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AVENTICS安沃驰2x二位三通 换向阀, 系列 HF03-LG-0820055101
结构特点 滑阀，零遮盖
外壳 聚酰胺(尼龙)，增强型玻璃纤维
密封件材料 丙烯树胶
防护等级 IP65
额定流量Qn 850 l/min
工作电压DC 24 V
用于系列 HF03-LG,CL03
功能 常闭/常闭
操作 电子
结构特点 滑阀，零遮盖
操作 电子
先导 外部的, 内部
密封原理 软密封
组合原理（闭锁原理） 单重底板原理
工作压力范围 -0,9 ... 10 bar
控制压力 最小/最大 2,5 ... 10 bar
最低 / 最高环境温度 0 ... 50 °C
介质温度范围 0 ... 50 °C
介质 压缩空气
颗粒大小 max. 5 μm
额定流量Qn 850 l/min
先导排气 带先导集中排气
防护等级,带接口 IP65
保护电路 Z-二极管
反向极性保护 反极性保护
发光二极管状态显示 黄色
暂载率 100 %
接通时间型号 16 ms
关闭时间型号 25 ms
无用发射符合 EN 50081-1
抗干扰性符合 EN 50082-2
固定螺栓 十字型槽 DIN EN ISO 4757-Z1
拧紧螺栓的最小扭力 1,3 Nm
重量 0,082 kg
不可超过最小控制压力，否则会导致故障电路和可能发生阀故障！
压力露点必须至少低于环境和介质温度 15 °C ，并且允许 的最高温度为 3 °C 。
压缩空气的油含量必须在整个使用寿命中保持不变。
先导类型(内先导或外先导)不在阀内体现，而是在阀岛的端板上。
该先导阀经过 UL (Underwriters Laboratories) 认证。

压力调节阀亦称自力式平衡阀、流量控制阀、流量控制器、动态平衡阀、流量平衡阀，是一种直观简便的流量调节控制装置，管网中应用流量调节阀可直接根据设计来设定流量，阀门可在水作用下，自动消除管线的剩余压头及压力波动所引起的流量偏差，无论系统压力怎样变化均保持设定流量不变，该阀这些功能使管网流量调节一次完成，把调网工作变为简单的流量分配，有效的解决管网的水力失调。流量调节阀主要应用于：集中供热（冷）等水系统中，使管网流量按需分配，消除水系统水力失调，解决冷热不均问题。

压力调节阀工作原理：
通过接收工业自动化控制系统的信号（如：4~20mA）来驱动阀门改变阀芯和阀座之间的截面积大小控制管道介质的流量、温度、压力等工艺参数。实现自动化调节功能。

由于气动调节阀具有本质防爆、性能可靠等优点，国内外调节阀仍以气动为主。
过去，国内正式生产的小流量调节阀。最高使用压力可达100公斤/厘米 2 ，额定的流通能力C 值可以 从0.05 到0.0012。其阀座孔径为3毫米，阀芯为圆柱形，上面刻有一道或数道V 型槽 ，阀杆行程6毫米，阀门 无配套 的定位器，因此控制精度较差。
我国也引进了小流量调节阀。流通能力约为0.001，阀芯为带有缺口的圆柱形。工作压力为300公斤/厘米 2 阀杆行程7/16英寸，阀芯为圆锥形，该阀门带有摩尔公司 的顶装定位器。
上述这类阀门的特点是结构简单，重量轻。常用的阀座孔径为1/8～1/4英寸(约为3.175A-6.35 毫米)，阀杆行程为1/4～l/2英寸(合6.35～12.7 毫米)。这类阀门的流量能力最小可以做到0.00006，以至更小。
一般地说，圆柱开槽型的阀芯，在特性化方面比圆锥形好，它可以通过改变 槽深来获得 设计特性，但后者调节可*性好，因为通过阀门的流体，分布在阀芯截面的整个圆周上。这种阀门常用在精度要求不很高的场合。但容量精度和特性的重现性较差。
阀门流通能力，主要取决于流孔直径，对于一个1/16英寸的流孔，理论上的 Cv 值约为0·06，或者说只是接近小流量的上限。要进～步减小流量，必须从根本上减小阀芯的行程或约束流孔 的开度 。

安沃驰阀岛电磁阀0820055101

0820055001 HF03 - 5/2AR - 024DC
0820055002 HF03 - 5/2AR - 024DC
0820055051 HF03 - 5/2SR - 024DC
0820055052 HF03 - 5/2SR - 024DC
0820055101 HF03 - 3/2CC - 024DC
0820055102 HF03 - 3/2CC - 024DC
0820055201 HF03 - 3/2OO - 024DC
0820055202 HF03 - 3/2OO - 024DC
0820055301 HF03 - 3/2OC - 024DC
0820055302 HF03 - 3/2OC - 024DC
0820055311 HF03 - 3/2OC - 024DC
0820055312 HF03 - 3/2OC - 024DC
0820055501 HF03 - 5/2DS - 024DC
0820055502 HF03 - 5/2DS - 024DC
