一個(gè)液壓系統(tǒng)的好壞不僅取決于系統(tǒng)設(shè)計(jì)的合理性和系統(tǒng)元件性能的的優(yōu)劣，還因系統(tǒng)的污染防護(hù)和處理，系統(tǒng)的污染直接影響液壓系統(tǒng)工作的可靠性和元件的使用壽命，據(jù)統(tǒng)計(jì)，國內(nèi)外的的液壓系統(tǒng)故障大約有70%是由于污染引起的。 　　油液污染對系統(tǒng)的危害主要如下：R900245924 ?PV7-1X/16-30RE01MC5-08WH

R900247239 ?PV7-1X/10-20RE01MC5-08WH

R900502277 ?PV7-1X/40-45RE37MC5-16

R900504653 ?PV7-1X/10-14RE01MD0-16

R900506473 ?PV7-1X/16-20RE01MC5-16

R900506808 ?PV7-1X/63-71RE07MC0-16

R900506809 ?PV7-1X/100-118RE07MC0-16

R900509053 ?PV7-1X/10-14RE01MC7-16

R900509274 ?PV7-1X/16-20RE01MD0-16

R900509506 ?PV7-1X/25-30RE01MD0-16

R900511215 ?PV7-1X/100-118RE07MC3-16

R900511986 ?PV7-1X/63-71RE07MC3-16

R900511987 ?PV7-1X/16-20RE01MD3-16

R900516546 ?PV7-1X/100-118RE07MC5-16

R900517464 ?PV7-1X/25-30RE01MC5-16

R900518218 ?PV7-1X/63-71RE07MC5-16

R900519094 ?PV7-1X/63-71RE07MD0-16

R900519411 ?PV7-1X/100-118RE07MN5-16

R900520401 ?PV7-1X/10-14RE01MC5-16

R900520725 ?PV7-1X/10-14RE01MD3-16

R900520787 ?PV7-1X/10-14RE01MD5-16

R900523597 ?PV7-1X/40-45RE37KC0-16

R900532770 ?PV7-1X/100-118RE07MD0-16

R900533296 ?PV7-1X/16-30RE01MC3-08

R900533582 ?PV7-1X/16-30RE01MC0-08

R900533637 ?PV7-1X/100-118RE07MC7-16

R900533919 ?PV7-1X/40-45RE37MN0-16

R900534143 ?PV7-1X/10-20RE01MC0-08

R900534412 ?PV7-1X/16-20RE01MC7-16

R900534508 ?PV7-1X/25-45RE01MC0-08

R900535061 ?PV7-1X/63-71RE07MC7-16

R900535532 ?PV7-1X/25-45RE01MC5-08

R900535588 ?PV7-1X/40-71RE37MC0-08

R900537419 ?PV7-1X/10-14RE01MN0-16

R900538125 ?PV7-1X/10-20RE01MC3-08

R900538525 ?PV7-1X/25-45RE01MC3-08

R900539468 ?PV7-1X/40-71RE37MC5-08

R900539710 ?PV7-1X/10-20RE01MC5-08

R900539886 ?PV7-1X/40-71RE37MD0-08

R900546886 ?PV7-1X/25-30RE01KC3-16

R900535061 ?PV7-1X/63-71RE07MC7-16

R900535532 ?PV7-1X/25-45RE01MC5-08

1）元件的污染磨損

　　油液中各種污染物引起元件各種形式的磨損，固體顆粒進(jìn)入運(yùn)動(dòng)副間隙中，對零件表面產(chǎn)生切削磨損或是疲勞磨損。高速液流中的固體顆粒對元件的表面沖擊引起沖蝕磨損。油液中的水和油液氧化變質(zhì)的生成物對元件產(chǎn)生腐蝕作用。此外，系統(tǒng)的油液中的空氣引起氣蝕，導(dǎo)致元件表面剝蝕和破壞。

