1-500L-4X/6EG24K31/A1M
R901284895 4WRTE27V1-500L-4X/6EG24K31/A5M
R901349441 4WRTE27V1-500L-4X/6EG24K31/F1M
R901309465 4WRTE27V500L-4X/6EG24ETK31/F1M
R901110479 4WRTE27V500L-4X/6EG24K31/F1M
R901212549 4WRTE27V500P-4X/6EG24EK31/A1M
R901185058 4WRTE27V500P-4X/6EG24EK31/F1M
R901351160 4WRTE27V500P-4X/6EG24ETK31/F1M
R901349445 4WRTE27W6-500L-4X/6EG24K31/F1M
R901072889 4WRTE27W6-500L-4X/6EG24K31/F1V
R901359422 4WRTE27W8-500L-4X/6EG24EK31/F1M
R901094203 4WRTE27W8-500L-4X/6EG24K31/A1V
R901162070 4WRTE27W8-500L-4X/6EG24K31/A5M
R901097371 4WRTE27W8-500L-4X/6EG24K31/F1M
R901403261 4WRTE27W8-500L-4X/6EG24K31/F1V
R901321580 4WRTE27W8-500P-4X/6EG24K31/A5M
R901180765 4WRTE32E1-400L-4X/6EG24K31/A1WB15M
R901253094 4WRTE32E1-600L-4X/6EG24EK31/F1V
R901225556 4WRTE32E1-600L-4X/6EG24ETK31/A1M
R901145118 4WRTE32E1-600L-4X/6EG24ETK31/A5WB15M
R901307562 4WRTE32E1-600L-4X/6EG24ETK31/F1M
R901190181 4WRTE32E1-600L-4X/6EG24K31/A1V
R901160745 4WRTE32E1-600L-4X/6EG24K31/A1WB15M
R901262579 4WRTE32E1-600L-4X/6EG24K31/A5M
R901349447 4WRTE32E1-600L-4X/6EG24K31/F1M
R901131400 4WRTE32E400L-4X/6EG24K31/A1V
R901238652 4WRTE32E400L-4X/6EG24K31/F1M
R901066924 4WRTE32E600L-4X/6EG24ETK31/A5M
R901131398 4WRTE32E600L-4X/6EG24K31/A1V
R901307116 4WRTE32E600L-4X/6EG24K31/A1WB15M
R901349451 4WRTE32E600L-4X/6EG24K31/F1M
R901374965 4WRTE32E600P-4X/6EG24ETK31/A1V
R901445270 4WRTE32E600P-4X/6EG24ETK31/F1M
R901412101 4WRTE32E600P-4X/6EG24ETK31/F1V
R901235556 4WRTE32E600P-4X/6EG24K31/A5M
R901174373 4WRTE32Q2-600P-4X/6EG24ETK31/A5M
R901164449 4WRTE32R1-600L-4X/6EG24K31/A1WB15M
R901323939 4WRTE32V1-600L-4X/6EG24EK31/A1M
R901362850 4WRTE32V1-600L-4X/6EG24K31/A1V
R901446711 4WRTE32V1-600P-4X/6EG24K31/A1M
R901190180 4WRTE32V400L-4X/6EG24K31/A1V
R901094076 4WRTE32V400L-4X/6EG24K31/A1WB15M
R901170733 4WRTE32V400P-4X/6EG24ETK31/A1V
R901126386 4WRTE32V400P-4X/6EG24ETK31/A1V-280
R901407812 4WRTE32V400P-4X/6EG24ETK31/F1M
R901352981 4WRTE32V400P-4X/6EG24K31/A1M
R901136768 4WRTE32V5-600P-4X/6EG24TK31/A1M
R901164193 4WRTE32V600L-4X/6EG24ETK31/A1M
R901190179 4WRTE32V600L-4X/6EG24K31/A1V
R901307348 4WRTE32V600P-4X/6EG24EK31/A1M-280
R901116727 4WRTE32V600P-4X/6EG24ETK31/A1V-280