0820055601 HF03 - 5/3CC - 024DC
0820055602 HF03 - 5/3CC - 024DC
0820056001 HF02 - 5/2AR - 024DC
0820056002 HF02 - 5/2AR - 024DC
0820056051 HF02 - 5/2SR - 024DC
0820056052 HF02 - 5/2SR - 024DC
0820056101 HF02 - 3/2CC - 024DC
0820056102 HF02 - 3/2CC - 024DC
0820056201 HF02 - 3/2OO - 024DC
0820056202 HF02 - 3/2OO - 024DC
0820056301 HF02 - 3/2OC - 024DC
0820056302 HF02 - 3/2OC - 024DC
0820056501 HF02 - 5/2DS - 024DC
0820056502 HF02 - 5/2DS - 024DC
0820056601 HF02 - 5/3CC - 024DC
0820056602 HF02 - 5/3CC - 024DC
R480201358 HF03LG VER 54 BBBBBB
R480202137 VTS HF 03 VER 12 BBBBBBBBCCXX
R480202364 VTS HF 03 VER 11 AAAAA
R480202867 581 VER 53 11111111
R480203914 TC08 VER 2 AAAAB
R480203960 HF04 VER 54 AIAAAAAAAAII
R480204191 CA44 VER 32 GB
R480204531 HF04 VER 11 DADCA2
R480204988 LP04 VER 68 2222222222222222
R480205324 VTS HF 02 VER 11 GGXXDBDBDBBDBBBB
R480205452 VTS CL03, IP69K VER 11 8888
R480205615 CD01 SYSTEM VER 10 1166
R480205752 VTS HF 03 VER 11 AG
R480206150 VTS HF 03 VER 11 BBAAAAXXXX
R480206271 HF04 VER 11 CCIIJAAA
R480206289 LP04 VER 68 IIIIIIIIIIIIII
R480206354 579/589 VER 12 LLL
R480206512 CD01 SYSTEM VER 31 1111111
R480206703 VTS HF 03 VER 11 XIIBB
R480207512 VTS HF 03 VER 11 BBBB
R480207562 VTS HF 03 VER 11 AAGAGA
R480207563 VTS HF 03 VER 11 GGGAG
R480207671 VTS HF 03 VER 11 BBBBBBBBBBBBB
R480207760 HF04 VER 54 CCCCCCCCCCCC
R480207791 HF04 VER 11 AAACII
R480208634 TC15 VER 0 DEE
R480208935 LP04 VER 64 IIIIIIIIII
R480209213 VTS CL03, IP69K VER 11 111
R480209657 VTS HF 03 VER 11 AAAAAAAAAAAA
R480210018 LP04 VER 64 IIIIIIIIIIIIIIII
R480211216 VTS HF 02 VER 54 BBBBBBBBXX
R480211314 VTS MC VER 11 AAAAAA
R480212145 VTS HF 03 VER 11 AAAAX
R480212146 VTS HF 03 VER 11 AAAAAAAAX
R480212147 VTS HF 03 VER 11 AAAAAAX
R480212152 VTS HF 03 VER 11 AAX
R480212418 LP04 VER 11 AAAAAAAA
R480212833 LP04 VER 11 IIIIII
R480212834 LP04 VER 11 III2
R480212835 LP04 VER 11 IIIIIIIIIIII
R480213559 HF03LG VER 54 GGGGGGGB
R480213732 HF04 VER 11 GIACCC
R480213995 HF04 VER 11 CCCCCCCC
R480214066 TC08 VER 2 AAAA
R480214215 HF03LG VER 11 AGGG
R480214319 VTS HF 03 VER 11 ADDD
R480214585 LP04 VER 11 DDDDA2
R480214841 VTS HF 03 VER 11 GGAA
