威格士電磁閥@美國威格士
VICKERS電磁閥和安全閥為一體，組成先導(dǎo)式壓力閥，該閥即是卸荷閥又是安全閥，有時(shí)又是溢流閥．卸荷時(shí)其控制油道貫穿各路換向閥，同前述卸荷油道．當(dāng)各路換向閥處于中立位置時(shí)，卸荷閥的控制油道（見圖1b和圖2）貫穿各路換向閥并與油箱連通．卸荷時(shí)，大部分油液卸荷，通道短，壓力損失低．任一路閥換向工作，便切斷控制油道，油源來油就從換向閥進(jìn)入執(zhí)行元件工作，其工作壓力大小由導(dǎo)閥控制．此時(shí)系統(tǒng)壓力為導(dǎo)閥調(diào)整壓力．該種卸荷方式，即使換向閥路數(shù)增加，只是控制油道增加，卸荷壓力增加不大，始終保持較低卸荷壓力，此種卸荷方式多用于手動(dòng)換向閥，卸荷可靠．
VICKERS電磁閥主要用在電氣液壓伺服系統(tǒng)中作為執(zhí)行元件（見液壓伺服系統(tǒng)）。在伺服系統(tǒng)中，液壓執(zhí)行機(jī)構(gòu)同電氣及氣動(dòng)執(zhí)行機(jī)構(gòu)相比，具有快速性好、單位重量輸出功率大、傳動(dòng)平穩(wěn)、抗干擾能力強(qiáng)等特點(diǎn)。另一方面，在伺服系統(tǒng)中傳遞信號和校正特性時(shí)多用電氣元件。因此，現(xiàn)代高性能的伺服系統(tǒng)也都采用電液方式，伺服閥就是這種系統(tǒng)的必需元件
KFD2-STC4-EX1 KFD2-SR2-EX2.W KFD0-CC-EX1 KFD0-CS-1.50 KFD0-CS-Ex1.50 P
KFDO-CS-EX1.51P KFD0-SCS-EX1.55 KFD0-TR-1
KFD0-HMS-16 KFD2-BR-1.PA.P3
KFD2-CD-EX1.32 KFD2-CD2-EX1
威格士電磁閥@美國威格士
KFD2-CD2-EX2.LK KFD2-CD4-EX1.LK KFD2-CR-EX1.30-200
KFD2-CR-EX1.30300 KFD2-CRG-EX1.D KFD2-CS-EX2.51P
KFD2-DWB-1.D KFD2-DWB-EX1.D KFD2-EB.R2A.B
KFD2-EB2.R4A.B KFD2-HMM-16 KFD2-EB:R4A.B-Y44151
KFD2-EB2 KFD2-EB.R4A.B KFD2-GS-1.2W
KFD2-SCD-EX1.LK KFD2-SCD2-EX1.LK KFD2-SD-EX1.17
KFD2-SD-EX1.48-90A KFD2-SH-EX1 KFD2-SL2-EX1.B
KFD2-SL2-EX2 KFD2-SL2-EX2.B KFD2-SR-EX2.W
KFD2-SR2-EX1.W KFD2-SR2-EX1.W.LB KFD2-SR2-EX2.W
KFD2-SR2-EX2.2S KFD2-RR-EX1 KFD2-ST2-EX1.LB
KFD2-STC1-EX1 KFD2-STC3-EX1 KFD2-STC4-1
KFD2-STC4-EX1 KFD2-STC4-EX1-Y122583 KFD2-STC4-EX1.20
KFD2-STC4-EX2 FKD2-STV3-EX1.1 KFD2-STV4-EX1.1
KFD2-SOT-EX2 KFD2-S0T2-EX1.LB KFD2-SOT2-EX2
KFD2-PT2-EX1-3 KFD2-PT2-EX1-5 KFD2-UFC-1.D
KFD2-UFC-EX1.D KFD2-UT-EX1 KFD2-UT2-EX1
KFD2-UT2-EX2 KFD2-GU-1 KFD2-GU-EX1
KFD2-GUT-1.D KFD2-GS-1.2W KFD2-UFC-EX1.D
KFD2-VR-EX1.1P KFD2-VR-EX1.50M KFD2-VR4-EX1.26
KFA5-SR2-EX1.W KFA5-SR2-EX2.W KFA5-SOT2-EX2
KFA6-DWB-EX1.D KFA6-DWB-1.D KFA6-ER-1.5
KFA6-ER-1.6 KFA6-ER-1.W.LB KFA6-SOT2-EX2
KFA6-STR-1.24.4 KFA6-STR-1.24.500 KFA6-SR2-EX1.W
KFA6-SR2-EX2.W KFU8-DW-1.D KFU8-DWB-1.D
KFU8-FSSP-1.D KFU8-UFC-1D KFU8-UFC-EX1.D
KHA6-SH-EX1 KSD2-CO-EX KSD2-CI-S-EX.HKFD2-STC4-EX1 KFD2-SR2-EX2.W
KFD0-CC-EX1 KFD0-CS-1.50 KFD0-CS-Ex1.50 P KFDO-CS-EX1.51P
KFD0-SCS-EX1.55 KFD0-TR-1 KFD0-HMS-16
KFD2-BR-1.PA.P3 KFD2-CD-EX1.32 KFD2-CD2-EX1
KFD2-CD2-EX2.LK KFD2-CD4-EX1.LK KFD2-CR-EX1.30-200
KFD2-CR-EX1.30300 KFD2-CRG-EX1.D KFD2-CS-EX2.51P
KFD2-DWB-1.D KFD2-DWB-EX1.D KFD2-EB.R2A.B
KFD2-EB2.R4A.B KFD2-HMM-16 KFD2-EB:R4A.B-Y44151
KFD2-EB2 KFD2-EB.R4A.B KFD2-GS-1.2W
KFD2-SCD-EX1.LK KFD2-SCD2-EX1.LK KFD2-SD-EX1.17
KFD2-SD-EX1.48-90A KFD2-SH-EX1 KFD2-SL2-EX1.B
點(diǎn)擊放大