上海韦米机电设备有限公司

4WRTE25E220L-4X/6EG24K31/A1M比例伺服阀 德国原装博世力士乐REXROTH比例阀 比例伺服阀 比例伺服控制系统 原装供应

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4WRTE25E220L-4X/6EG24K31/A1M比例伺服阀

比例阀对流量的控制可以分为两种：

一种是开关控制：要么全开、要么全关，流量要么大、要么小，没有中间状态，如普通的电磁直通阀、电磁换向阀、电液换向阀。

另一种是连续控制：阀口可以根据需要打开任意一个开度，由此控制通过流量的大小，这类阀有手动控制的，如节流阀，也有电控的，如比例阀、伺服阀。

所以使用比例阀或伺服阀的目的就是：以电控方式实现对流量的节流控制（当然经过结构上的改动也可实现压力控制等），既然是节流控制，就必然有能量损失，伺服阀和其它阀不同的是，它的能量损失更大一些，因为它需要一定的流量来维持前置级控制油路的工作。

伺服阀是-种根据输入信号及输出信号反馈量连续成比例地控制流量和压力的液压控制阀。根据输入信号的方式不同，又分电液伺服阀和机液伺服阀。电液伺服阀将小功率的电信号转换为大功率的液压能输出，实现执行元件的位移、速度、加速度及力的控制。

电液伺服阀由电气一机械转换装置、液压放大器和反馈(平衡)机构三部分组成。

电气一机械转换装置将输入的电信号转换为转角或直线位移输出，常称为力矩马达或力马达。

电液比例阀是一种性能介于普通控制阀和电液伺服阀之间的新阀种。它既可以根据输入电信号的大小连续成比例地对油液的压力、流量、方向实现远距离控制、计算机控制，又在制造成本、抗污染等方面优于电液伺服阀。

电液比例阀根据用途分为:电液比例压力阀，电液比例流量阀，电液比例方向阀。

电液比例阀的控制性能低于电液伺服阀，因此广泛应用于要求不高的一般工业部门。

4WRTE25E220L-4X/6EG24K31/A1M比例伺服阀

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-4X/6EG24K31/A1M比例伺服阀型号

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

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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

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安全阀是启闭件受外力作用下处于常闭状态，当设备或管道内的介质压力升高超过规定值时，通过向系统外排放介质来防止管道或设备内介质压力超过规定数值的特殊阀门。安全阀属于自动阀类，主要用于锅炉、压力容器和管道上，控制压力不超过规定值，对人身安全和设备运行起重要保护作用。注安全阀必须经过压力试验才能使用。