R480215773 LP04 VER 12 AACD
R480215813 HF04 VER 11 IICCCCCCC2
R480216208 VTS HF 03 VER 11 GGGIIG
R480216210 VTS HF 03 VER 11 IGGIGX
R480216689 TC08 VER 2 AAAYAA
R480216799 581 VER 50 114
R480216996 LP04 VER 64 AAAACCCCAACC
R480217027 VTS HF 03 VER 11 AAAABB
R480217484 TC15 VER 2 AAAAAAAAAAA
R480218427 VTS HF 03 VER 11 GGGGGGGG
R480218747 VTS HF 03 VER 11 DDGGXXXXDD
R480218822 581 VER 50 1144
R480218909 VTS HF 03 VER 11 AAAAAAAGGG
R480219415 TC08 VER 2 BBBB
R480219435 VTS MC VER 11 GGGGGGGG
R480219905 CD01 SYSTEM VER 31 111111111111
R480220238 CD01 SYSTEM VER 10 88
R480220385 LP04 VER 64 AAAAAA
R480221064 VTS HF 03 VER 11 BBBBBBBBBX
R480221233 HF04 VER 11 CCCCCCCC
R480221488 VTS CL03, IP69K VER 11 11
R480221538 HF04 VER 11 AAAAAAAA
R480221539 HF04 VER 11 IIIIIIII
R480221728 HF04 VER 54 AAAAAAAAAAAAA222
R480221966 VTS HF 03 VER 11 BBBBBBGBBB
R480222711 VTS HF 03 VER 11 GADDDD
R480222983 HF04 VER 11 IIIIIII2
R480222994 HF04 VER 11 ADDA
R480223095 HF03LG VER 11 GAAAAAG
R480223199 HF03LG VER 11 AGG
R480223334 VTS HF 03 VER 11 BBBXAAXX
R480223340 VTS HF 03 VER 11 GGABBBBBBBBA
R480223342 VTS HF 3/2 VER 11 BDXXBBBBBBAXGXGG
R480223502 TC15 VER 2 DD
R480223520 VTS HF 02 VER 11 GGGAA
R480223836 HF03LG VER 11 AGGGG
R480223925 HF04 VER 11 CCCCCCCC
R480224220 HF04 VER 11 CCCC
R480225170 HF04 VER 11 ICCCCICCCC22
R480225446 TC08 VER 2 AAAAAAAAAAA
R480225963 VTS HF 03 VER 11 BBAAXX
R480226193 VTS HF 03 VER 11 AAAAAX
R480226752 HF04 VER 11 IIIIIIII22
R480227048 VTS HF 03 VER 54 BBBBBB
R480227137 CD01 SYSTEM VER 10 81
R480227221 VTS HF 02 VER 11 AAAB
R480227686 VTS HF 3/2 VER 11 BDDXGAXXGXGG
R480227784 TC15 VER 2 AAAA
R480227809 VTS HF 03 VER 11 AAAAAAAAXXXXXXXX
R480227958 VTS HF 03 VER 11 BBBBBBBBBBBBBB
R480228050 HF04 VER 11 CCCCCCCCCC
R480228052 HF04 VER 11 AAAAAAAAAA
R480228378 VTS HF 03 VER 11 GAAAAAAHIBH
R480228468 HF04 VER 11 IIIIIIIIII
R480228972 CD01-PA VER 30 111111111
R480229313 HF04 VER 54 AAAAAAAAAA
R480229321 TC08 VER 5 AAA
R480229334 LP04 VER 80 IIIIII
R480229561 VTS HF 03 VER 11 GI
R480229598 VTS HF 03 VER 11 GGXG
R480229833 VTS HF 02 VER 11 GGGGXXXXXXXGX
R480229882 VTS HF 02 VER 11 BBB
R480229933 HF03LG VER 11 BBGGBBAA