R901412107 4WRTE32V600P-4X/6EG24ETK31/F1V
R901227848 4WRTE32V600P-4X/6EG24K31/A1M
R901160781 4WRTE32V600P-4X/6EG24TK31/A1V-280
R901384897 4WRTE32V600P-4X/6EG24TK31/A5M
R901392815 4WRTE32W6-400L-4X/6EG24EK31/F1M
R901269495 4WRTE32W6-400P-4X/6EG24K31/F1M
R901089845 4WRTE32W6-600L-4X/6EG24EK31/A1M
R901102528 4WRTE32W6-600L-4X/6EG24K31/A5M
R901216920 4WRTE32W6-600L-4X/6EG24K31/F1M
R987171978 4WRTE32W6-600P-4X/6EG24K31/A1M
R901295949 4WRTE32W8-400L-4X/6EG24EK31/A1M
R901287893 4WRTE32W8-400L-4X/6EG24ETK31/F1M
R901105809 4WRTE32W8-600L-4X/6EG24EK31/A5M
R901111511 4WRTE32W8-600L-4X/6EG24ETK31/F1M
R901178229 4WRTE32W8-600L-4X/6EG24K31/F1M
R901374555 4WRTE32-E600P-4X/6EG24K31/A1V
R901253763 4WRTE35E1-1000L-4X/6EG24EK31/F1V
R901187312 4WRTE35E1-1000L-4X/6EG24ETK31/A1M
R901077004 4WRTE35E1-1000L-4X/6EG24K31/A1M
R901242220 4WRTE35E1-1000L-4X/6EG24K31/A1V
R901161014 4WRTE35E1-1000L-4X/6EG24K31/A1WB15M
R901349455 4WRTE35E1-1000L-4X/6EG24K31/F1M
R901207448 4WRTE35E3-1000L-4X/6EG24K31/A1M
R901407244 4WRTE35Q2-1000L-4X/6EG24ETK31/A5M
R900972121 4WRTE35Q2-1000P-4X/6EG24ETK31/A1WB152M
R901206645 4WRTE35Q2-1000P-4X/6EG24ETK31/A5M
R901172061 4WRTE35Q2-1000P-4X/6EG24ETK31/A5WB15M
R901212804 4WRTE35V1-1000L-4X/6EG24ETK31/F1M
R901309469 4WRTE35V1000L-4X/6EG24ETK31/F1M
R901135021 4WRTE35V1000L-4X/6EG24K31/A5WB15M
R901360910 4WRTE35V1000P-4X/6EG24K31/A1M
R901116120 4WRTE35V1000P-4X/6EG24K31/A1M-280
R901294422 4WRTE35V1000P-4X=6EG24TK31/A1V-956
R901111512 4WRTE35W6-1000L-4X/6EG24EK31/F1M
R901120543 4WRTE35W6-1000L-4X/6EG24K31/A1M
R901349456 4WRTE35W6-1000L-4X/6EG24K31/F1M
R901250171 4WRTE35W8-1000L-4X/6EG24EK31/A1M
R901251104 4WRTE35W8-1000L-4X/6EG24EK31/A1V
R901097373 4WRTE35W8-1000L-4X/6EG24ETK31/F1M
R901307851 4WRTE35W8-1000L-4X/6EG24K31/F1M
R901146839 4WRTE35W9-1000L-4X/6EG24K31/A1M
力士乐REXROTH高响应方向阀,先导,带集成电控装置(OBE)和电气位置反馈4WRDE -5X
R900520213 4WRDE10E1-100L-5X/6L24Z9/MR
R900551052 4WRDE10E1-100P-5X/6L24Z9/MR
R900909723 4WRDE10E1-50L-5X/6L24EZ9/M
R900549110 4WRDE10E1-50L-5X/6L24Z9/M
R901065914 4WRDE10E100L-5X/6L24EK9/M-280
R900533830 4WRDE10E100L-5X/6L24ETZ9/M
R900562400 4WRDE10E100L-5X/6L24ETZ9/MR
R900571557 4WRDE10E100L-5X/6L24ETZ9/WG021M
