一种是开关控制:要么全开、要么全关,流量要么*da、要么*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伺服阀的主阀一般来说和换向阀一样是滑阀结构,只不过阀芯的换向不是靠电磁铁来推动,而是靠前置级阀输出的液压力来推动,这一点和电液换向阀比较相似,只不过电液换向阀的前置级阀是电磁换向阀,而伺服阀的前置级阀是动态特性比较好的喷嘴挡板阀或射流管阀。
DKZOR-TE-170-L5 40产品名称:ATOS意大利阿托斯ATOS比例阀
产品介绍:Atos作为电液比例控制的###者,为您提供品种齐全的比例控制技术。通过比例控制技术,现代机器可获得快速、平稳、精确的运动控制。产品性能:比例阀工作的基本原理:电磁铁推力与基准信号成正比,因此,阀芯抵抗弹簧复进后的位移也就与基准信号成正比。
RZGA-A-010/210/M
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DPZO-LE-271-S5
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DPZO-T-271-D3/D
DPZO-T-271-L5
DPZO-T-271-S5
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DPZO-A-271-L5
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DPZO-A-271-L5/E
DPZO-A-271-L5/G
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DHA-0713/GK 24DC 24
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DHA-0751/2/M 24DC 24
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DLOH-2A-UX 24DC 21
DLOH-2C-UX 00 21
DLOH-2C-UX 24DC 21
DLOH-2C-UX 24DC 21 /PE
DLOH-2C的阀块
DLOH-3A/R-UX 24DC 21
DLOH-3A/WP-UX 24DC 21
DLOH-3A-UX 24DC
DLOH-3A-UX 24DC 21
DLOH-3A-UX 24DC 21 /PE
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DLOH-3C/GK-AO 24DC 24
DLOH-3C/WP-UX 24DC
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DLOH-3C-U-00 21
DLOH-3C-UX 00
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DLOH-3C-UX 24DC
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DLOH-3C-UX 24DC 21 /PE
DLOK-3A/GK-AO 24DC 22
DLOK-3A-OX 24DC 21
DLOK-3C-OX 24DC 21
DR-15/G 20
DR-15/G 20 /BT
DR-15/G 20 /BT
DR-5/G
DR-5/G 20
DR-5/G 20 /BT
DR-5/G 20 /BT
E-A-BC-USB/DB9
E-A-BP-USB/DB9
E-ATR-7/060/I 10
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E-ATR-7/160/I 10
E-ATR-7/250
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E-ATR-7/250/I 10
E-ATR-7/250/I 10
E-ATR-7/400
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E-ATR-7/400/I 10
E-BM-AC-011F 12 /3
E-BM-AC-011F 12 /A2
E-BM-AC-01F 12 /A2
E-BM-AC-01F/RR 12
E-BM-AC-01F/RR 12 /500
E-BM-AS-PS-01H 10
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E-C-BC-DB9/M12
E-C-BP-DB9/M12
EDS 3446-3-0250-000(没带线)(E-ATR-7/250/I)
EDS 3446-3-0250-000(有带线)(E-ATR-7/250/I)
EDS3446-3-0250-000(带线)
E-K-11B
E-K-11B
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E-ME-AC-05F
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E-ME-AC-05F 20 /3
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ATOS溢流阀
AGMZO-AE-10/315 10
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AGMZO-AE-32/315
AGMZO-TER-010/210/I
AGMZO-TER-10/100/I
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AGMZO-TER-20/210
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AGMZO-TERS-PS-010/210/I
ATOS减压阀
AGRCZO-A-10/100/P 10
AGRCZO-A-10/210 10
AGRCZO-A-10/210/P 10
AGRCZO-A-10/315 10
AGRCZO-A-10/315/P 10
AGRCZO-A-20/210/R 10
AGRCZO-AE-10/210 10
AGRCZO-AE-10/50 10
AGRCZO-AE-20/210/P
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AGRZO-A-10/100/P
AGRZO-A-10/210/P
AGRZO-A-10/210/R
AGRZO-A-10/315
AGRZO-A-20/210/18
AGMZO-TER-10/210/EI
AGMZO-TER-10/210/I
AGMZO-TER-10/315 40
AGMZO-TER-10/315/I 40/PE
KZGO-A-031/210 20
KZGO-A-031/315
HZGO-A-031/100 31
HZGO-A-031/210 31
HZGO-A-031/315 31
HZGO-A-031/315/18 31
HZMO-A-030/210 40
减压阀
RZGA-A-010/210/M 20
RZGA-A-010/32/M/7 20
RZGA-A-033/80/M/7 31
RZGO-A-010/100 20
RZGO-A-010/210 20
RZGO-A-033/100
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RZGO-AE-010/100 10
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RZGO-TER-010/100
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RZGO-TER-010/32 40
RZGO-TER-033/100
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ATOS溢流阀
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RZMO-A-010/210
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RZMO-P3-010/100/AM1NSA
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RZMO-A-010/315
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RZMO-A-010/50
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RZMO-A-030/210/18
RZMO-A-030/315