R480230270 TC08 VER 2 EAAAYDDD
R480230284 VTS HF 02 VER 11 GGGGXXXXXXXXX
R480230357 HF03LG VER 11 BBBBBBX
R480230560 HF03LG VER 40 GGGGGGGGGGGGGGGG
R480230895 LP04 VER 80 222222222222
R480231808 HF03LG VER 40 DDDGGGDDAAAA
R480231978 TC08 VER 2 EAA
R480232043 VTS HF 03 VER 11 AAGGGGAAGGGGGGAA
R480232047 HF03LG VER 11 GGAAX
R480232052 HF03LG VER 11 GGAAA
R480232160 581 VER 89 11111
R480232178 TC08 VER 1 AAAAAA
R480232381 TC15 VER 1 AAAAAA
R480232871 VTS HF 03 VER 11 GGGGGG
R480232877 HF03LG VER 36 GGGG
R480233001 HF03LG VER 11 AJAAAA
R480233002 HF03LG VER 11 AJAAA
R480233494 VTS HF 02 VER 11 BBB
R480233874 VTS HF 03 VER 11 BBBBBXXBBBXX
R480234482 581 VER 89 1111
R480234736 VTS HF 02 VER 11 AAA
R480234961 HF04 VER 33 DDDD
R480234988 CD01-PA VER 10 11111111
R480235210 LP04 VER 64 DDDDDDDDDDDDDD22
R480235218 LP04 VER 64 IIIDDDDDII22
R480235352 TC08 VER 5 AA
R480235354 TC08 VER 5 AAAA
R480235399 VTS HF 03 VER 11 BAAAAAAX
R480235412 LP04 VER 11 AAAAAAAAAAAA
R480235425 LP04 VER 64 CII2
R480235508 VTS HF 03 VER 11 DDDDDDDDXGGGGAXX
R480235710 LP04 VER 11 ICC2
R480235713 LP04 VER 11 ICCCC2
R480235728 HF03LG VER 41 GGGGGGDBB
R480235729 HF03LG VER 41 BBDGGGGGG
R480235761 HF03LG VER 54 AAA
R480236101 LP04 VER 12 IIIIII
R480236177 HF03LG VER 40 GGGBBGGXXXDDBBGX
R480236215 HF03LG VER 40 GGGGGGGG
R480236222 HF03LG VER 40 BBDBGBBBBXXX
R480236418 HF03LG VER 40 GGGGGGGG
R480236776 HF04 VER 40 IIIIIICIII22
R480236781 HF04 VER 40 IIIIIIIC2222
R480236881 LP04 VER 68 IIIAAACC
R480237150 VTS HF 03 VER 11 ADX
R480237152 VTS HF 03 VER 11 AAAAADX
R480238073 LP04 VER 12 AA22
R480238404 VTS HF 03 VER 11 DDDDDDDDDDDDDD
R480238727 LP04 VER 12 IIIIII
R480238939 VTS HF 03 VER 11 DDGGGGGGGGG
R480239128 LP04 VER 80 2IIIIC
R480239408 TC15 VER 2 AAAAAAAA
R480239628 VTS HF 03 VER 11 AAAAAAAA
R480239629 VTS HF 03 VER 11 AAAA
R480239835 TC08 VER 2 BYBBB
R480239856 VTS HF 03 VER 11 GGGGXXGG
R480240028 VTS HF 03 VER 54 BBBBBBBBBXX
R480240033 VTS HF 03 VER 54 BBBBBBBBBBBBBBXX
R480240047 VTS HF 03 VER 54 BBBBBBBXX
R480240503 VTS HF 03 VER 11 ABABABABABABABAB
R480241560 VTS HF 03 VER 11 HHHHHHHHHGGGGDA
R480241564 HF03LG VER 11 AAAAAAAAAGG
