四川正品SMC减压阀,SMC先导式减压阀
SMC减压阀的出口压力很低,即使拧紧调压手轮,压力也升不起来
①减压阀进出油口接反了:对板式阀为安装板设计有错,对管式阀是接管错误。J型减压阀的进出油口跟Y型溢流阀的进出油口刚好相反。用户使用时请注意阀上油口附近所打的钢印标记(Pl、P2、L等字样),或查阅液压元件产品目录,不可设计错和接错。
②进油口压力太低,经减压阀芯节流口后,从出油口输出的压力更低,此时应查明进油口压力低的原因(例如溢流阀故障)。
③减压阀下游回路负载太小.压力建立不起来,此时可考虑在减压阀下游串接节流阀来解决。
④先导阀(锥阀)与阀座配合面之间因污物滞留而接触不良,不密合;或先导锥阀有严重划伤,阀座配合孑L失圆,有缺口,造成先导阀芯与阀座孔不密合。
⑤拆修时,漏装锥阀或锥阀未安装在阀座孔内。对此,可检查锥阀的装配情况或密合情况。
⑥主阀芯上长阻尼孔被污物堵塞,如图3-21所示,P2腔的油液不能经长阻尼孔e流入主阀弹簧腔,出油腔P2的反馈压力传递不到先导锥阀上,使导阀失去了对主阀出口压力的调节作用。阻尼孔堵塞后,主阀P。腔失去了油压p3的作用,使主阀变成一个弹簧力很弱(只有主阀平衡弹簧)的直动式滑阀,故在出油口压力很低时,便可克服平衡弹簧的作用力而使减压阀节流口关小ymin,这样进油口压力p1经ymin节流口大幅度降压至p2,使出油口压力上不来。应使长阻尼孔通畅。
⑦先导阀弹簧(调压弹簧)错装成软弹簧,或者因弹簧疲劳产生永久变形或者折断等原因,造成p2压力调不高,只能调到某一低的定值,此值远低于减压阀的最大调节压力。
⑧调压手柄因螺纹拉伤或有效深度不够,不能拧到底而使得压力不能调到最大。
⑨阀盖与阀体之间的密封不良,严重漏油。产生原因可能是O形圈漏装或损伤,压紧螺钉未拧紧以及阀盖加工时出现端面平面度误差,一般是四周凸,中间凹。
SMC减压阀的执行标准,按JB/T2205-2000《减压阀结构长度》[1] 为主的通用类。目前国内大多数减压阀生产厂家均按本标准设计生产,但本标准也不尽完美,规格不全。根据厂家所生产的减压阀规格及掌握的资料来看,各厂家连接尺寸也不尽统一,建议通用机械研究所对JB/T2205-2000《减压阀结构长度》进行修订。建议设计院及用户按标准选用,减压阀生产厂家按标准设计制造。
四川正品SMC减压阀,SMC先导式减压阀
AR110-01
AR111-01
AR111-01-1-X263
AR111-02
AR111-02-1-X102
AR111-02-1-X453
AR111-02G-2
AR111-02-X102
AR111-02-X453
AR12P-030
AR12P-270AS
AR2000-01
AR2000-01-1
AR2000-01-1M
AR2000-01-1N
AR2000-01-1R
AR2000-01BG-Q
AR2000-01G
AR2000-01-N
AR2000-01-Q
AR2000-01-X536
AR2000-02
AR2000-02-1
AR2000-02-1M
AR2000-02-1N
AR2000-02G
AR2000-02G-X129
AR2000-02G-X680
AR2000-02-M
AR2000-02-N
AR2000-02-NR
AR2000-02-Q
AR2000-02-R
AR2000-02-X125
AR2000-02-X205
AR2000-02-X665
AR200-02
AR200-02-1-X104
AR200-02-X104
AR200-03-X62
AR2000-F01G-1N
AR2000-N01
AR20-01
AR2001-01G
AR2001-01G-1
AR2001-01G-R
AR2001-02G
AR2001-02G-1
AR2001-02G-R
AR20-01-1
AR20-01-1-A
AR20-01-1N
AR20-01-1N-A
AR20-01-1R
AR20-01-1R-A
AR20-01-1R-B
AR20-01-2R
AR20-01-A
AR20-01B-A
AR20-01BE
AR20-01BE-1N
AR20-01BG
