追求合作共赢
Win win for you and me售前售中售后完整的服务体系
诚信经营质量保障价格实惠服务完善详细介绍
品牌 | REXROTH/德国力士乐 |
---|
阀门在初始位置打开。液压油可以不受限制地从通道 流向通道 。通道中的压力同时通过孔 施加在压缩弹簧对面的活塞区域。同时,通过喷嘴向控制阀芯的弹簧加载侧施加压力,并通过通道向先导控制阀中的球 施加压力。
根据压缩弹簧的设置,压力在球的上游和通道中积聚,将控制阀芯保持在打开位置。液压油通过控制阀芯从通道流向通道 ,直到通道中的压力超过在压缩弹簧处设置的压力值并打开球。控制阀芯移动到关闭位置。如果通道中的压力与压缩弹簧处设置的压力值之间存在平衡,则达到所需的减压。
如果通道A中的压力由于执行器的外力作用而进一步增加,则控制阀芯将进一步推到压缩弹簧上。这样,通道A通过控制阀芯上的控制边连接到通道T。如此多的液压油被排放到油箱中,以至于压力不会进一步增加。
弹簧室的先导油返回始终通过端口 Y 的控制管路从外部实现。必须始终确保与油箱的减压连接。压力表连接可以控制通道中的减压。
01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | |||
3DR | 16 | P | – | 5 倍 | / | Y | / | 00 | * |
01 | 三通减压阀 | 3DR |
02 | 尺寸 16 | 16 |
03 | 底板安装 | P |
调整类型 | ||
04 | 旋钮 | 4 |
带六角形和保护盖的套筒 | 5 | |
带刻度的可锁定旋钮 | 6 1) | |
带刻度的旋钮 | 7 | |
05 | 组件系列 50 ...59 (50 ...59:安装和连接尺寸不变) | 5 倍 |
06 | 设置压力高达 50 bar | 50 |
设置压力高达 100 bar | 100 | |
设置压力高达 200 bar | 200 | |
设置压力高达 250 bar | 250 | |
先导油流 | ||
07 | 内部先导油供应,外部先导油回油 | Y |
08 | 有行程限制 | 00 |
密封材料 | ||
09 | 丁腈橡胶密封件 | M |
氟橡胶密封件(可根据要求提供其他密封件) | V | |
观察密封件与所用液压油的兼容性。 | ||
10 | 纯文本中的更多详细信息 | * |
大小 | 16 | |
重量 | 公斤 | 8 |
安装位置 | 任何 | |
环境温度范围 | °C | -30 ... +50 |
大小 | 16 | ||
公称压力 | 酒吧 | 315 | |
最大工作压力 | 端口 P | 酒吧 | 315 |
安斯卢斯· | 酒吧 | 250 | |
端口 Y | 分离并减压到油箱 | ||
设定压力 | 与流量相关,请参见特性曲线 | ||
最大 | 酒吧 | 50 100 200 315 | |
最大流量 | 升/分钟 | 220 | |
液压油 | 见表 | ||
液压油温度范围 | 丁腈橡胶密封件 | °C | -30 ... +80 |
氟橡胶密封件 | °C | -20 ... +80 | |
粘度范围 | 毫米²/秒 | 10 ...800 | |
液压油的最大允许污染程度 | 根据 NAS 9 的 1638 类。为此,我们建议使用最小保留率为β10≥75的过滤器。 |
液压油 | 分类 | 合适的密封材料 | 标准 | |
矿物油 | HL, HLP | 氟橡胶,丁腈橡胶 | DIN 51524 | |
可生物降解 | 不溶于水 | HEES(合成酯) | 氟橡胶 | VDMA 24568 |
HETG(菜籽油) | 氟橡胶,丁腈橡胶 | |||
易溶于水 | HEPG(聚乙二醇) | 氟橡胶 | VDMA 24568 | |
可根据要求提供其他液压油 |
型号提供:
力士乐电磁阀R900917782 3DR16P4-5X/100Y/00M
力士乐电磁阀R900917780 3DR16P4-5X/100Y/00V
力士乐电磁阀R900916667 3DR16P4-5X/200Y/00M
力士乐电磁阀R900917772 3DR16P4-5X/200Y/00V
力士乐电磁阀R900917781 3DR16P4-5X/250Y/00M
力士乐电磁阀3DR16P4-5X/100Y/00M R900917782
力士乐电磁阀R900976027 3DR16P4-5X/50Y/00M
力士乐电磁阀R900916666 3DR16P5-5X/100Y/00M
力士乐电磁阀R900917774 3DR16P5-5X/100Y/00V