R900984240 PGF2-2X/016LL01VM

R900984214 PGF2-2X/006RL01VMK-A385

R900984213 PGF3-3X/032LJ07VU2

R900984209 PGF3-3X/025RE07VE4-A384

R900984206 PGF2-2X/016RA01VP2

R900984168 PGF2-2X/019LN01VM

R900984157 PGF2-2X/008RE20VE4

R900984109 PGF3-3X/025LN20VM-A376

R900984061 PGF2-2X/022RJ20VU2K

R900984058 PGF2-2X/011RJ20VU2K

R900984056 PGF2-2X/006RJ20VU2K

R900983983 PGF3-3X/022LN20VM-A376

R900983980 PGF3-3X/025RT07VU2

R900983962 PGF2-2X/006RE01VE4-A361

R900983936 PGF2-2X/011RE01VE4K

R900983931 PGF2-2X/013RE01VE4-A361

R900983930 PGF2-2X/016LN20VM-A367

R900983906 PGF2-2X/011RE01VE4-A361

R900983836 PGF3-3X/040RL07VMK

R900983822 PGF2-2X/019RE01VE4K

R900983817 PGF2-2X/013LN20VM-A364

R900983816 PGF2-2X/016LN20VM-A364

R900983800 PGF3-3X/032LS07VM

R900983792 PGF3-3X/020RJ07VU2

R900983530 PGF2-2X/008RJ01VU2K

R900983485 PGF2-2X/019RT20VU2

R900983482 PGF2-2X/008RT20VU2

R900983411 PGF2-2X/016RN20VM

R900983408 PGF2-2X/011LN01VM-A325

R900979120 PGF3-3X/020RN07VM

R900978692 PGF3-3X/025LN07VMN

R900974075 PGF3-3X/032LN07VMN

R900972804 PGF1-2X/2,2LN02VM-A319

R900969302 PGF3-3X/020RO07VK4

R900969266 PGF3-3X/040LJ07VU2

R900969265 PGF3-3X/022LJ07VU2

R900969260 PGF2-2X/013RN20VM

R900969259 PGF2-2X/013LJ20VU2

R900969253 PGF1-2X/5,0RN01VM

R900969251 PGF2-2X/011LJ20VU2

R900969230 PGF1-2X/1,7RN01VM

R900969229 PGF1-2X/2,2RN01VM

R900966922 PGF3-3X/020RO07VK4K

R900966076 PGF3-3X/032LN07VM-A503

R900965822 PGF1-2X/3,2RN01VM

R900965546 PGF3-3X/040RN07VM

R900965066 PGF3-3X/025RN07VM

R900964402 PGF3-3X/040LE07VE4K

R900961100 PGF1-2X/3,2LA01VP1

R900960119 PGF3-3X/025LL07VM

R900955357 PGF3-3X/040RE07VE4-A287

R900954728 PGF2-2X/006RJ01VU2K

R900953363 PGF2-2X/008RJ01VU2

R900952850 PGF1-2X/3,2LN12VM-A387

R900951876 PGF3-3X/025LN20VMN

R900951865 PGF3-3X/025RO07VK4K

R900950915 PGF2-2X/022RS20VU2

R900950640 PGF1-2X/4,1LN01VM-A279

R900950551 PGF2-2X/008LN01VM-A279

R900950057 PGF3-3X/025LJ07VU2

R900949892 PGF3-3X/032LN20VM

R900949878 PGF3-3X/032LO20VK4

R900949876 PGF3-3X/025RO20VK4

R900949135 PGF2-2X/011RE20VE4

R900946344 PGF2-2X/011RA20VP2

R900946237 PGF2-2X/011RS20VU2

R900946180 PGF2-2X/006RS20VU2

R900943182 PGF2-2X/019RE20VE4

R900943181 PGF2-2X/013RE20VE4

R900943168 PGF3-3X/032RO07VK4

R900942208 PGF2-2X/011RN20VM

R900941181 PGF2-2X/019RS20VU2-A270B

R900938281 PGF2-2X/011RJ01VU2

R900937925 PGF2-2X/013RN01VM

R900937747 PGF3-3X/032RN07VM

R900937454 PGF1-2X/2,8LN02VM

R900936502 PGF2-2X/013LL01VM

R900932275 PGF2-2X/016RA20VP2

R900932274 PGF2-2X/013RE01VE4

R900932272 PGF2-2X/006RA01VP2也可以安裝于垂直管路或傾斜管路上。

注意事項(xiàng)

安裝止回閥時(shí)，應(yīng)特別注意介質(zhì)流動(dòng)方向，應(yīng)使介質(zhì)正常流動(dòng)方向與閥體上指示的箭頭方向相一致，否則就會(huì)截?cái)嘟橘|(zhì)的正常流動(dòng)。底閥應(yīng)安裝在水泵吸水管路的底端。

止回閥關(guān)閉時(shí)，會(huì)在管路中產(chǎn)生水錘壓力，嚴(yán)重時(shí)會(huì)導(dǎo)致閥門、管路或設(shè)備的損壞，尤其對于大口管路或高壓管路，故應(yīng)引起止回閥選用者的高度注意。

