直动式溢流阀主要由阀体、阀芯、调压弹簧和调压螺钉(或称手柄)组成。在常态下,阀芯在调压弹簧的作用下紧贴在阀座上,进油口P和出油口T 是不通的(即溢流阀为常闭型)直动型溢流阀按阀芯结构,可分为座阀和滑阀两种形式。座阀结构又分为球阀和锥阀两种;滑阀结构又有滑阀、带阻尼孔的滑阀和差动滑阀三种。直动型溢流阀结构简单, 灵敏度高, 压力受溢流流量变化影响较大,调压偏差大,不适于在高压、大流量下工作,常作安全阀或调压精度要求不高的场合 [2] 。
当将溢流阀接入系统时,液压油就在阀芯上产生一个作用力,力的方向与弹簧力的方向相反,当进油口压力低于溢流阀的调定压力时,则阀芯不开启,此时进油口压力主要取决于外负载。当油液作用力大于弹簧力时,阀芯开启,油液从溢流口流回油箱。弹簧力随着溢流阀的开口量的增大而增大,直至与液压作用力相平衡。当溢流阀开始溢流时,其进油口处的压力基本稳定在调定值上,从而起到溢流稳压的作用。通过调压螺钉调节弹簧的预压缩量,可以调定溢流阀溢流压力值的大小。
除滑阀式结构外,常用的还有锥阀型结构。锥阀型结构密封性好,但阀芯与阀座间的接触引力大,常作先导式溢流阀中调压阀、远程调压阀和高压阀使用。滑阀式阀芯用得较多,但其泄漏量较大。直动式溢流阀结构简单、灵敏度高,但压力受溢流量的影响较大,不适于在高压、大流量下工作
派克电磁阀、派克比例阀、派克换向阀、派克插装阀、派克溢流阀、派克减压阀、派克压力阀、派克单向阀、派克节流阀、派克电磁线圈...
派克压力传感器 SCPSD-250-14-15;SCPSD-400-14-15;SCPSD-520-10-07;SCPSD-250-14-17;SCP-060-34-07;SCP-600-24-07;SCPSD-100-04-05;SCPSD-015-14-05;SCPSD-060-04-07;SCPSD-100-04-15;
止回阀 C800B;C1200S;9C600S;9C1200S;CS1600S;CS1200S;
增压阀 SD500A06V4;
减压阀 PRDM2PP21SVG;PRDM2PP21KVG;PRDM2PP06KVG;DWLC252015E;
插装阀CP104P;DPR103C06M;DPR103C03M;
截止阀M16WU16LRGSSHT,M25WU16LRGSSHT,PNM16WU16LRGSSHT,PNMN25WU16LRGSSHT;
先导式压力阀 VMY160A10V1P; BD15AAANB10
先导式压力比例阀VMY160L06NV1P;
压力开关 PSB160AF1A;PSB250AF1A;节流阀 FM2DDSV;FM3DDSV;FM2BBKV;FM2DDSV55;FM2DDKV;9N1600S;N200B;9F200S;9F400B;
直动式溢流阀 EVSA315A101;RDM2ATBT35SV10;
先导式溢流阀 R10R25S4SN;RM2AT17SV;RM2BT17SV;
比例溢流阀 RE06M35T2N1G0;RE06M17W2V1XW;
座阀式换向阀 D1SE83BNJW;
滑阀式换向阀 D1VW009CNTW;D1VW011ENJW91;D1VW2ENJP75;D1VW104KNJW;D1VW022CNJW91;D1VW008ENJW;D1VW008CNJW;D1VW008CNJP75;D1VW1CNJP75;D1VW008CNJP70;D1VW010CNJW;D1VW002CNJW;D1VW010CVJW;D1VW015CVJW;D1VW004C4NJW;D1VW006CNJW;D1VW004CNJW;D3DW21CNJP;
电动式换向阀 D4VW004C2NTW;D3W1KNJW;D3W1KNJP;D3W1CNJW;D3W1ENJP30;D3W4CNJP;D41VW66C4NJP;
比例换向阀 D41FHB31E1NE00;D41FHB31E1NE00;D1FVE02BCVFOA; D31FTE01CC1NF0038; D3FHE50PCNBJ00,D1FHE50BCNBJ00;D1FTE01CCVF00;D41FTE02FC1VF00;D1FTE02CCVF00;D31FTE02CC1VF00;D1FTB32FCVF00;D1FWE01FCVKW0;
液控单向阀 CPOM3DDV50;CPOM2DDV56;CPOM2BBV;CPOM6DDN ;CPOM6BBN ;CPOM6A ;CPOM6AAN ;CPOM4DDHTV;CPOM4DDHTV25;CPOM4BBHTV;CPOM4BBHTV20;CPOM4AAHTV;CPOM3DDN;CPOM3DDHTV;CPOM3DDHT;CPOM3BBV;CPOM3BBN;CPOM3BBHT;CPOM3A;CPOM3AAN;CPOM3AAHT;CPOM2DD70V;CPOM2DD50V;CPOM2DD25V;CPOM2DDZV;CPOM2DDZN;CPOM2DDYV;CPOM2DDYN;CPOM2DDN;CPOM2DDHTV;CPOM2DDHT;CPOM2BB70V;CPOM2BB50V;CPOM2BB25V;CPOM2BBYN;CPOM2BBN;CPOM2BBHTV;CPOM2BBHT;CPOM2AA70V;CPOM2AA50V;CPOM2AA25V;