力士乐电磁阀R900916668 3DR16P5-5X/200Y/00M
力士乐电磁阀R900917773 3DR16P5-5X/200Y/00V
力士乐电磁阀3DR16P4-5X/100Y/00M R900917782
力士乐电磁阀R900917775 3DR16P5-5X/250Y/00M
力士乐电磁阀R900916670 3DR16P5-5X/250Y/00V
力士乐电磁阀R901357541 3DR16P5-5X/50-15Y/00M
力士乐电磁阀R900919502 3DR16P5-5X/50Y/00M
力士乐电磁阀R900942090 3DR16P5-5X/50Y/00V
力士乐换向阀R901419056 Z4WE10X250-1X/CG205N9K4
力士乐换向阀R901291612 Z4WE10X250-1X/CG24N9K4
力士乐换向阀R901087078 Z4WE10X250-1X/CG24N9K4/V
力士乐换向阀R900942034 Z4WE6E135-3X/EG24K4SO742
力士乐换向阀R900941536 Z4WE6E137-3X/EG24K4
力士乐换向阀R900975026 Z4WE6E137-3X/EG24N9K4
力士乐换向阀R900702873 Z4WE6E145-3X/EG24N9K4
力士乐换向阀R901140259 Z4WE6E166-3X/EG24N9K4/V/60SO86
力士乐换向阀R900958420 Z4WE6E51-3X/EG24N9K4
力士乐换向阀R901293719 Z4WE6E51-3X/EG24N9K4QMBG24
力士乐换向阀R901435649 Z4WE6E54-3X/EG24N9K4QMBG24
力士乐换向阀R900962340 Z4WE6E63-3X/EG24K4
力士乐换向阀R900940791 Z4WE6E63-3X/EG24K4QMAG24
力士乐换向阀R900937595 Z4WE6E63-3X/EG24N9K4
力士乐换向阀R900952872 Z4WE6E63-3X/EG24N9K4/V
力士乐换向阀R900706112 Z4WE6E63-3X/EG24N9K4K
力士乐换向阀R900933643 Z4WE6E63-3X/EG24N9K4QMAG24
力士乐换向阀R900748003 Z4WE6E63-3X/EG24N9K4QMAG24/V
力士乐换向阀R900934757 Z4WE6E63-3X/EG24N9K4QMBG24
力士乐换向阀R900749845 Z4WE6E63-3X/EG24NK4QMAG24
力士乐换向阀R900939990 Z4WE6E68-3X/EG24K4
力士乐换向阀R900941535 Z4WE6E68-3X/EG24K4/V
力士乐换向阀R900953228 Z4WE6E68-3X/EG24K4QMAG24
力士乐换向阀R900936096 Z4WE6E68-3X/EG24N9K4/V
力士乐换向阀R900962341 Z4WE6E68-3X/EW230N9K4
力士乐换向阀R900979465 Z4WE6X163-3X/EG24K4SO60
力士乐换向阀R900718292 Z4WE6X181-3X/EG24K4SO60
力士乐换向阀R901018538 Z4WE6X188-3X/EG24K4QMBG24SO863
力士乐换向阀R901237545 Z4WE6X250-3X/EG24K4QMBG24
力士乐换向阀R901291614 Z4WE6X250-3X/EG24N9K4/60
力士乐换向阀R901087021 Z4WE6X250-3X/EG24N9K4/V/60
力士乐换向阀R901134642 Z4WE6X250-3X/EG24N9K4QMBG24
力士乐换向阀R901321748 Z4WE6X250-3X/EG24N9K4QMBG24/V
力士乐换向阀R901046900 Z4WEH10E51-5X/4KEG24N9ETK4/V
力士乐换向阀R900742277 Z4WEH10E63-4X/6EG24ETK4QMAG24/B10D3
力士乐换向阀R900962784 Z4WEH10E63-4X/6EG24N9ETK4/B10
力士乐换向阀R900963397 Z4WEH10E63-4X/6EG24N9ETK4/B10V
力士乐换向阀R900702020 Z4WEH10E63-4X/6EG24N9ETK4QMAG24/B10
力士乐换向阀R901295927 Z4WEH10E63-4X/6EG24N9ETK4QMBG24/B10
力士乐换向阀R900936779 Z4WEH10E63-4X/6EG24N9K4/B08SO17