止回閥只供防止各類管路或設(shè)備上流體介質(zhì)逆流的單向啟閉閥。

SL6PB1-6X/ ，

SL6PB1-6X/V ，SL6PB2-6X/ ，SL6PB2-6X/V ，力士樂Rexroth

SL6PB3-6X/ ，SL6PB3-6X/V， SL6PB4-6X/ ，

SL6PB4-6X/V ，SV6PB2-6X/V ，力士樂Rexroth

SL10GA1-4X/ ，SL10GA1-4X/V ，

SL10GA2-4X/ ，SL10GA2-4X/V ，

SL10GA3-4X/ ，SL10GA3-4X/V ，力士樂Rexroth

SL10GA4-4X/ ，SL10GA4-4X/V ，SL10GB1-4X/ ，

SL10GB1-4X/V ，SL10GB2-4X/ ，SL10GB2-4X/V ，力士樂Rexroth

SL10GB3-4X/ ，SL10GB3-4X/V ，SL10GB4-4X/ ，

SL10PA1-4X/ ，SL10PA1-4X/V ，SL10PA2-4X/ ，力士樂Rexroth

SL10PA2-4X/V ，SL10PA3-4X/ ，SL10PA3-4X/V ，

SL10PA4-4X/ ，SL10PA4-4X/V ，SL10PB1-4X/ ，力士樂Rexroth

SL10PB1-4X/V ，SL10PB2-4X/ ，SL10PB2-4X/V ，

SL10PB3-4X/ ，SL10PB3-4X/V ，SL10PB4-4X/ ，力士樂Rexroth

SL10PB4-4X/V ，SL15GA1-4X/ ，SL15GA1-4X/V ，

SL15GA2-4X/ ，SL15GA2-4X/V ，SL15GA3-4X/ ，力士樂Rexroth

SL15GA3-4X/V ，SL15GA4-4X/ ，SL15GB1-4X/ ，

SL15GB1-4X/V ，SL15GB2-4X/ ，SL15GB2-4X/V ，力士樂Rexroth

SL15GB3-4X/ ，SL15GB4-4X/ ，SL20GA1-4X/ ，

SL20GA1-4X/V ，SL20GA2-4X/ ，SL20GA2-4X/V ，力士樂Rexroth

SL20GA3-4X/ ，SL20GA3-4X/V ，SL20GA4-4X/ ，

SL20GA4-4X/V ，SL20GB1-4X/ ，SL20GB1-4X/V ，力士樂Rexroth

SL20GB2-4X/ ，SL20GB2-4X/V ，SL20GB3-4X/ ，

SL20GB3-4X/V ，SL20GB4-4X/ ，SL20PA1-4X/ ，力士樂Rexroth

SL20PA1-4X/V ，SL20PA2-4X/ ，SL20PA2-4X/V ，

SL20PA3-4X/ ，SL20PA3-4X/V ，SL20PA4-4X/ ，力士樂Rexroth

SL20PA4-4X/V ，SL20PB1-4X/ ，SL20PB1-4X/V ，

SL20PB2-4X/ ，SL20PB2-4X/V ，SL20PB3-4X/ ，力士樂Rexroth

SL20PB3-4X/V ，SL20PB4-4X/ ，SL20PB4-4X/V ，

SL25GA1-4X/ ，SL25GA1-4X/V ,SL25GA2-4X/ ，力士樂Rexroth

SL25GA2-4X/V ，SL25GA3-4X/ ，SL25GA3-4X/V ，

SL25GA4-4X/ ，SL25GB1-4X/ ，SL25GB1-4X/V ，力士樂Rexroth

SL25GB2-4X/ ，SL25GB2-4X/V ，SL25GB3-4X/ ，

SL25GB4-4X/ ，SL25GB4-4X/V ，SL30GA1-4X/ ，力士樂Rexroth

SL30GA1-4X/V ，SL30GA2-4X/ ，SL30GA2-4X/V ，

SL30GA3-4X/ ，SL30GA3-4X/V ，SL30GA4-4X/ ，力士樂Rexroth

SL30GA4-4X/V ，SL30GB1-4X/ ，SL30GB1-4X/V ，

SL30GB2-4X/ ，SL30GB2-4X/V ，SL30GB3-4X/ ，力士樂Rexroth

SL30GB4-4X/ ，SL30PA1-4X/ ，SL30PA1-4X/V ，