R900523431 4WRDE10E100L-5X/6L24TZ9/M
R900571524 4WRDE10E100L-5X/6L24TZ9/MR
R900517119 4WRDE10E100P-5X/6L24ETZ9/MR
R900526696 4WRDE10E100P-5X/6L24TZ9/WG021MR
R900947763 4WRDE10E100S-5X/6L24K9/WX152M-643
R900562370 4WRDE10E25L-5X/6L24EZ9/M
R900508196 4WRDE10E25L-5X/6L24TZ9/M
R900516463 4WRDE10E50L-5X/6L24TZ9/M
R900511043 4WRDE10E50L-5X/6L24Z9/M
R900520414 4WRDE10E50P-5X/6L24Z9/MR
R900512409 4WRDE10Q1-100L-5X/6L24Z9/MR
R900505747 4WRDE10Q1-50L-5X/6L24ETZ9/M
R900516375 4WRDE10Q100L-5X/6L24EZ9/MR
R900546209 4WRDE10Q100P-5X/6L24EZ9/WG021M
R900902457 4WRDE10Q100P-5X/6L24Z9/M
R900566134 4WRDE10Q2-100P-5X/6L24ETZ9/WG021MR
R900572257 4WRDE10Q2-100P-5X/6L24ETZ9/WG151MR
R900517025 4WRDE10Q2-100P-5X/6L24Z9/M
R900519126 4WRDE10Q2-100P-5X/6L24Z9/WG021M
R900517201 4WRDE10Q2-100P-5X/6L24Z9/WG021MR
R900517117 4WRDE10Q2-100P-5X/6L24Z9/WG043VR
R900565807 4WRDE10R5-100R-5X/6L24ETZ9/WG021M-562
R900527097 4WRDE10V1-100L-5X/6L24ETZ9/M
R900513024 4WRDE10V1-100L-5X/6L24ETZ9/MR
R900510614 4WRDE10V1-100L-5X/6L24ETZ9/WG021M
R900512412 4WRDE10V1-100L-5X/6L24EZ9/MR
R900519413 4WRDE10V1-100L-5X/6L24TZ9/M
R900550274 4WRDE10V1-100P-5X/6L24Z9/V
R900520458 4WRDE10V1-100P-5X/6L24Z9/WG021MR-478
R900571558 4WRDE10V1-25R-5X/6L24ETZ9/M
R900527096 4WRDE10V1-50L-5X/6L24ETZ9/M
R900538264 4WRDE10V1-50L-5X/6L24EZ9/MR
R900522376 4WRDE10V1-50L-5X/6L24EZ9/MR-116
R900548005 4WRDE10V1-50L-5X/6L24TZ9/M-280
R900533904 4WRDE10V1-50L-5X/6L24TZ9/MR
R900532167 4WRDE10V1-50P-5X/6L24Z9/WG021MR
R900550176 4WRDE10V1-50S-5X/6L24Z9/WG021MR-478
R900516629 4WRDE10V100L-5X/6L24ETZ9/M
R900523829 4WRDE10V100L-5X/6L24ETZ9/M-509
R900552219 4WRDE10V100L-5X/6L24EZ9/M-509
R900908939 4WRDE10V100P-5X/6L24ETZ9/MR
R900563522 4WRDE10V100P-5X/6L24Z9/M
R900526925 4WRDE10V100P-5X/6L24Z9/MR-478
R900527506 4WRDE10V100P-5X/6L24Z9/WG011MR
R900529590 4WRDE10V25L-5X/6L24ETZ9/M
R900568493 4WRDE10V25L-5X/6L24ETZ9/V
R900513786 4WRDE10V25L-5X/6L24ETZ9/WG021M
R900514417 4WRDE10V25L-5X/6L24EZ9/MR
R900518222 4WRDE10V25L-5X/6L24Z9/M
R900532981 4WRDE10V25L-5X/6L24Z9/MR
R900550324 4WRDE10V25L-5X/6L24Z9/WG021V
R900536355 4WRDE10V25R-5X/6L24ETZ9/M
R901446213 4WRDE10V25R-5X/6L24K9/MR