力士乐换向阀R901287310 Z4WEH10E63-4X/6EG24NETK4QMAG24/B10
力士乐换向阀R901113573 Z4WEH10E63-4X/6EW110N9ETK4/B10
力士乐换向阀R901081099 Z4WEH10E63-4X/6EW110N9ETK4/B10V
力士乐换向阀R901040424 Z4WEH10E63-5X/4KEG24ETK4QMBG24
力士乐换向阀R900752824 Z4WEH10E63-5X/4KEG24N9ETK4
力士乐换向阀R900744409 Z4WEH10E63-5X/4KEG24N9ETK4QMAG24
力士乐换向阀R901048173 Z4WEH10E63-5X/4KEG24N9ETK4QMBG24
力士乐换向阀R901108364 Z4WEH10E63-5X/4KEG24N9ETK4QMBG24/V
力士乐换向阀R900954040 Z4WEH10E68-4X/6EG24N9ETK4/B10D3V
力士乐换向阀R901264162 Z4WEH10X161-4X/6EG24ETK4/B10
力士乐换向阀R901524664 Z4WEH10X161-4X/6EG24ETK4QMAG24/B10SO4
力士乐换向阀R901446481 Z4WEH10X161-4X/6EG24ETK4QMAG24/B10SO603
力士乐换向阀R901375756 Z4WEH10X163-4X/6EG24ETK4QMAG24/B10SO603
力士乐换向阀R900763297 Z4WEH10X181-5X/4KEG24ETK4
力士乐换向阀R900763298 Z4WEH10X183-5X/4KEG24ETK4
力士乐换向阀R900942666 Z4WEH16E63-5X/6EG24N9ETK4QMAG24/B10
力士乐换向阀R901285584 Z4WEH16E63-5X/6EG24N9ETK4QMAG24/B10V
力士乐换向阀R900701211 Z4WEH16E63-5X/6EG24N9ETK4QMBG24/B10
力士乐换向阀R901162368 Z4WEH16E63-5X/6EG24N9K4QMAG24SO32
力士乐换向阀R901256925 Z4WEH16E63-5X/6EW110N9ETK4/B10
力士乐换向阀R901358044 Z4WEH16X161-5X/6EG24ETK4/B10
力士乐换向阀R901253854 Z4WEH16X161-5X/6EG24ETK4/B10D3
力士乐换向阀R901243541 Z4WEH16X161-5X/6EG24ETK4QMAG24/B10D3
力士乐换向阀R901311775 Z4WEH16X163-5X/6EG24ETK4QMAG24/B10D3
力士乐换向阀R900958158 Z4WEH22E63-5X/6EG24N9ETK4/B10D3
力士乐换向阀R901252975 Z4WEH22E63-5X/6EG24N9ETK4QMAG24/B10
力士乐换向阀R901324723 Z4WEH22E63-5X/6EG24N9ETK4QMAG24/B10V
力士乐换向阀R900939324 Z4WEH22E63-5X/6EG24N9TK4
力士乐换向阀R900964603 Z4WEH22E63-5X/6EG24TK4QMAG24
力士乐换向阀R900502420 Z4WH16E63-5X/
力士乐换向阀R90578532 4WE6C62/EG24K4QMBG24
力士乐换向阀R90558089 4WE6C62/EG24N9DL
力士乐换向阀R90561272 4WE6C62/EG24N9K4
力士乐换向阀R978017744 4WE6C62/EG24N9K4/62
力士乐换向阀R90905548 4WE6C62/EG24N9K4/V
力士乐换向阀R90910470 4WE6C62/EG24N9K4QMAG24
力士乐换向阀R90909149 4WE6C62/EG24N9K4QMBG24
力士乐换向阀R90960947 4WE6C62/EG24NDL
力士乐换向阀R91470675 4WE6C62/EG24NJ3DLSO929
力士乐换向阀R91035957 4WE6C62/EG24NXEZ2
力士乐换向阀R91091387 4WE6C62/EG24NXEZ2/B08
力士乐换向阀R90901748 4WE6C62/EW110N9K4
力士乐换向阀R90913132 4WE6C62/EW230N9K4
力士乐换向阀R91094250 4WE6C62/OEG24N9K4/B12
