上海韦米机电设备有限公司

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

DBDS6K18/315力士乐直动式溢流阀

产品信息

产品详细

DBDS6K18/315力士乐直动式溢流阀  德国进口博世力士乐REXROTH溢流阀 电磁溢流阀

库存现货力士乐液压元件: 柱塞泵A10VSO、电磁阀4WE、电磁阀3WE、溢流阀DBW、DBDS、DB、3DR、节流阀Z2S、Z2F、叶片泵PV7、PVV、齿轮泵PH2,PH4,PGF、HM20/HM17压力传感器、压力继电器HED、博世放大器、放大板 、阀0811、0820 、齿轮泵0510、减压阀DR、ZDR、4WREE,马达伺服驱动 电机等系列产品

DBDS6K18/315力士乐直动式溢流阀

性能

(1)调压范围:它是指减压阀输出压力P2的可调范围,在此范围内要求达到规定的精度。调压范围主要与调压弹簧的刚度有关。

(2)压力特性:它是指流量g为定值时,因输入压力波动而引起输出压力波动的特性。输出压力波动越小,减压阀的特性越好。输出压力必须低于输入压力—定值才基本上不随输入压力变化而变化。

(3)流量特性:它是指输入压力—定时,输出压力随输出流量g的变化而变化的持性。当流量g发生变化时,输出压力的变化越小越好。一般输出压力越低,它随输出流量的变化波动就越小

调节阀又名控制阀,在工业自动化过程控制领域中,通过接受调节控制单元输出的控制信号,借助动力操作去改变介质流量、压力、温度、液位等工艺参数的*终控制元件。一般由执行机构和阀门组成。如果按行程特点,调节阀可分为直行程和角行程;按其所配执行机构使用的动力,可以分为气动调节阀、电动调节阀、液动调节阀三种;按其功能和特性分为线性特性,等百分比特性及抛物线特性三种。调节阀适用于空气、水、蒸汽、各种腐蚀性介质、泥浆、油品等介质。

溢流阀是一种液压压力控制阀,在液压设备中主要起定压溢流,稳压,系统卸荷和安全保护作用。溢流阀在装配或使用中,由于O形密封圈、组合密封圈的损坏,或者安装螺钉、管接头的松动,都可能造成不应有的外泄漏。如果锥阀或主阀芯磨损过大,或者密封面接触不良,还将造成内泄漏过大,甚至影响正常工作。

定压溢流作用:在定量泵节流调节系统中,定量泵提供的是恒定流量。当系统压力加大时,会使流量需求减小。此时溢流阀开启,使多余流量溢回油箱,保证溢流阀进口压力,即泵出口压力恒定(阀口常随压力波动开启)。

稳压作用:溢流阀串联在回油路上,溢流阀产生背压,运动部件平稳性增加。

系统卸荷作用:在溢流阀的遥控口串接溢小流量的电磁阀,当电磁铁通电时,溢流阀的遥控口通油箱,此时液压泵卸荷。溢流阀此时作为卸荷阀使用。

安全保护作用:系统正常工作时,阀门关闭。只有负载超过规定的极限(系统压力超过调定压力)时开启溢流,进行过载保护,使系统压力不再增加(通常使溢流阀的调定压力比系统*工作压力高10%~20%)。

DBD 型泄压阀是直动式溢流阀。它们用于限制系统压力。

阀门主要由套筒 (1)、弹簧 (2)、带阻尼活塞的提升阀 (3)(压力等级 25 bar … 400 bar)或球阀 (4)(压力等级 630 bar)和调节类型 (5) 组成。系统压力可通过调节类型 (5) 进行无级设置。弹簧 (2) 将提升阀 (3) 或球 (4) 推到阀座上。通道 P 连接到系统。系统中存在的压力作用在提升阀表面(或球体)上。如果通道 P 中的压力超过弹簧 (2) 上设置的值,则提升阀 (3) 或球 (4) 会逆着弹簧 (2) 打开。现在,液压油从通道 P 流入通道 T。提升阀 (3) 的行程受到压花 (6) 的限制。

为了在整个压力范围内实现良好的压力调节,整个压力范围分为7个压力等级。一个压力等级对应于某个弹簧,用于可通过该弹簧设置的较好工作压力。

注意事项:

调整类型 (5) 的构造使其不会丢失。由于万向节安装,在完全卸载的情况下,调整类型 (5) 中的调整元件保持松动(可移动)。

压力等级“25”:如果在完全卸载的调节类型下,最小压力仍未稳定,则由于弹簧和/或恢复力较低,调节元件必须“拉回”到止挡位置。

为了调整/增加压力,然后可以再次拧入调整元件。

类型 DBDS..K1X/…

版本压力等级 25 … 400 bar(提升座阀)

DBDS6K18/315力士乐直动式溢流阀

规格 DBD 

溢流阀,直动式

规格4至30

底板安装("P")

螺纹连接("G")

作为插装阀("K")

按97/23/EC指导已通过设计安全测试的溢流阀

3种可选调节方式

带护罩六角平头螺丝

旋钮/手柄

带锁旋钮

DBDS溢流阀 直动式溢流阀 先导式溢流阀特价现货型号

R900422542 REXROTH溢流阀DBDS20K1X/25

R900422543 REXROTH溢流阀DBDS30K1X/25

R900423714 REXROTH溢流阀DBDS30P1X/200

R900423715 REXROTH溢流阀DBDS30P1X/315

R900423719 REXROTH溢流阀DBDS6G1X/200

R900423722 REXROTH溢流阀DBDS6G1X/50

R900423723 REXROTH溢流阀DBDS6K1X/100

R900423724 REXROTH溢流阀DBDS6K1X/200

R900423725 REXROTH溢流阀DBDS6K1X/315

R900423726 REXROTH溢流阀DBDS6K1X/400

R900423727 REXROTH溢流阀DBDS6K1X/50

R900423728 REXROTH溢流阀DBDS6P1X/100

R900423729 REXROTH溢流阀DBDS6P1X/200

R900423730 REXROTH溢流阀DBDS6P1X/315

R900423732 REXROTH溢流阀DBDS6P1X/50

R900423735 REXROTH溢流阀DBDS8G1X/315

R900423743 REXROTH溢流阀DBDS10G1X/25

R900423766 REXROTH溢流阀DBD.10G1X/...