派克单向阀 parker单向阀,Ermeto管式单向阀,派克Eo卡套式单向阀型号:RHD06LA3C,RHD08LA3C,RHD10LA3C,RHD12LA3C,RHD15LA3C,RHD18LA3C,RHD22LA3C,RHD28LA3C,RHD35LA3C,RHD42LA3C,RHD06SA3C,RHD08SA3C,RHD10SA3C,RHD12SA3C,RHD14SA3C,RHD16SA3C,RHD20SA3C,RHD25SA3C,RHD30SA3C,RHD38SA3C,RHZ06LREDA3C,RHZ08LREDA3C,RHZ10LREDA3C,RHZ12LREDA3C,RHZ15LREDA3C,RHZ18LREDA3C,RHZ22LREDA3C,RHZ28LREDA3C,RHZ35LREDA3C,RHZ42LREDA3C,RHZ06SREDA3C,RHZ08SREDA3C,RHZ10SREDA3C,RHZ12SREDA3C,RHZ14SREDA3C,RHZ16SREDA3C,RHZ20SREDA3C,RHZ25SREDA3C,RHZ30SREDA3C,RHZ38SREDA3C,RHV06LREDA3C,RHV08LREDA3C,RHV10LREDA3C,RHV12LREDA3C,RHV15LREDA3C,RHV18LREDA3C,RHV22LREDA3C,RHV28LREDA3C,RHV35LREDA3C,RHV42LREDA3C,RHV06SREDA3C,RHV08SREDA3C,RHV10SREDA3C,RHV12SREDA3C,RHV14SREDA3C,RHV16SREDA3C,RHV20SREDA3C,RHV25SREDA3C,RHV30SREDA3C,RHV38SREDA3C
美国Parker派克伺服比例阀 D41FHE01C5NB00 D41FHE01E1NB00 D41FHE01E1NB08 D41FHE01E1NE00 D41FHE01E2NB00 D41FHE01E2NB08 D41FHE01E2VB00 D41FHE01E4NB00 D41FHE01E4NE00 D41FHE01E5NB08 D41FHE01E5VB00 D41FHE01F1NB00 D41FHE01F1NB08 D41FHE01F1NE00 D41FHE01F1NS00 D41FHE01F1VB00 D41FHE01F2NB00 D41FHE01F2NB08 D41FHE01F2NS00 D41FHE01F2VB00 D41FHE01F4NB00 D41FHE01F4NB08 D41FHE01F4NE00 D41FHE01F4NS00 D41FHE01F4VB00 D41FHE01F4VE00 D41FHE01F5NB00 D41FHE02B1NB00 D41FHE02B1NE00 D41FHE02B2NB00 D41FHE02B4NB00 D41FHE02B4NB08 D41FHE02C1NB00 D41FHE02C1NE00 D41FHE02C2NB00 D41FHE02C2VB00 D41FHE02C4NB00 D41FHE02C4NE00 D41FHE02C4NS00 D41FHE02C4VB00 D41FHE02E1NB00 D41FHE02E1NE00 D41FHE02E2NB00 D41FHE02E4NB00 D41FHE02E5NB00 D41FHE02F1NB00 D41FHE02F1NE00 D41FHE02F1NS00 D41FHE02F2NB00 D41FHE02F2NE00 D41FHE02F2NS00 D41FHE02F4NB00 D41FHE02F4NE00 D41FHE52B1NB00 D41FHE52B1VB00 D41FHE52B2NB00 D41FHE52B2VB00 D41FHE52B4NB00 D41FHE52B4VB00 D41FHE52C1NB00 D41FHE52C1VB00 D41FHE52C2NB00 D41FHE52C2NE00 D41FHE52C2VB00 D41FHE52C4NB00 D41FHE52C4NE00 D41FHE52C4NS00 D41FHE52C4VB00 D41FHE52C5NB00 D41FHE52E1NB00 D41FHE52E1NE00 D41FHE52E2NB00 D41FHE52E4NB00 D41FHE52E5NB00 D41FHE52F1NB00 D41FHE52F1NE00 D41FHE52F1NS00 D41FHE52F2NB00 D41FHE52F2NE00 D41FHE52F2VB00 D41FHE52F4NB00 D41FHE52F4NE00 D41FHE52F4VB00 D41FHE52F5NB00 D41FHE52F5VB00 D41FHE82C1NB00 D41FHE82C1NE00 D41FSA31C1NLW0 D41FSA31C1NXW0 D41FSA31C4NXW0 D41FSA32C1NLW0 D41FSA32C2NXW0 D41FSA32C4NLW0 D41FSB11C1NLW0 D41FSB11C1NXW0 D41FSB12C2NLW0 D41FSB12C2NXW0 D41FSB12C4NXW0 D41FSB16C1NLW0 D41FSB31C1NXW0 D41FSB31C4NLW0 D41FSB31C4NXW0 D41FSB31C4NXW8 D41FSB32C1NLW0 D41FSB32C1NXW0 D41FSB32C2NLW0 D41FSB32C2NXW0 D41FSB32C4NLW0 D41FSB32C4NXW0 D41FSB34C2NXW0 D41FSB34C4NXW0 D41FSE01C1NLW0 D41FSE01C1NXW0 D41FSE01C2NLW0 D41FSE01C2NLW8 D41FSE01C2NXW0 D41FSE01C2NXW8 D41FSE01C4NLW0 D41FSE01C4NXW0 D41FSE01C5NLW0 D41FSE01C5NLW8 D41FSE01C5NXW0 D41FSE01C5NXW8