力士乐换向阀R91080912 4WE6C62/OEG24NXEZ2
力士乐换向阀R90923845 4WE6C62/OFEG110N9K4
力士乐换向阀R90922208 4WE6C62/OFEG220N9K4
力士乐换向阀R90564107 4WE6C62/OFEG24N9K4
力士乐换向阀R90927854 4WE6C62/OFEW230N9K4
力士乐换向阀R90707158 4WE6C62/OFEW230N9K4/V
力士乐换向阀R91089245 4WE6C70/HG24N9K4
力士乐换向阀R91095144 4WE6D46-62/OFEG24DK35LSO908=AN
力士乐换向阀R91179855 4WE6D46-62/OFEG24DK72LSO908=AN
力士乐换向阀R91260291 4WE6D46-62/OFEG24N4K4/ZSO407
力士乐换向阀R91058011 4WE6D46-62/OFEG24N9DK24L1SO407
力士乐换向阀R90978302 4WE6D46-62/OFEG24N9DK35LSO407
力士乐换向阀R90565478 4WE6D46-62/OFEG24N9K4SO407
力士乐换向阀R91235381 4WE6D46-62/OFEG24N9K72LSO407
力士乐换向阀R91254594 4WE6D46-62/OFEG24N9K73LSO407
力士乐换向阀R91343067 4WE6D5X/BG12-12NXMZ2/V
力士乐换向阀R91239889 4WE6D62/BG24NXDZ2
力士乐换向阀R90908879 4WE6D62/EG110N9K4
力士乐换向阀R90944594 4WE6D62/EG110N9K4/V
力士乐换向阀R91379416 4WE6D62/EG110NXEZ2/V
力士乐换向阀R90923381 4WE6D62/EG125N9K4/V
力士乐换向阀R90913281 4WE6D62/EG12N9K4
力士乐换向阀R90903081 4WE6D62/EG205N9K4
力士乐换向阀R91020873 4WE6D62/EG205N9K4/V
力士乐换向阀R90916984 4WE6D62/EG220N9K4
力士乐换向阀R91008688 4WE6D62/EG220N9K4/V
力士乐换向阀R91076530 4WE6D62/EG220N9K4/V/60
力士乐换向阀R90554753 4WE6D62/EG24K4
力士乐换向阀R91235381 4WE6D46-62/OFEG24N9K72LSO407
力士乐换向阀R90574632 4WE6D62/EG24K4QMBG24
力士乐换向阀R91489388 4WE6D62/EG24K4QMBG24/62
力士乐换向阀R91401986 4WE6D62/EG24K4QMBG24/MH
力士乐换向阀R91127681 4WE6D62/EG24K4QMBG24/Z
力士乐换向阀R90618760 4WE6D62/EG24N2K4/V
力士乐换向阀R90550589 4WE6D62/EG24N9DAL
力士乐换向阀R900578532 4WE6C62/EG24K4QMBG24
力士乐换向阀R90978303 4WE6D62/EG24N9DK35LSO407
力士乐换向阀R90552901 4WE6D62/EG24N9DL
力士乐换向阀R90561274 4WE6D62/EG24N9K4
力士乐换向阀R978017922 4WE6D62/EG24N9K4/62
力士乐换向阀R90929558 4WE6D62/EG24N9K4/A12
力士乐换向阀R90915069 4WE6D62/EG24N9K4/B10
力士乐换向阀R90934673 4WE6D62/EG24N9K4/B10V
力士乐换向阀R91153505 4WE6D62/EG24N9K4/B10VSO9
力士乐换向阀R90908590 4WE6D62/EG24N9K4/B12
力士乐换向阀R90956520 4WE6D62/EG24N9K4/B12V
力士乐换向阀R90911521 4WE6D62/EG24N9K4/B20
力士乐换向阀R91401985 4WE6D62/EG24N9K4/MH
力士乐换向阀R91401981 4WE6D62/EG24N9K4/MHSO9
力士乐换向阀R90960021 4WE6D62/EG24N9K4/R10
力士乐换向阀R91191878 4WE6D62/EG24N9K4/R12
力士乐换向阀R90564105 4WE6D62/EG24N9K4/V
力士乐换向阀R91258008 4WE6D62/EG24N9K4/X15