R900424082 REXROTH溢流阀DBDS20K1X/315V

R900424109 REXROTH溢流阀DBDH20K1X/100

R900424140 REXROTH溢流阀DBDS10G1X/200

R900424147 REXROTH溢流阀DBDS10K1X/100

R900424148 REXROTH溢流阀DBDS10K1X/100V

R900424149 REXROTH溢流阀DBDS10K1X/200

R900424150 REXROTH溢流阀DBDS10K1X/315

R900424151 REXROTH溢流阀DBDS10K1X/315V

R900424152 REXROTH溢流阀DBDS10K1X/400

R900424153 REXROTH溢流阀DBDS10K1X/50

R900424155 REXROTH溢流阀DBDS10P1X/100

R900424157 REXROTH溢流阀DBDS10P1X/200

R900424158 REXROTH溢流阀DBDS10P1X/315

R900424159 REXROTH溢流阀DBDS10P1X/315V

R900424163 REXROTH溢流阀DBDS15G1X/200

R900424165 REXROTH溢流阀DBDS15G1X/315

R900424171 REXROTH溢流阀DBDS20G1X/100V

R900424172 REXROTH溢流阀DBDS20G1X/200

R900424174 REXROTH溢流阀DBDS20G1X/315

R900424179 REXROTH溢流阀DBDH10G1X/400

R900424183 REXROTH溢流阀DBDH10K1X/315

R900424186 REXROTH溢流阀DBDH10P1X/200

R900424187 REXROTH溢流阀DBDH10P1X/315

R900424189 REXROTH溢流阀DBDH10G1X/315

R900424190 REXROTH溢流阀DBDH10K1X/200

R900424196 REXROTH溢流阀DBDH6G1X/200

R900424199 REXROTH溢流阀DBDH6K1X/100

R900424200 REXROTH溢流阀DBDH6K1X/200

R900424201 REXROTH溢流阀DBDH6K1X/315

R900424203 REXROTH溢流阀DBDS20K1X/400

R900424205 REXROTH溢流阀DBDS20K1X/50

R900424260 REXROTH溢流阀DBDS30G1X/200V

R900424261 REXROTH溢流阀DBDS30G1X/315

R900424262 REXROTH溢流阀DBDS30G1X/50

R900424264 REXROTH溢流阀DBDS25G1X/200

R900424266 REXROTH溢流阀DBDH6P1X/315

R900424267 REXROTH溢流阀DBDS20K1X/100

R900424269 REXROTH溢流阀DBDS20K1X/200

R900424270 REXROTH溢流阀DBDS20K1X/200V

R900424271 REXROTH溢流阀DBDS20K1X/315

R900424272 REXROTH溢流阀DBDS20P1X/50

R900424274 REXROTH溢流阀DBDS20P1X/100

R900424277 REXROTH溢流阀DBDS20P1X/200

R900424278 REXROTH溢流阀DBDS20P1X/315

R900424279 REXROTH溢流阀DBDS20P1X/400

R900424281 REXROTH溢流阀DBDS30G1X/200

R900424282 REXROTH溢流阀DBDS30K1X/50

R900424283 REXROTH溢流阀DBDS30K1X/315V

R900424284 REXROTH溢流阀DBDS30K1X/100

R900424286 REXROTH溢流阀DBDS30K1X/200

R900424288 REXROTH溢流阀DBDS30K1X/315

R900424321 REXROTH溢流阀DBDS6K1X/200V

R900424348 REXROTH溢流阀DBDH6G1X/400

R900424734 REXROTH溢流阀DBDH6K1X/50

R900424738 REXROTH溢流阀DBDS10G1X/100

R900424742 REXROTH溢流阀DBDS10G1X/315

R900424744 REXROTH溢流阀DBDS10G1X/400

R900424745 REXROTH溢流阀DBDS10G1X/50

R900425084 REXROTH溢流阀DBDA6P1X/100

R900425646 REXROTH溢流阀DB20K1-1X/50XYU

R900425660 REXROTH溢流阀DBDS10P1X/400

R900425661 REXROTH溢流阀DBDS10P1X/50

R900426477 REXROTH溢流阀DBDA6G1X/200

R900426901 REXROTH溢流阀DBDH10P1X/100

R900426905 REXROTH溢流阀DBDS10P1X/25

R900427242 REXROTH溢流阀DBDH6P1X/200

R900427243 REXROTH溢流阀DBDS30G1X/25

R900427600 REXROTH溢流阀DBDH6K1X/25

R900427940 REXROTH溢流阀DBDS10K1X/200V

R900428385 REXROTH溢流阀DBDH6P1X/50

R900428388 REXROTH溢流阀DBDS6K1X/315V

R900429168 REXROTH溢流阀DBDS30P1X/315V

R900429414 REXROTH溢流阀DBDS6P1X/25

R900429711 REXROTH溢流阀DBDS30P1X/25

R900430311 REXROTH溢流阀DBDS20P1X/25

R900430459 REXROTH溢流阀DBDA6P1X/200

R900434128 REXROTH溢流阀DBDH6P1X/400

R900435108 REXROTH溢流阀DBD.30P1X/...

R900435222 REXROTH溢流阀DBDH10K1X/25

R900435450 REXROTH溢流阀DBDS6P1X/315V

R900437810 REXROTH溢流阀DBDS20P1X/315V

R900438025 REXROTH溢流阀DB6K1-4X/50YV

R900438122 REXROTH溢流阀DB10K1-4X/315YV

R900438123 REXROTH溢流阀DB10K2-4X/200YV

R900438939 REXROTH溢流阀DBDS6K1X/400V

R900439247 REXROTH溢流阀DBDH25G1X/50

R900443139 REXROTH溢流阀DB20-1-4X/100W65

R900452120 REXROTH溢流阀DB10-1-4X/50XUW65

R900458607 REXROTH溢流阀DB10-1-4X/315W65

R900462393 REXROTH溢流阀DBDS10K1X/25V

电磁阀线圈密封线圈,可在恶劣环境下长期使用;可用于交流(a.c.)或直流(d.c.)的多种标准线圈;线圈接线方式有:3芯电缆,接线盒和DIN标准接头;可 提供使用电压从12V到400V,使用频率为50Hz,60Hz或50/60Hz的线圈;标准线圈的的较好开启压差可达21bar;安装、拆卸非常方便。