R480241565 HF03LG VER 11 AAAAD
R480241566 HF03LG VER 11 AA
R480241740 LP04 VER 12 AAAAAA
R480241815 HF03LG VER 40 AAAA
R480241975 HF04 VER 11 JJJJJIIIII
R480242282 VTS HF 03 VER 11 BAGBBIBBGG
R480242326 HF03LG VER 40 BBBBBBGGXXXX
R480242345 HF03LG VER 40 BBBBGBBBBGBX
R480242531 HF04 VER 40 CICCC222
R480242532 HF04 VER 40 ICCIA2
R480242946 VTS HF 03 VER 54 GGGGGGGGGGGG
R480243569 581 VER 50 11
R480243611 HF03LG VER 11 BBGGXAAAAAA
R480243717 VTS MC VER 11 GGGGXGGGGGX
R480243745 VTS HF 02 VER 11 GGGGXXXXXXXXXDD
R480243746 VTS HF 02 VER 11 GGGGXXXXXXXGXDD
R480243774 VTS MC VER 11 AAGGGGG
R480244210 VTS CL03, IP69K VER 11 881121D111F1
R480244509 HF03LG VER 11 BBBBGBX
R480244582 VTS HF 03 VER 11 BBBGGBXXXBBB
R480244589 VTS HF 03 VER 11 AAAXXXXXX
R480245153 TC15 VER 2 BBBB
R480245614 CA44 VER 35 GG
R480245751 VTS HF 03 VER 11 XABGGG
R480245763 HF04 VER 41 A2222222
R480246282 HF03LG VER 40 AAAAAAGGGGAAAAAA
R480246355 HF03LG VER 11 AAAAAAAAAB
R480246763 VTS HF 03 VER 54 BBBGX
R480247029 HF04 VER 11 ICAAAC
R480247354 VTS HF 3/2 VER 11 AAAAAAXAAAA
R480247750 VTS HF 03 VER 11 DGDDGDDGDDDDDDDD
R480248001 VTS HF 03 VER 54 GBBBGXX
R480248002 VTS HF 03 VER 54 GBBBBBGGBXX
R480248429 VTS CL03, IP69K VER 11 22222211
R480248645 VTS HF 02 VER 11 BABAAAAABBAX
R480248764 HF03LG VER 41 GGGG
R480248769 HF03LG VER 41 GG
R480249309 LP04 VER 11 AAAA
R480249645 VTS HF 03 VER 11 GAAAGGBBBBABAAAG
R480250202 VTS HF 02 VER 11 BBBBBBBBBBBBAAB
R480250206 VTS HF 02 VER 11 BBBBBBBBBBBAXBB
R480250328 HF03LG VER 40 BBBBBBBB
R480250337 HF03LG VER 40 GG
R480250339 CD01-PA VER 30 33333366
R480250543 HF03LG VER 40 GGG
R480250544 HF03LG VER 40 GGGG
R480250545 HF03LG VER 40 GGGGGG
R480250549 HF03LG VER 40 GGGGGGGG
R480250551 HF03LG VER 40 GGGGGGGGGG
R480250590 CD01-PA VER 30 SSSSSSSS1111
R480250592 CD01-PA VER 30 1111136
R480251512 VTS HF 02 VER 11 GGGAXGG
R480251617 VTS HF 03 VER 11 GGBBJ
R480251619 VTS HF 03 VER 11 GGGBAAA
R480251763 HF03LG VER 11 BBBGGBBBBBBB
R480251791 VTS HF 03 VER 11 AAAG
R480251895 HF03LG VER 33 BBBB
R480252119 LP04 VER 12 AAAAAA
R480252453 HF03LG VER 40 GGGGGGGGGGGGGGGG
R480252644 HF04 VER 11 AAAAAA
R480252803 VTS HF 03 VER 11 GGGGGG