力士乐换向阀R91068596 4WE6D62/EG24N9K4/Z
力士乐换向阀R91068595 4WE6D62/EG24N9K4/ZV
力士乐换向阀R90705992 4WE6D62/EG24N9K4K
力士乐换向阀R90913477 4WE6D62/EG24N9K4QMAG24
力士乐换向阀R91318654 4WE6D62/EG24N9K4QMAG24/V
力士乐换向阀R90910413 4WE6D62/EG24N9K4QMBG24
力士乐换向阀R90963693 4WE6D62/EG24N9K4QMBG24/B10V
力士乐换向阀R90905685 4WE6D62/EG24N9K4QMBG24/B12
力士乐换向阀R90946078 4WE6D62/EG24N9K4QMBG24/V
力士乐换向阀R91288165 4WE6D62/EG24N9K4QSABG24W
力士乐换向阀R90938379 4WE6D62/EG24N9K4SO407
力士乐换向阀R91235368 4WE6D62/EG24N9K72L
力士乐换向阀R91235361 4WE6D62/EG24N9K72L=AN
力士乐换向阀R91322576 4WE6D62/EG24N9K72LQMAG24=AN
力士乐换向阀R91235380 4WE6D62/EG24N9K72LSO407
力士乐换向阀R91235406 4WE6D62/EG24N9K73LSO407
力士乐换向阀R91288537 4WE6D62/EG24N9XNK4
力士乐换向阀R91470672 4WE6D62/EG24NJ3DLSO929
力士乐换向阀R90550062 4WE6D62/EG24NK4
力士乐换向阀R90958183 4WE6D62/EG24NK4/B08V
力士乐换向阀R91021443 4WE6D62/EG24NXEZ2
力士乐换向阀R91109638 4WE6D62/EG24NXEZ2/B08
力士乐换向阀R90928676 4WE6D62/EG26N4K4K
力士乐换向阀R90938760 4WE6D62/EG28N9K4
力士乐换向阀R90957354 4WE6D62/EG48N9DL/V
力士乐换向阀R90911895 4WE6D62/EG48N9K4
力士乐换向阀R91303124 4WE6D62/EG96N9K4/B12V
力士乐换向阀R90917737 4WE6D62/EW110K4QMBG24
力士乐换向阀R90743332 4WE6D62/EW110N9DL1/V
力士乐换向阀R90551704 4WE6D62/EW110N9K4
力士乐换向阀R978017734 4WE6D62/EW110N9K4/62
力士乐换向阀R90743334 4WE6D62/EW230N9DL1/V
力士乐换向阀R90909559 4WE6D62/EW230N9K4
力士乐换向阀R90917825 4WE6D62/EW230N9K4/V
力士乐换向阀R90968537 4WE6D62/EW230NK4/B10
力士乐换向阀R91429838 4WE6D62/EW230RNXEZ2/B10
力士乐换向阀R90975025 4WE6D62/OEG24N9K4SO407
力士乐换向阀R91108054 4WE6D62/OEG24NXEZ2/B10
力士乐换向阀R90964355 4WE6D62/OFEG110N4K4
力士乐换向阀R90918801 4WE6D62/OFEG110N9K4
力士乐换向阀R90965028 4WE6D62/OFEG110N9K4/V
力士乐换向阀R91125998 4WE6D62/OFEG110NK4
力士乐换向阀R90921990 4WE6D62/OFEG125N9K4
力士乐换向阀R90718345 4WE6D62/OFEG125NK4/V
力士乐换向阀R90926479 4WE6D62/OFEG205N9K4/B10
力士乐换向阀R90920691 4WE6D62/OFEG220N9K4
力士乐换向阀R90957150 4WE6D62/OFEG220N9K4/B10
力士乐换向阀R90920689 4WE6D62/OFEG220N9K4/V
力士乐换向阀R91164568 4WE6D62/OFEG220N9K4QSABG24W
力士乐换向阀R91164592 4WE6D62/OFEG220N9K4QSAG24W
力士乐换向阀R91164544 4WE6D62/OFEG220N9K4QSBG24W
力士乐换向阀R90718346 4WE6D62/OFEG220NK4/V
力士乐换向阀R91206461 4WE6D62/OFEG24K4QSABG24W