Z2DB系列力士乐溢流阀专卖

Z2DB系列力士乐溢流阀特价供应

Z2DB6VD3-4X/200

Z2DB6VD3-4X/200SO2

Z2DB6VD3-4X/200V

Z2DB6VD3-4X/315V

Z2DB6VD3-4X/50V

Z2DBK10VC2-1X/100/V

Z2DBK10VC2-1X/210/V

Z2DBK10VC2-1X/50V

Z2DBK10VD2-1X/100V

Z2DBK10VD2-1X/210/V

Z2DBK10VD2-1X/50V

Z2DBK6VC2-1X/100V

Z2DBK6VC2-1X/210/V

Z2DBK6VC2-1X/50V

Z2DBK6VD2-1X/100V

Z2DBK6VD2-1X/210/V

Z2DBK6VD2-1X/50V

Z2FG10A5-3X/V

Z2FG10B5-3X/V

Z2FG6-2-4X/1QV

Z2FG6-2-4X/2QV

Z2FG6A2-4X/1Q

Z2FG6A2-4X/2QV

Z2FG6A7-4X/2QV

Z2FG6B2-4X/1Q

Z2FG6B2-4X/2QV

Z2FG6B3-4X/1QV

Z2FG6B5-4X/2QV

Z2FG6P2-4X/1Q

Z2FG6P2-4X/1QV

Z2FGM6T2-2X/2QV

Z2FRM6AB0-2X/10QMV

Z2FRM6AB0-2X/16QMV

Z2FRM6AB2-2X/32QRV

Z2FRM6AB2-2X/6QRV

Z2FRM6BB2-2X/32QRV

Z2FRM6BB2-2X/6QRV

Z2FRM6CB2-2X/32QRV

Z2FRM6CB2-2X/6QRV

Z2FRM6CB2-2X=32QRV

Z2FRM6TB2-2X/32QRV

Z2FRM6TB2-2X/6QRV

Z2FS10-3-3X/V

Z2FS10-5-3X/

Z2FS10-5-3X/JV

Z2FS10-5-3X/MT

Z2FS10-5-3X/SO30

Z2FS10-5-3X/V

Z2FS10-5-3X/VSO30

Z2FS10-5-3X=V

Z2FS10-5-3X=V=LB

Z2FS10-5-3X=V=PL

Z2FS10-7-3X/V

Z2FS10A3-3X/S2V

Z2FS10A3-3X/SV

Z2FS10A5-3X/S/V

Z2FS10A5-3X/S2

Z2FS10A5-3X/S2/V

Z2FS10A7-3X/S2V

Z2FS10A7-3X/SV

Z2FS10B3-3X/S2V

Z2FS10B3-3X/SV

Z2FS10B5-3X/S/V

Z2FS10B5-3X/S2/V

Z2FS10B5-3X/S2VSO30

Z2FS10B5-3X/SVSO30

Z2FS10B7-3X/S2V

Z2FS10B7-3X/SV

Z2FS16-3X/S

Z2FS16-3X/S/V

Z2FS16-3X/S2

Z2FS16-3X/S2/J

Z2FS16-3X/S2/V

Z2FS16-3X/S2=LB

Z2FS16-3X/S2JV

Z2FS16-3X/S2SO2

Z2FS16-3X/S2SO3

Z2FS16-3X/S2SO450

Z2FS16-3X/S2SO71

Z2FS16-3X/S2SO72

Z2FS16-3X/SJ

Z2FS16-3X/SO9

Z2FS16-3X/SSO3

Z2FS16-3X/SSO450

Z2FS16-3X/SSO62

Z2FS16-3X/SSO71

Z2FS16-3X/SSO72

Z2FS16-3X/SSO73

Z2FS16-3X/SV=LB

Z2FS16-3X/SVSO3

Z2FS22-3X/S

Z2FS22-3X/S/V

Z2FS22-3X/S2

Z2FS22-3X/S2/V

Z2FS22-3X/S2J

Z2FS22-3X/S2JV

Z2FS22-3X/S2SO2

Z2FS22-3X/S2SO3

Z2FS22-3X/S2SO450

Z2FS22-3X/S2SO72

Z2FS22-3X/SJ

Z2FS22-3X/SSO3

Z2FS22-3X/SSO63

Z2FS22-3X/SSO71

Z2FS22-3X/SSO72

Z2FS22-3X=S2

Z2FS4-2-1X/1QV

Z2FS4-2-1X/2Q

Z2FS4-2-1X/2QV