R480253255 HF03LG VER 33 BBBB
R480253992 LP04 VER 11 AAAAA22222
R480254499 HF03LG VER 11 DDA
R480254663 HF03LG VER 40 AAAAAA
R480254940 TC15 VER 2 AAA
R480255008 HF04 VER 11 I2C2I2A2
R480255044 HF03LG VER 11 BBBBB
R480255056 VTS HF 03 VER 11 AAAAAAAAA
R480255121 VTS HF 03 VER 11 BBBDGXXXBBBB
R480255200 HF04 VER 11 CCCCCCCCAA
R480255376 VTS HF 03 VER 11 DXDDAADDDDAAAAAX
R480255377 VTS HF 03 VER 11 DDDAX
R480255635 VTS HF 03 VER 11 AGGG
R480255699 HF03LG VER 33 BGGXX
R480255715 CD01-PA VER 10 1111
R480255818 VTS HF 03 VER 11 B
R480255899 HF03LG VER 54 CCCBBB
R480256176 VTS CL03, IP69K VER 24 88888888888+
R480256178 HF03LG VER 42 DDABABABABA
R480256909 HF03LG VER 11 AAAAA
R480257125 VTS HF 03 VER 11 AAAGGGG
R480257297 HF03LG VER 41 BBDGGGGG
R480257298 HF03LG VER 41 GGGGGDBB
R480257336 581 VER 60 1122
R480257911 TC15 VER 2 AAAAAAAA
R480258187 HF03LG VER 54 BDDDBX
R480258285 VTS HF 03 VER 11 BGAAAAAAGA
R480258286 VTS HF 03 VER 11 BGAAAAAAAAGA
R480258436 HF03LG VER 43 ZZZZZZZZZZZZZZ
R480258742 VTS HF 03 VER 11 XXAAAAAA
R480258778 HF03LG VER 41 BBDGG
R480258779 HF03LG VER 41 GGDBB
R480258992 VTS CL03, IP69K VER 11 1111
R480259115 HF03LG VER 40 GGGGGGGGGGG
R480259212 VTS HF 03 VER 54 AABAAAXX
R480259431 HF03LG VER 11 GGAX
R480259588 VTS HF 03 VER 11 GGGGGGGG
R480259910 HF03LG VER 40 GGGGBXX
R480260194 HF03LG VER 11 AAAAAAAA
R480260417 579/589 VER 11 NNN
R480260420 579/589 VER 11 NNNN
R480260421 579/589 VER 11 NNNNN
R480260422 579/589 VER 11 NNNNNN
R480260562 579/589 VER 11 NN
R480260672 VTS HF 03 VER 11 XAXAAA
R480260738 HF03LG VER 40 AAAAAAAAAAGGGH
R480260897 HF03LG VER 43 BBBB
R480260949 VTS HF 03 VER 54 GGGG
R480261255 VTS HF 03 VER 11 AGGGGAGAG
R480261917 HF03LG VER 11 AAAAAAAA
R480262813 HF03LG VER 33 ABBB
R480263503 VTS HF 02 VER 11 DXDAXX
R480263504 VTS HF 02 VER 11 DDBXXX
R480263786 HF03LG VER 11 AAAAAA
R480263854 HF03LG VER 40 GGGGGG
R480263861 VTS HF 3/2 VER 11 BDDXGXGG
R480263908 VTS HF 3/2 VER 11 AAAABBBBB
R480263979 HF03LG VER 40 BBGGBBGGGGGGG
R480264447 HF03LG VER 33 BB
R480264568 HF03LG VER 40 GGGGG
R480264638 HF03LG VER 11 DDAAAA
R480264656 HF03LG VER 33 AD
R480264811 VTS HF 03 VER 11 AAAAAGGGGGGAAA