力士乐换向阀R91489389 4WE6D62/OFEG24K4QSABG24W/62
力士乐换向阀R90949264 4WE6D62/OFEG24N4K4
力士乐换向阀R90979841 4WE6D62/OFEG24N9DAL
力士乐换向阀R90962312 4WE6D62/OFEG24N9DAL=CSA
0811J02182 力士乐比例减压阀ZDRE6VP1X-1X/180G24-25Z4M
0811J02166 力士乐比例减压阀ZDREB10VP4X-1X/250YMG24-8Z4M
0811J02165 力士乐比例减压阀ZDRE10VP2X-1X/180LG24-25Z4M-8
0811J02163 力士乐比例减压阀ZDREE10VP3X-1X/250YG24K0B5M
0811A02182 力士乐比例减压阀ZDRE6VP1X-1X/180G24-25Z4M
0811402270 力士乐比例减压阀DREBE25Z-1X/315XYMG24K31A1M
0811402252 力士乐比例减压阀DRE25Z-1X/180XYMG24-8NZ4M
0811402185 力士乐比例减压阀ZDREE6VP1X-1X/250G24K31A1M
0811402184 力士乐比例减压阀ZDRE6VP1X-1X/80G24-25Z4M
0811402181 力士乐比例减压阀ZDREE6VP4X-1X/250YG24K0B5M
0811402180 力士乐比例减压阀ZDREE6VP1X-1X/250YG24K0B5M
0811402174 力士乐比例减压阀ZDREB10VP3X-1X/250YMG24-8Z4M-6
0811402173 力士乐比例减压阀ZDREB10VP2X-1X/250YMG24-8Z4M-6
0811402172 力士乐比例减压阀ZDREB10VP4X-1X/250YMG24-8Z4M-6
0811402171 力士乐比例减压阀ZDREB10VP3X-1X/250YMG24-8Z4M
0811402170 力士乐比例减压阀ZDREB10VP4X-1X/250YMG24-8Z4M-7
0811402168 力士乐比例减压阀ZDREE10VP4X-1X/250YMG24K0B5M
0811402162 力士乐比例减压阀ZDREB10VP1X-1X/250YMG24-25Z4M
0811402160 力士乐比例减压阀ZDREB10VP2X-1X/180LG24-25Z4M
0811402155 力士乐比例减压阀DREBE10Z-1X/180XYMG24K31A1M
0811402154 力士乐比例减压阀DRE10Z-1X/315XYMG24-8NZ4M
0811402153 力士乐比例减压阀DRE10Z-1X/180XYMG24-8NZ4M
0811402152 力士乐比例减压阀DREBE10Z-1X/315XYMG24K31A1M
0811402151 力士乐比例减压阀DREB10Z-1X/315XYMG24-37Z4M
0811402150 力士乐比例减压阀DREB10Z-1X/180XYMG24-37Z4M
0811402085 力士乐比例减压阀DREBE6X-1X/310MG24K31F1M
0811402083 力士乐比例减压阀DREBE6X-1X/175MG24K31F1M
0811402082 力士乐比例减压阀DREBE6X-1X/75MG24K31A1M
0811402081 力士乐比例减压阀DREBE6X-1X/310MG24K31A1M
0811402080 力士乐比例减压阀DREBE6X-1X/175MG24K31A1M
0811402063 力士乐比例减压阀DREB6X-1X/175MG24-25Z4V
0811402060 力士乐比例减压阀DRE6X-1X/175MG24-8NZ4M
0811402059 力士乐比例减压阀DRE6X-1X/75MG24-8NZ4M
0811402058 力士乐比例减压阀DRE6X-1X/310MG24-8NZ4M
0811402057 力士乐比例减压阀DRE6X-1X/245MG24-8NZ4M-6
0811402055 力士乐比例减压阀DRE6X-1X/175MG24-8NZ4M
0811402054 力士乐比例减压阀DRE6X-1X/75MG24-8NZ4M-7
0811402052 力士乐比例减压阀DREB6X-1X/310MG24-25Z4M
0811402051 力士乐比例减压阀DREB6X-1X/175MG24-25Z4M
0811402050 力士乐比例减压阀DREB6X-1X/75MG24-25Z4M
产品咨询