而比例伺服閥性能介于伺服閥和比例閥之間,因此應(yīng)用場合不同,伺服閥和伺服比例閥采用閥芯+閥套的結(jié)構(gòu)。中位機能種類不同.其它結(jié)構(gòu)的比例閥主要應(yīng)用在開環(huán)控系統(tǒng)及閉環(huán)速度控制系統(tǒng);因為比例閥的性能越來越好;2伺服閥的頻響(響應(yīng)頻率)更高。閥芯結(jié)構(gòu)及加工精度不同.伺服閥與比例閥之間的差別并沒有嚴(yán)格的規(guī)定。
伺服閥其實缺點極多:能耗浪費大、容易出故障、抗污染能力差、價格昂貴等等等等,好處只有一個:動態(tài)性能是所有液壓閥中最高的。就憑著這一個優(yōu)點,在很多對動態(tài)特性要求高的場合不得不使用伺服閥,如飛機火箭的舵機控制、汽輪機調(diào)速等等。動態(tài)要求低一點的,基本上都是比例閥的天下了。
一般說來,好像伺服系統(tǒng)都是閉環(huán)控制,比例多用于開環(huán)控制;其次比例閥類型要多,有比例壓力、流量控制閥等,控制比伺服要靈活一些。從他們內(nèi)部結(jié)構(gòu)看,伺服閥多是零遮蓋,比例閥則有一定的死區(qū),控制精度要低,響應(yīng)要慢。但從發(fā)展趨勢看,特別在比例方向流量控制閥和伺服閥方面,兩者性能差別逐漸在縮小,另外比例閥的成本比伺服閥要低許多,抗污染能力也強!
力士樂泵
R900951303 PGH3-2X/011RE07VU2?
R900961556 PGH3-2X/011RR07MU2?
R900951304 PGH3-2X/013RE07VU2?
R900961557 PGH3-2X/013RR07MU2?
R900961555 PGH3-2X/016LE07VU2?
R900961561 PGH3-2X/016LR07VU2?
R900951305 PGH3-2X/016RE07VU2?
R900961558 PGH3-2X/016RR07MU2?
R901147105 PGH4-3X/020RE11VE4?
R901147100 PGH4-3X/020RE11VU2?
R901147100 PGH4-3X/020RE11VU2?
R901330079 PGH4-3X/020RE11WE4?
R901147110 PGH4-3X/020RR11VU2?
R901147106 PGH4-3X/025RE11VE4?
R901147101 PGH4-3X/025RE11VU2?
R901271425 PGH4-3X/025RE11WU2?
R901147111 PGH4-3X/025RR11VU2?
R901147107 PGH4-3X/032RE11VE4?
R901147102 PGH4-3X/032RE11VU2?
R901296753 PGH4-3X/032RE11WU2?
R901147112 PGH4-3X/032RR11VU2?
R901147108 PGH4-3X/040RE11VE4?
R901147103 PGH4-3X/040RE11VU2?
R901296755 PGH4-3X/040RE11WU2?
R901147113 PGH4-3X/040RR11VU2?
R901147109 PGH4-3X/050RE11VE4?
R901147104 PGH4-3X/050RE11VU2?
R901147114 PGH4-3X/050RR11VU2?
R901274915 PGH4-3X/050RR11WU2?
R901286225 PGH4-3X/063RE11VE4?
R901286223 PGH4-3X/063RE11VU2?
R901147115 PGH5-3X/063RE11VU2?
R901147129 PGH5-3X/063RR11VU2
R900972378 PGH2-2X/005RR07VU2
R900968999 PGH2-2X/005RE07VU2
R900951305 PGH3-2X/016RE07VU2
R900951304 PGH3-2X/013RE07VU2
R900951303 PGH3-2X/011RE07VU2我們主營的產(chǎn)品:原裝德國BOSCH REXROTH(博世-力士樂)液壓閥,柱塞泵,馬達(dá). Rexroth力士樂
力士樂葉片泵
PV7-1X/10-14RE01MC0-16,
PV7-1X/25-45RE01MC0-08,
PV7-1X/10-14RE01MC0-16,?
PV7-1X/25-45RE01MC0-08,
R900533582 PV7-1X/16-30RE01MCO-08,
R900534143 PV7-1X/10-20RE01MCO-10,
R900534508 PV7-1X/25-45RE01MCO-08,
R900580381 PV7-1X/10-14RE01MCO-16,
PV7-17/10-20RE01MCO-10
PV7-17/10-14RE01MCO-16
R901292147 PV7-1X/10-20RE01MCO-10-A497
PV7-11/06-10RA01MA0-05
PV7-1X/16-20RE01MC0-16
PV7-1A/16-30RE01MCO-08
PV7-2X/20-25 RA01MA0-10
PV7-11/06-10RA01MA0-10?