R480264846 HF03LG VER 43 GGIBDBBDAZZZZZ
R480264893 HF03LG VER 40 BBBBBGABBBBBBBBB
R480265506 HF03LG VER 11 DDAGD
R480265787 VTS HF 03 VER 11 BBBBBBAAAX
R480265829 LP04 VER 80 IIIIIIIIIIII
R480266058 VTS CL03, IP69K VER 11 11111111
R480266060 VTS CL03, IP69K VER 11 1111
R480266266 VTS HF 03 VER 11 GBBBBBXX
R480266313 HF03LG VER 40 GGGGGGGGGGGGGGGG
R480266625 VTS HF 03 VER 11 AAAAAAAAAAAAAXX
R480266626 VTS HF 03 VER 11 GGGGGGGGGGX
R480266789 HF03LG VER 11 AAAAAAAAA
R480266803 CD01-PA VER 10 1116
R480266830 VTS HF 03 VER 11 AGAGAAXX
R480267252 CD01-PA VER 10 8888
R480267558 HF03LG VER 40 AAAAAAGGAAAAIBXX
R480267560 HF03LG VER 11 AAAAAAAA
R480267710 HF03LG VER 40 ABBBABAIGA
R480267711 HF03LG VER 40 ABBBABAIGX
R480267778 TC08 VER 5 AAI
R480268280 HF03LG VER 40 GGBBBB
R480268583 VTS HF 02 VER 11 AAADDDA

安沃驰阀岛电磁阀0820055101

自力式压力调节阀因为不需要其它外来能源如电源、气源，仅靠介质自身的能量来驱动，既节能又环保，使用方便，安装完毕后设定好压力值即可投入自动运行，所以在对控制精度要求不高，又缺乏电源、气源的场合，得到了越来越广泛的使用。但在使用过程中，一定要注意选型的特殊性，否则容易引起事故。在使用过程中，要注意使用的选型和安装环境，因此，详细了解自力式压力调节阀的工作原理和结构是非常重要的。

所谓小流量调节阀，顾名思义，就是流通能力很小的调节阀。
阀门的流通能力是在统一条件下的阀门容量指标。我国用C 值表示 。其定义为：阀门全开时，当阀前后压差为1公斤/厘米 2 ，介质重度为1克/ 厘米 3 时 ，每小时流过阀门的介质量(米 3 /时)。对于不可压缩流体，在充分湍流的状态下阀门的流通能力仅仅取决于阀本身的结构。在计算所需的阀门流通能力时，应注意介质不同或流动条件不同时， 阀内流动 状态会有很大的差异。
在小流量情况下，尤其是粘性流体和低压下工作时，流体的主约束往往是层流或层流和湍流的混合态。层流时，经过阀门的介质流量和阀前后压差呈线性关系。而在层流和湍流混合态下，随着雷诺数的增加，即使压差不变，流经阀门的介质量也会增加。在完全湍流时，流量才不随雷诺数变化而变化。尽管如此，选择小流量调节阀，仍然用传统的方法和计算公式进行。但是其计算值和实际值偏离很大，据资料介绍在 Cv=0.01以下时，它只是作为一个容量指标，具有参考意义而已。实际流通能力应根据经验确定。
随着流通能力减小，阀门的可调比将下降。但最少也能保证10:l到15:1之间，如果可调比再小，就难以进行流量的调节。
阀门在串联使用时，随着开度变化，,阀前后压差也有变化，因此使阀门的工作特性曲线偏离理想特性。如果管路阻力大，直线性会变成快开特性，而丧失调节能力。等百分比特性将变成直线特性。小流量情况下，由于很少有管路阻力，上述特性畸变就不大了，对等百分比特性，实际上也就没有必要。从制造的角度来说， Cv =0.05以下时，也不可能再产生等百分比的侧面形状。因此，对小流量阀主要的问题是如何将流量控制在所需要的范围之内。
从经济效果出发，使用者希望一个阀门可同时用于截流和调节，也是可以做到的。但对于调节阀来说，主要是实现对流量的控制，关闭是次要的。认为小流量阀本身流量很小，在关闭时很容易实现截流，是错误的。国外对小流量调节阀泄漏量一般也做了规定。当Cv 值为10 时 ，该阀门的泄漏量规定为：在3.5 公斤/厘米。气压下，泄漏量为最大流量的1 % 以下。

自力式压力调节阀(以下简称压力阀)是一种无需外来能源而只依靠调介质自身的压力变化进行自动调节压力的节能型产品.具有测量、执行、控制的综合功能。广泛适用于石油、化工、冶金、轻工等工业部门及城市供热、供暖系统。本产品可用于非腐蚀性〔最高温度350℃〕的液体、气体和蒸汽等介质的压力控制装置。

安沃驰阀岛电磁阀0820055101

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安沃驰阀岛电磁阀0820055101