叠加式减压阀 PRDM2PP16SVG15现货

叠加式减压阀 PRDM2PP16SVG15　一般说来，好像伺服系统都是闭环控制，比例多用于开环控制；其次比例阀类型要多，有比例压力、流量控制阀等，号：D3W004CNJW42 连接形式：法兰 品牌：Parker/派克
适用介质：油品
D3W001CNAW42
D3W001CNGW42
D3W001CNGWS442
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控制比伺服药灵活一些。从他们内部结构看，伺服阀多是零遮盖，比例阀则有一定的死区，控制精度要低，向应要慢。但从发展趋势看，特别在比例方向流量控制阀和伺服阀方面，两者性能差别逐渐在缩小，另外比例阀的成本比伺服阀要低许多，抗污染能力也强！
伺服阀与比例阀的区别F12-040-RF-IV-K-000-000-0
F12-040-LF-IH-K-000-000-0(3799516)
F12-040-LF-IN-K-000-000-0(3781294)
F12-040-LF-IV-K-000-000-0(3783376)
F12-040-LS-SH-S-000-000-0(3799517)
F12-040-LS-SH-T-000-000-0(3799518)
F12-040-LS-TH-S-000-000-0(3780950)
F12-040-LS-TH-T-000-000-0(3782675)
F12-040-MF-CH-C-000-000-0(3799520)
F12-040-MF-CH-C-000-000-P(3782743)
F12-040-MF-CH-C-000-L01-0(3782446)
F12-040-MF-CH-C-244-000-0(3799545)
F12-040-MF-CH-C-248-000-0(3780206)
F12-040-MF-CH-C-248-000-S(3781978)
F12-040-MF-CH-C-294-000-0(3782387)
F12-040-MF-CH-C-294-000-S(3782313)
F12-040-MF-CH-X-264-000-0(3781029)
F12-040-MF-CH-X-300-000-0(3783054)
F12-040-MF-CV-C-000-000-0(3799521)
F12-040-MF-CV-X-264-L01-0(3783434)
F12-040-MF-IE-D-000-000-0(3799522)
F12-040-MF-IE-K-000-000-0(3799523)
F12-040-MF-IE-K-000-L01-0(3785583)
F12-040-MF-IH-D-000-000-0(3799525)
F12-040-MF-IH-D-000-000-S(3799966)
F12-040-MF-IH-D-000-L01-0(3799509)
F12-040-MF-IH-D-000-L01-S(3783011)
F12-040-MF-IH-D-000-L02-0(3781143)
F12-040-MF-IH-D-239-000-0(3799548)
F12-040-MF-IH-D-322-000-0(3785899)
F12-040-MF-IH-K-000-000-0(3799526)
F12-040-MF-IH-K-000-000-P(3785048)
F12-040-MF-IH-K-000-000-S(3780326)
F12-040-MF-IH-K-000-L01-0(3799510)
F12-040-MF-IH-K-000-L01-P(3783004)
F12-040-MF-IH-K-000-L01-S(3781290)
F12-040-MF-IH-Z-000-000-0(3799527)
F12-040-MF-IH-Z-000-L01-0(3782983)
F12-040-MF-IN-K-000-000-0(3799528)
F12-040-MF-IN-X-264-000-0(3781137)
F12-040-MF-IV-D-000-000-0(3799529)
F12-040-MF-IV-D-000-L01-0(3799511)
F12-040-MF-IV-K-000-000-0(3799530)
F12-040-MF-IV-K-000-L01-0(3782388)
F12-040-MF-IV-K-000-L01-P(3785758)
F12-040-MF-IV-Z-000-L07-0(3783330)

　　伺服阀与比例阀之间的差别并没有严格的规定，因为比例阀的性能越来越好，逐渐向伺服阀靠近，所以近些年出现了比例伺服阀。 
　　非要说差别，主要体现在一下几点： 
　　1.伺服阀中位没有死区，比例阀有中位死区； 
　　2.伺服阀的频响（响应频率）更高，可以高达200Hz左右，比例阀一般*高几十Hz； 
　　3.伺服阀对液压油液的要求更高，需要精过滤才行，否则容易堵塞，比例阀要求低一些。 
　　比例伺服阀性能介于伺服阀和比例阀之间。 
　　比例换向阀属于比例阀的一种，用来控制流量和流向。D1VW001CNGW PAVC1002R4222 D1FBB31FC0NJW0
D1VW001CNGWS3 PAVC1002R426A1C22 D41FHE02C1NE00
D1VW001CNJD PAVC1002R426A422 D81FSE01E5NLW0
D1VW001CNJDJ5 PAVC1002R426A4S22 D111FSE01L5NLW0
D1VW001CNJDL PAVC1002R426A4SP22 D1FPE55MA9NB00
D1VW001CNJDLJ5 PAVC1002R426B122 D36FHE52A1NB00
D1VW001CNJEE PAVC1002R426B122- D41FHE01C4NS00
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D1VW001CNJWL PAVC1002R426B222 D41FSE01C5NLW0
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D1VW001CNUW PAVC1002R42A22 D31FSE01B2NLW0
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D1VW001KNJW PAVC1002R4ME22 D3FPE01YC9NS03
D1VW001KNJWI4N PAVC10032L426A4AP22 D81FSE07E2NXW0
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D1VW001KNJWTI4N PAVC10032L42A22 D31FHE02C4VE00
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