PV7-17/10-14RE01MCO-16
PV7-11/06-10RA01MA0-10
PV7-17/10-14RE01C0-16
PV7-17/10-20RE01MCO-10
PV7-17/10-14RE01MCO-16
R901292147 PV7-1X/10-20RE01MCO-10-A497
PV7-11/06-10RA01MA0-05
PV7-1X/16-20RE01MC0-16
PV7-1A/16-30RE01MCO-08
PV7-2X/20-25 RA01MA0-10
PV7-11/06-10RA01MA0-10?
PV7-17/10-14RE01MCO-16
PV7-11/06-10RA01MA0-10
PV7-17/10-14RE01C0-16
PV7-17/10-20REO1MC0-08
PV7-17/10-20REO1MC0-08
PV7-20/20-25RA01MA0-05
PV7-18/63-71RE07MC0-16
PV7-19/40-71RE37MC0-08
PV7-19/40-71RE37MC0-08
葉片泵 PV7-1X/10-14RE01MC0-16
葉片泵 PV7-17/16-30RE01MCO-08?
葉片泵 PV7-1X/25-30RE01MC3-16
葉片泵 PV7-1X/25-30RE01MC5-16
葉片泵 PV7-1X/25-30RE01MC7-16
葉片泵 PV7-1A/16-30RE01MCO-08?
R900506808 PV7-18/63-71RE07MC0-16
R900950954 PV7-2X/20-25RA01MA0-05
PV7-2X/20-25RA01MA0-05
PV7-17/10-14RE01MCO-16
PV7-17/10-14RE01MCO-16
PV7-2X/20-20RA01MA0-10
PV7-17/16-30REOMCO-08
PV7-20/20-25RA01MAO-10
PV7-1X/16-20
PV7-1X/63-94
PV7-1X/16-20
PV7-1X/63-94
PV7-1X/16-20
PV7-1X/63-94
PV7-1X/06-10RA01MA0-10
PV7-16/16-30RE01MCO-08
PV7-1X/40-45RE37MCO-16
PV7-17/10-20RE01MCO-10
PV7-1X/25-30RE10/MCO-16
PV7-17/10-20RE01MCO-10 RV 250/
PV7-17/10-20RE01MCO-10 RV 250/
PV7-1X/06-10RA01MAC-10
PV7-17/16-20REO1MCO-16
R900701362 PV7-1X/40-45RE37KD0-16
R900700384 PV7-1X/40-45RE37MW0-16WH
R900598753 PV7-1X/10-14RE01MC3-16
R900593330 PV7-1X/40-45RE37MD0-16
R900592237 PV7-1X/16-20RE01MC3-16
R900590087 PV7-1X/40-45RE37MC3-16
R900586235 PV7-1X/25-30RE01MC3-16
R900580384 PV7-1X/40-45RE37MC0-16
R900580383 PV7-1X/25-30RE01MC0-16
R900580382 PV7-1X/16-20RE01MC0-16
R900580381 PV7-1X/10-14RE01MC0-16
R900576487 PV7-1X/25-45RE01MC5-08WH
R900574560 PV7-1X/63-94RE07MD0-08
R900573212 PV7-1X/16-20RE01MD0-16-A234
R900571305 PV7-1X/63-71RE07KC0-16
R900568873 PV7-1X/100-150RE07KC0-08
R900568833 PV7-1X/25-45RE01MD0-08
R900564746 PV7-1X/06-10RA01MA3-10
R900563233 PV7-1X/06-10RA01MA0-10
R900562475 PV7-1X/25-30RE01KC0-16
R900561857 PV7-1X/06-10RA01MA0-05
R900561846 PV7-1X/100-150RE07MC0-08
R900561581 PV7-1X/40-71RE37MC3-08
R900560916 PV7-1X/10-14RE01KC0-16
R900560659 PV7-1X/63-94RE07MC0-08
R900560658 PV7-1X/16-30RE01MD0-08
R900560629 PV7-1X/100-150RE07MC5-08
R900556803 PV7-1X/100-118RE07MC5-16WH
R900553692 PV7-1X/63-71RE07MC5-16WG
R900553588 PV7-1X/40-45RE37MC5-16WH
R90055173 PV7-1X/25-45RE01MC7-08
R900548512 PV7-1X/10-14RE01MD0-16-A234
R900546887 PV7-1X/63-71RE07KC3-16
R900546886 PV7-1X/25-30RE01KC3-16
R900539886 PV7-1X/40-71RE37MD0-08
R900538525 PV7-1X/25-45RE01MC3-08
R900538125 PV7-1X/10-20RE01MC3-10
R900537419 PV7-1X/10-14RE01MN0-16
R900534508 PV7-1X/25-45RE01MC0-08
R900534412 PV7-1X/16-20RE01MC7-16
R900534143 PV7-1X/10-20RE01MC0-10
R900533851 PV7-1X/10-14RE01MC0-16-A184