Z2FS4A2-1X/2QV

Z2FS4B2-1X/2QV

Z2FS6-2-4X/1Q

Z2FS6-2-4X/1Q/V

Z2FS6-2-4X/1Q=MG

Z2FS6-2-4X/1QJ

Z2FS6-2-4X/1QJV

Z2FS6-2-4X/1QMK

Z2FS6-2-4X/1QVSO450

Z2FS6-2-4X/2Q

Z2FS6-2-4X/2Q/J/V

Z2FS6-2-4X/2Q/V

Z2FS6-2-4X/2QJ

Z2FS6-2-4X/2QV/60

Z2FS6-2-4X/2QVL

Z2FS6-2-4X/2QVSO450

Z2FS6-2-4X=1Q=LB

Z2FS6-2-4X=1Q=PL

Z2FS6-2-4X=1QV=PL

Z2FS6-2-4X=2Q

Z2FS6-2-4X=2QV=LB

Z2FS6-2-4X=2QV=PL

Z2FS6-3-4X/1Q

Z2FS6-3-4X/1QV

Z2FS6-3-4X/2Q

Z2FS6-3-4X/2Q/V

Z2FS6-5-4X/1Q

Z2FS6-5-4X/1Q/V

Z2FS6-5-4X/2Q

Z2FS6-5-4X/2Q/V

Z2FS6-7-4X/1Q

Z2FS6-7-4X/1QV

Z2FS6-7-4X/2Q

Z2FS6-7-4X/2QV

Z2FS6A2-4X/1Q

Z2FS6-A2-4X/1Q/V

Z2FS6A2-4X/1QJ

Z2FS6A2-4X/1QVSO450

Z2FS6A2-4X/2Q

Z2FS6A2-4X/2Q/V

Z2FS6A2-4X=2QV=LB

Z2FS6A3-4X/1Q

Z2FS6A3-4X/1QV

Z2FS6A3-4X/2QV

Z2FS6A5-4X/1QV

Z2FS6A5-4X/2Q/V

Z2FS6-A7-4X/1QV

Z2FS6A7-4X/2Q

Z2FS6B2-4X/1Q

Z2FS6B2-4X/1Q/V

Z2FS6B2-4X/2Q

Z2FS6B2-4X/2Q/V

Z2FS6B2-4X/2QJV

Z2FS6B2-4X=2QV=PL

Z2FS6B3-4X/1Q

Z2FS6B3-4X/1QV

Z2FS6-B3-4X/2QV

Z2FS6B5-4X/1QV

Z2FS6B5-4X/2QV

Z2FS6B7-4X/1Q

Z2FS6B7-4X/1QV

Z2FS6B7-4X/2Q

Z2FS6B7-4X/2QV

Z2FSK10-2-1X/2Q/V

Z2FSK6-2-1X/2QV

Z2FSK6-5-1X/2QV

Z2HSR06-003-2X/M00

Z2S10-1-3X

Z2S10-1-3X/J

Z2S10-1-3X/ML

Z2S10-1-3X/SO14

Z2S10-1-3X/SO30

Z2S10-1-3X/SO41

Z2S10-1-3X/SO49

Z2S10-1-3X/SO52

Z2S10-1-3X/V

Z2S10-1-3X/VSO30

Z2S10-1-3X/VSO450

Z2S10-1-3X=

Z2S10-1-3X==LB

Z2S10-2-3X

Z2S10-2-3X/SO30

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电磁阀里有密闭的腔,在不同位置开有通孔,每个孔连接不同的油管,腔中间是活塞,两面是两块电磁铁,哪面的磁铁线圈通电阀体就会被吸引到哪边,通过控制阀体的移动来开启或关闭不同的排油孔,而进油孔是常开的,液压油就会进入不同的排油管,然后通过油的压力来推动油缸的活塞,活塞又带动活塞杆,活塞杆带动机械装置。这样通过控制电磁铁的电流通断就控制了机械运动。

柱塞泵是液压系统的一个重要装置。它依靠柱塞在缸体中往复运动,使密封工作容腔的容积发生变化来实现吸油、压油。柱塞泵具有额定压力高、结构紧凑、效率高和流量调节方便等优点,被广泛应用于高压、大流量和流量需要调节的场合,诸如液压机、工程机械和船舶中。机械分类 ? 轴向式 ? 直轴斜盘式  ? 径向式 ? 液压式 柱塞泵一般分为单柱塞泵、卧式柱塞泵、轴向柱塞泵和径向柱塞泵。

比例阀 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,流量要么较好、要么最小,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。