R901281877 4WRDE10V50L-5X/6L24EK9/V
R900526332 4WRDE10V50L-5X/6L24EZ9/M
R900562367 4WRDE10V50L-5X/6L24EZ9/WG021M
R901047780 4WRDE10V50L-5X/6L24TK9/V
R900565665 4WRDE10V50L-5X/6L24TZ9/M
R900533210 4WRDE10V50P-5X/6L24TZ9/MR
R901144316 4WRDE10W1-100L-5X/6L24EK9/M
R900571728 4WRDE10W1-100L-5X/6L24ETZ9/MR
R901253049 4WRDE10W1-100P-5X/6L24ETK9/VR-280
R900549429 4WRDE10W1-100P-5X/6L24Z9/M
R900905401 4WRDE10W1-100P-5X/6L24Z9/V
R900549077 4WRDE10W1-50L-5X/6L24Z9/V
R901250341 4WRDE10W1-50P-5X/6L24ETK9/VR
R901253059 4WRDE10W1-50P-5X/6L24ETK9/VR-280
R901137741 4WRDE10W100L-5X/6L24EK9/MR
R900940470 4WRDE10W100L-5X/6L24ETK9/MR
R901250379 4WRDE10W100L-5X/6L24ETK9/VR
R900567493 4WRDE10W100L-5X/6L24ETZ9/M
R900528303 4WRDE10W100P-5X/6L24ETZ9/M
R900549260 4WRDE10W100P-5X/6L24Z9/M
R900567494 4WRDE10W25L-5X/6L24ETZ9/M
R900555508 4WRDE10W50L-5X/6L24ETZ9/M
R900551390 4WRDE10W50L-5X/6L24ETZ9/WG021M
R900934892 4WRDE10W50L-5X/6L24K9/WG021MR
R900562998 4WRDE10W50P-5X/6L24ETZ9/M
R900562592 4WRDE16E1-125L-5X/6L24EZ9/M
R900501483 4WRDE16E1-125L-5X/6L24EZ9/WG021M
R900538009 4WRDE16E1-125P-5X/6L24EZ9/WG021MR
R900558967 4WRDE16E1-125P-5X/6L24Z9/WG021MR
R900520214 4WRDE16E1-200L-5X/6L24TZ9/WG021MR
R900508858 4WRDE16E1-200L-5X/6L24Z9/WG081M-478
R900579313 4WRDE16E125L-5X/6L24ETZ9/M
R900905602 4WRDE16E125L-5X/6L24ETZ9/MR
R900577543 4WRDE16E125L-5X/6L24ETZ9/WG021M
R900513477 4WRDE16E125L-5X/6L24ETZ9/WG021MR
R900511045 4WRDE16E125L-5X/6L24Z9/M
R900522171 4WRDE16E125L-5X/6L24Z9/MR
R900546668 4WRDE16E125L-5X/6L24Z9/WG021M
R900903982 4WRDE16E125L-5X/6L24Z9/WG071M
R900562530 4WRDE16E125P-5X/6L24ETZ9/M-280
R900549355 4WRDE16E125P-5X/6L24EZ9/M
R900576576 4WRDE16E125P-5X/6L24TZ9/WG021M
R900546309 4WRDE16E125P-5X/6L24Z9/WG021M
R900947764 4WRDE16E125S-5X/6L24K9/WX152M-643
R900533297 4WRDE16E200L-5X/6L24Z9/MR
R900547148 4WRDE16E200P-5X/6L24ETZ9/M-280
R900517198 4WRDE16E200P-5X/6L24ETZ9/MR
R900533922 4WRDE16E200P-5X/6L24ETZ9/MR-280
R900936057 4WRDE16E200P-5X/6L24K9/MR-636
R900522817 4WRDE16E200P-5X/6L24TZ9/MR-280
R900576574 4WRDE16E200P-5X/6L24TZ9/WG021MR
R900574991 4WRDE16E200P-5X/6L24Z9/MR
R900901356 4WRDE16M200P-5X/6L24Z9/MR
R900508137 4WRDE16Q1-200L-5X/6L24Z9/M