R900533637 PV7-1X/100-118RE07MC7-16
R900533582 PV7-1X/16-30RE01MC0-08
R900533296 PV7-1X/16-30RE01MC3-08
R900532770 PV7-1X/100-118RE07MD0-16
R900535588 PV7-1X/40-71RE37MC0-08
R900535532 PV7-1X/25-45RE01MC5-08
R900523597 PV7-1X/40-45RE37KC0-16
R900520787 PV7-1X/10-14RE01MD5-16
R900520401 PV7-1X/10-14RE01MC5-16
R900519094 PV7-1X/63-71RE07MD0-16
R900518218 PV7-1X/63-71RE07MC5-16
R900517795 PV7-1X/16-20RE01MC0-16-A184
R900517464 PV7-1X/25-30RE01MC5-16
R900516546 PV7-1X/100-118RE07MC5-16
R900511986 PV7-1X/63-71RE07MC3-16
R900511215 PV7-1X/100-118RE07MC3-16
R900509506 PV7-1X/25-30RE01MD0-16
R900509274 PV7-1X/16-20RE01MD0-16
R900509053 PV7-1X/10-14RE01MC7-16
R900506809 PV7-1X/100-118RE07MC0-16
R900506808 PV7-1X/63-71RE07MC0-16
R900506473 PV7-1X/16-20RE01MC5-16
R900504653 PV7-1X/10-14RE01MD0-16
R900502277 PV7-1X/40-45RE37MC5-16
R901134661 PV7-1X/16-20RE01MD6-16
R901133981 PV7-1X/63-71RE07MC3-06-A460
R901129340 PV7-1X/100-118RE07MW6-16WH
R901081778 PV7-1X/06-14RA01MA0-10-A452
R901065655 PV7-1X/06-10RA01KA0-05
R901064326 PV7-1X/40-55RE37MC0-08-A449
R901061279 PV7-1X/100-118RE07MW0-16WG
R901059512 PV7-1X/40-71RE37MW0-08WH
R901055473 PV7-1X/40-45RE37MW0-16WG
R901049299 ABAPG-PV7-118D0 10SO18DRG/225S-4-B0/SEFR
R901047776 PV7-1X/40-45RE37MC0-16-A446
R901047606 PV7-1X/06-10RA01KA0-10
R901043560 PV7-1X/10-20RE01MW0-10WH
R901032005 PV7-1X/40-45RE37MC7-16WG
R901026649 PV7-1X/06-10RA01MA0-10-A441
R901022287 PV7-1X/25-30RE01MN0-16
R901021722 PV7-1X/63-71RE07KW0-16WG
R901017159 PV7-1X/63-71RE07MW0-16WH
R900979440 PV7-1X/40-45RE37MW0-16
R900978121 PV7-1X/06-10RE01MA3-10
R900976176 PV7-1X/25-45RE01MN0-08
R900976100 PV7-1X/63-71RE07MC6-16
R900973308 PV7-1X/06-14RA01MA0-07-A399
R900973306 PV7-1X/06-14RA01MA0-04-A399
R900964375 PV7-1X/06-14RE01MA3-07
R900963916 PV7-1X/06-10RA01MA0-10-A501
R900961521 PV7-1X/100-118RE07MC6-16
R900959317 PV7-1X/40-45RE37MC7-16
R900958306 PV7-1X/06-14RE01MA0-07
R900954137 PV7-1X/40-45RE37MC6-16
R900952282 PV7-1X/06-14RA01MA3-07
R900950419 PV7-1X/100-118RE07MD0-16-A234
R900950061 PV7-1X/100-118RE07MC5-16WG
R900949187 PV7-1X/100-118RE07MD6-16
R900948299 PV7-1X/100-150RE07MC5-08WH
R900946174 PV7-1X/40-45RE37MC0-16-A276
R900942455 PV7-1X/63-71RE07MC5-16WH
R900941073 PV7-1X/10-14RE01MC0-16-A268
R900941071 PV7-1X/10-14RE01MC0-16-A267
R900939159 PV7-1X/16-20RE01MN0-16
R900937407 PV7-1X/100-150RE07KD0-08
R900936326 PV7-1X/06-10RE01MA0-05
R900935443 PV7-1X/40-45RE37MC3-16-A184
R900933324 PV7-1X/10-14RE01MC5-16WH
R900933323 PV7-1X/25-30RE01MC5-16WH
R900931321 PV7-1X/06-14RA01MA0-04-A257
R900930060 PV7-1X/10-14RE01MC0-16-A202
R900928704 PV7-1X/100-118RE07MN0-16