换向阀是具有两种以上流动形式和两个以上油口的方向控制阀。是实现液压油流的沟通、切断和换向,以及压力卸载和顺序动作控制的阀门。

可分为手动换向阀、电磁换向阀、电液换向阀等。

又称克里斯阀,阀门的一种,具有多向可调的通道,可适时改变流体流向。

工作时借着阀外的驱动传动机构转动驱动轴,带动摇拐臂,启动阀板,使工作流体时而从左入口通向阀的下部出口,时而从右入口变换通向下部出口,实现了周期变换流向的目的。

这种变换阀在石油、化工生产中有着广泛的应用,在合成氨造气系统中最为常用。此外,换向阀还可作成阀瓣式的结构,多用于较小流量的场合。工作时只需转动手轮通过阀瓣来变换工作流体的流向。

溢流阀是一种液压压力控制阀,在液压设备中主要起定压溢流作用,稳压,系统卸荷和安全保护作用。

主要作用编辑定压溢流作用:在定量泵节流调节系统中,定量泵提供的是恒定流量。当系统压力加大时,会使流量需求减小。此时溢流阀开启,使多余流量溢回油箱,保证溢流阀进口压力,即泵出口压力恒定(阀口常随压力波动开启)。

节流阀是通过改变节流截面或节流长度以控制流体流量的阀门。将节流阀和单向阀并联则可组合成单向节流阀。节流阀和单向节流阀是简易的流量控制阀,在定量泵液压系统中,节流阀和溢流阀配合,可组成三种节流调速系统,即进油路节流调速系统、回油路节流调速系统和旁路节流调速系统。节流阀没有流量负反馈功能,不能补偿由负载变化所造成的速度不稳定,一般仅用于负载变化不大或对速度稳定性要求不高的场合。

齿轮泵是依靠泵缸与啮合齿轮间所形成的工作容积变化和移动来输送液体或使之增压的回转泵。由两个齿轮、泵体与前后盖组成两个封闭空间,当齿轮转动时,齿轮脱开侧的空间的体积从小变大,形成真空,将液体吸入,齿轮啮合侧的空间的体积从大变小,而将液体挤入管路中去。吸入腔与排出腔是靠两个齿轮的啮合线来隔开的。齿轮泵的排出口的压力完全取决于泵出处阻力的大小。

叶片泵因为历史的叶片泵根据中类型的不同有两种

一)专门指容积泵中的滑片泵。

二)指动力式泵的三泵(离心泵、混流泵、轴流泵)或其他特殊的泵。

这类泵产品一般不会叫叶片泵。但作为专著,叶片泵几乎全部是指离心泵、混流泵、轴流泵等。

根据其每转的理论排量是固定值还是可变值,可以分为叶片式变量泵和叶片式定量泵。

工作原理编辑叶片泵转子旋转时,叶片在离心力和压力油的作用下,尖部紧贴在定子内表面上。这样两个叶片与转子和定子内表面所构成的工作容积,先由小到大吸油后再由大到小排油,叶片旋转一周时,完成两次吸油与排油。

单向阀是流体只能沿进口流动,出口介质却无法回流的装置

单向阀 Check Valve 

单向阀又称止回阀或逆止阀。用于液压系统中防止油流反向流动,或者用于气动系统中防止压缩空气逆向流动。

单向阀有直通式和直角式两种。直通式单向阀用螺纹连接安装在管路上。直角式单向阀有螺纹连接、板式连接和法兰连接三种形式。液控单向阀也称闭锁阀或保压阀,它与单向阀相同,用以防止油液反向流动。但在液压回路中需要油流反向流动时又可利用控制油压,打开单向阀,使油流在两个方向都可流动。液控单向阀采用锥形阀芯,因此密封性能好。在要求封闭油路时,可用此阀作为油路的单向锁紧而起保压作用。液控单向阀控制油的泄漏方式有内泄式和外泄式二种。在油流反向出口无背压的油路中可用内泄式;否则需用外泄式,以降低控制油压力。

压力继电器,液压术语,是液压系统中当流体压力达到预定值时,使电接点动作的元件。

2.是将压力转换成电信号的液压元器件,客户根据自身的压力设计需要,通过调节压力继电器,实现在某一设定的压力时,输出一个电信号的功能。

液压阀是一种用压力油操作的自动化元件,它受配压阀压力油的控制,通常与电磁配压阀组合使用,可用于远距离控制水电站油、气、水管路系统的通断。常用于夹紧、控制、润滑等油路。有直动型与先导型之分,多用先导型。

 

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