R900512410 4WRDE16Q1-200L-5X/6L24Z9/MR
R900522075 4WRDE16Q1-200L-5X/6L24Z9/VR
R900564392 4WRDE16Q2-125P-5X/6L24TZ9/WG043VR
R900519339 4WRDE16Q2-125P-5X/6L24Z9/WG043M
R900518970 4WRDE16Q2-125P-5X/6L24Z9/WG043VR
R900514633 4WRDE16Q2-200P-5X/6L24Z9/M
R900527542 4WRDE16Q2-200P-5X/6L24Z9/MR
R900517199 4WRDE16Q2-200P-5X/6L24Z9/WG021MR
R900517116 4WRDE16Q2-200P-5X/6L24Z9/WG043VR
R900516374 4WRDE16Q200L-5X/6L24EZ9/MR
R900900190 4WRDE16R200R-5X/6L24Z9/VR
R900551803 4WRDE16R200R-5X/6L24Z9/VR-553
R900537439 4WRDE16R3-125R-5X/6L24Z9/WG021MR
R900555546 4WRDE16R5-125R-5X/6L24ETZ9/M
R900574707 4WRDE16V000S-5X/6L24Z9/WG021M-489
R900539219 4WRDE16V1-125L-5X/6L24EZ9/MR
R901049339 4WRDE16V1-125L-5X/6L24K9/WG152MR
R900554290 4WRDE16V1-125L-5X/6L24TZ9/MR
R900514415 4WRDE16V1-125P-5X/6L24EZ9/MR
R900903511 4WRDE16V1-200L-5X/6L24ETZ9/WG021MR
R900930192 4WRDE16V1-200L-5X/6L24TZ9/M
R900554848 4WRDE16V1-200L-5X/6L24TZ9/WG021MR
R900504272 4WRDE16V1-200L-5X/6L24Z9/MR
R900971032 4WRDE16V1-200P-5X/6L24K9/WG021VR
R900546917 4WRDE16V1-200P-5X/6L24Z9/WG021M
R900953276 4WRDE16V125L-5X/6L24EK9/MR
R901067238 4WRDE16V125L-5X/6L24ETK9/MR
R900934526 4WRDE16V125L-5X/6L24ETK9/WG162MR
R900510540 4WRDE16V125L-5X/6L24ETZ9/MR
R900577641 4WRDE16V125L-5X/6L24Z9/MR-280
R900526960 4WRDE16V125L-5X/6L24Z9/MR-478
R900528533 4WRDE16V125L-5X/6L24Z9/WG021M
R900560986 4WRDE16V125L-5X/6L24Z9/WG021MR-478
R900573785 4WRDE16V125P-5X/6L24ETZ9/M
R900560821 4WRDE16V125P-5X/6L24Z9/WG021MR-478
R900550318 4WRDE16V125R-5X/6L24Z9/VR-553
R900507820 4WRDE16V200L-5X/6L24ETZ9/MR
R900549050 4WRDE16V200L-5X/6L24ETZ9/WG021M
R900908322 4WRDE16V200L-5X/6L24EZ9/MR
R901052545 4WRDE16V200L-5X/6L24TK9/MR-280
R900564355 4WRDE16V200L-5X/6L24TZ9/M
R900548578 4WRDE16V200L-5X/6L24Z9/M
R900552850 4WRDE16V200L-5X/6L24Z9/M-202
R900538035 4WRDE16V200L-5X/6L24Z9/WG021M
R900500025 4WRDE16V200P-5X/6L24Z9/M
R900539233 4WRDE16V200P-5X/6L24Z9/MR
R900551802 4WRDE16V200P-5X/6L24Z9/VR-553
R900551246 4WRDE16V200R-5X/6L24Z9/M-580
R900550795 4WRDE16V200R-5X/6L24Z9/MR-202
R900575524 4WRDE16W1-125L-5X/6L24TZ9/M
R900911900 4WRDE16W1-125L-5X/6L24TZ9/WG021M
R900560818 4WRDE16W1-125L-5X/6L24Z9/M