AR20-01BG-A
AR20-01BG-N
AR20-01E
AR20-01E-1
AR20-01E-1R
AR20-01E-1R-B
AR20-01E-B
AR20-01EH
AR20-01EH-Y
AR20-01E-N
AR20-01E-N-B
AR20-01E-R
AR20-01E-R-B
AR20-01E-RY-B
AR20-01E-Y
AR20-01E-Y-B
AR20-01G-N
AR20-01G-N-A
AR20-01H
AR20-01H-1
AR20-01H-N
AR20-01H-R
AR20-01H-X406
AR20-01-N
AR20-01-N-A
AR20-01-N-B
AR20-01-NR
AR20-01-R
AR20-01-R-A
AR20-01-X2005
AR20-01-Y
AR20-01-Y-A
AR20-02
AR20-02-1
AR20-02-1-A
AR20-02-1-B
AR20-02-1N
AR20-02-1N-A
AR20-02-1R
AR20-02-1R-A
AR20-02A
AR20-02-A
AR20-02A-1
AR20-02B
AR20-02-B
AR20-02BE
AR20-02BE-1N
AR20-02BE-1R
AR20-02BE-B
AR20-02BG
AR20-02C
AR20-02E
AR20-02E-1
AR20-02E-1N
AR20-02E-1N-B
AR20-02E-1NR
AR20-02E-1R
AR20-02E-1X2022
AR20-02E-B
AR20-02EH
AR20-02EH-1
AR20-02EH-1N
AR20-02E-N
AR20-02E-N-B
AR20-02E-R
AR20-02E-R-B
AR20-02E-X406
AR20-02E-Y
AR20-02G
AR20-02G-Y
AR20-02H
AR20-02H-1
AR20-02H-A
AR20-02H-N
AR20-02-N
AR20-02-N-A
AR20-02-NR
AR20-02-R
AR20-02-R-A
AR20-02-X2128
AR20-02-X425
AR20-02-Y
AR20-02-Y-A
AR201-02
AR2060-01
AR2060-01BGX550
AR2060-02
AR2060-F02
AR20-F01
AR20-F01-1
AR20-F01-1N
AR20-F01-1R
AR20-F01-1R-A
AR20-F01-A
AR20-F01E
AR20-F01E-1R-B
AR20-F01E-B
AR20-F01EH
AR20-F01EH-1Y
AR20-F01EH-Y
AR20-F01E-RY
AR20-F01E-R-YA
AR20-F01E-RY-B
AR20-F01H
AR20-F01H-Y
AR20-F01-R
AR20-F02
AR20-F02-1
AR20-F02-1-A
AR20-F02-1N
AR20-F02-1R
AR20-F02-1RY
AR20-F02-1Y
AR20-F02-A
AR20-F02BE-1N
AR20-F02E
AR20-F02E-B
AR20-F02EH
AR20-F02EH-Y
AR20-F02E-N
AR20-F02E-Y
AR20-F02H
AR20-F02H-R
AR20-F02H-Y
AR20-F02-R
AR20-F02-R-A
AR20K-01
AR20K-01-1
AR20K-01-1-B
AR20K-01-1N
AR20K-01-1R
AR20K-01-B
AR20K-01BE
AR20K-01BG
AR20K-01E
AR20K-01E-B
AR20K-01H
AR20K-01H-1
AR20K-01-R
AR20K-02
AR20K-02-1
AR20K-02-1-B
AR20K-02-1N
AR20K-02-1R
AR20K-02-B
AR20K-02B-1
AR20K-02B-B
AR20K-02BE-B
AR20K-02BE-R
AR20K-02BG
四川正品SMC减压阀,SMC先导式减压阀