R900574244 4WRDE16W1-125S-5X/6L24Z9/WG021M
R900575216 4WRDE16W1-200L-5X/6L24TZ9/M
R900911899 4WRDE16W1-200L-5X/6L24TZ9/WG021M
R900549076 4WRDE16W1-200L-5X/6L24Z9/V
R900549188 4WRDE16W1-200L-5X/6L24Z9/WG021V
R900569094 4WRDE16W1-200P-5X/6L24Z9/WG021MR
R900573174 4WRDE16W125L-5X/6L24ETZ9/M
R900553093 4WRDE16W125L-5X/6L24ETZ9/WG021M
R900571306 4WRDE16W125L-5X/6L24EZ9/M
R900538260 4WRDE16W125L-5X/6L24Z9/M
R900561460 4WRDE16W200L-5X/6L24TZ9/WG021MR
R900508656 4WRDE16W3-200P-5X/6L24EZ9/WG021MR
R900510201 4WRDE16W3-200P-5X/6L24Z9/WG021M
R900560317 4WRDE16W5-200L-5X/6L24ETZ9/WG021MR
R900929625 4WRDE25E1-220L-5X/6L24Z9/MR
R900506953 4WRDE25E1-350-5X/6L24Z9/WG021MR
R900508271 4WRDE25E1-350L-5X/6L24Z9/MR
R900507647 4WRDE25E1-350L-5X/6L24Z9/WG021MR
R900567491 4WRDE25E350L-5X/6L24ETZ9/M
R900522077 4WRDE25E350L-5X/6L24Z9/VR
R900522273 4WRDE25E350P-5X/6L24ETZ9/M
R900517601 4WRDE25E350P-5X/6L24TZ9/WG021MR
R900527543 4WRDE25E350P-5X/6L24Z9/WG021MR
R900511409 4WRDE25Q1-350L-5X/6L24Z9/WG021M
R900550406 4WRDE25Q1-350P-5X/6L24Z9/M
R900535614 4WRDE25Q2-350P-5X/6L24EZ9/WG021MR-453
R900515207 4WRDE25Q2-350P-5X/6L24EZ9/WG021MR-454
R900522952 4WRDE25Q2-350P-5X/6L24TZ9/M
R900527874 4WRDE25Q2-500P-5XH/6L24Z9/M
R900517024 4WRDE25Q2-500P-5XH/6L24Z9/WG021M
R900527544 4WRDE25Q2-500P-5XH/6L24Z9/WG021MR
R900574732 4WRDE25R3-350R-5X=6L24Z9/WG021MR=LB
R900524716 4WRDE25R350R-5X/6L24Z9/WG021MR
R900532406 4WRDE25V1-350L-5X/6L24TZ9/WG021MR
R900939571 4WRDE25V1-350P-5X/6L24ETK9/WG021MR
R900553563 4WRDE25V220S-5X/6L24EZ9/WG043M
R900510539 4WRDE25V350L-5X/6L24ETZ9/MR
R900557302 4WRDE25V350L-5X/6L24ETZ9/WG021M
R900551315 4WRDE25V350L-5X/6L24EZ9/M
R900534396 4WRDE25V350L-5X/6L24EZ9/MR
R900522616 4WRDE25V350L-5X/6L24Z9/VR
R900507569 4WRDE25V350P-5X/6L24Z9/M
R900904214 4WRDE25V350P-5X/6L24Z9/V
R900907090 4WRDE25V350P-5X/6L24Z9/WG021MR
R900546206 4WRDE25V500P-5XH/6L24Z9/M
R900940887 4WRDE25W500P-5XH/6L24K9/WG152M
重锤杠杆式安全阀是利用重锤和杠杆来平衡作用在阀瓣上的力。根据杠杆原理,它可以使用质量较小的重锤通过杠杆的加大作用获得较大的作用力,并通过移动重锤的位置(或变换重锤的质量)来调整安全阀的开启压力。
重锤杠杆式安全阀结构简单,调整容易而又比较准确,所加的载荷不会因阀瓣的升高而有较大的增加,适用于温度较高的场合,过去用得比较普遍,特别是用在锅炉和温度较高的压力容器上。但重锤杠杆式安全阀结构比较笨重,加载机构容易振动,并常因振动而产生泄漏;其回座压力较低,开启后不易关闭及保持严密。