例如：通过驱动阀使其走过的步数超过总步数，可以确定阀完全被关死，这时的参考点是准确的。选型表格（作为
li ru tong guo qu dong fa shi qi zou guo de bu shu chao guo zong bu shu ke yi que ding fa wan quan bei guan si zhe shi de can kao dian shi zhun que de xuan xing biao ge zuo wei
全关位置的机械止动点做为参考点。通过使阀在机械止动点仍趋向关闭位置并压紧在截断面，可以使控制器复位。
quan guan wei zhi de ji xie zhi dong dian zuo wei can kao dian tong guo shi fa zai ji xie zhi dong dian reng qu xiang guan bi wei zhi bing ya jin zai jie duan mian ke yi shi kong zhi qi fu wei
电机满步数为750步，ex7的步进电机满步数为1600步，而ex8的步进电机满步数为2600步。阀在
dian ji man bu shu wei 750 bu ex7 de bu jin dian ji man bu shu wei 1600 bu er ex8 de bu jin dian ji man bu shu wei 2600 bu fa zai
步进电机轴的影响。ex5/ex6/ex7/ex8的内部设计是alco的专利设计。ex5/ex6的步进
bu jin dian ji zhou de ying xiang ex5/ex6/ex7/ex8 de nei bu she ji shi alco de zhuan li she ji ex5/ex6 de bu jin
其具有精确的流量特性，高可靠性，极长的寿命。柔性阀板可以消除由进出阀的压差产生的水平推力对阀芯组件和
qi ju you jing que de liu liang te xing gao ke kao xing ji chang de shou ming rou xing fa ban ke yi xiao chu you jin chu fa de ya cha chan sheng de shui ping tui li dui fa xin zu jian he
特性，可在宽广的冷量范围内使阀开启程度与流量呈线性关系。（冷量对应电机步数）阀板和阀口由陶瓷制成，使
te xing ke zai kuan guang de leng liang fan wei nei shi fa kai qi cheng du yu liu liang cheng xian xing guan xi leng liang dui ying dian ji bu shu fa ban he fa kou you tao ci zhi cheng shi
轴与一传动轴连接从而把阀芯组件的旋转运动转为阀板的线性运动。2）阀体门形阀板是经特殊设计用于线性流量
zhou yu yi chuan dong zhou lian jie cong er ba fa xin zu jian de xuan zhuan yun dong zhuan wei fa ban de xian xing yun dong 2 fa ti men xing fa ban shi jing te shu she ji yong yu xian xing liu liang
冲的数量。一个脉冲将驱动电机一步爱城最新地址，例如：转子将移动α=1.8。。连续的脉冲将使其不断旋转。转子的驱动
chong de shu liang yi ge mai chong jiang qu dong dian ji yi bu ai cheng zui xin di zhi li ru zhuan zi jiang yi dong =1.8 lian xu de mai chong jiang shi qi bu duan xuan zhuan zhuan zi de qu dong
电脉冲驱动，可向任意方向旋转。否则电机将保持原位。旋转方向取决于电脉冲的相位，旋转角度的大小取决于脉
dian mai chong qu dong ke xiang ren yi fang xiang xuan zhuan fou ze dian ji jiang bao chi yuan wei xuan zhuan fang xiang qu jue yu dian mai chong de xiang wei xuan zhuan jiao du de da xiao qu jue yu mai
8由一个两相的双极步进电机驱动。此电机与其他种类的步进电机的作特性一样，例如：电爱城最新地址机受到来自驱动模块的
8 you yi ge liang xiang de shuang ji bu jin dian ji qu dong ci dian ji yu qi ta zhong lei de bu jin dian ji de zuo te xing yi yang li ru dian ai cheng zui xin di zhi ji shou dao lai zi qu dong mo kuai de
耐腐蚀的不锈钢阀体●适用于所有cfcs，hcfcs和hfcs功能1）电机ex5/ex6/ex7/ex
nai fu shi de bu xiu gang fa ti shi yong yu suo you cfcs hcfcs he hfcs gong neng 1 dian ji ex5/ex6/ex7/ex
3476,美国专利号码no.5735501,日本专利号码no.28225789.● 平衡阀口设计●
3476, mei guo zhuan li hao ma no.5735501, ri ben zhuan li hao ma no.28225789. ping heng fa kou she ji
中无液锤现象● 电机与阀合为一体，可靠性高●陶瓷材料的阀板和阀口爱城最新地址部件耐磨损●欧洲专利号码no.074
zhong wu ye chui xian xiang dian ji yu fa he wei yi ti ke kao xing gao tao ci cai liao de fa ban he fa kou ai cheng zui xin di zhi bu jian nai mo sun ou zhou zhuan li hao ma no.074
极长寿命●完全关闭功能可省去电磁阀● 流量变化呈线性● 宽广的冷量范围●连续的冷量调节，在制冷回路
ji chang shou ming wan quan guan bi gong neng ke sheng qu dian ci fa liu liang bian hua cheng xian xing kuan guang de leng liang fan wei lian xu de leng liang diao jie zai zhi leng hui lu
凝压力调节爱城最新地址阀，液位控制器等使用。● 全封闭设计● 步进电机驱动●极短时间内从全关到全开● 高精确性●
ning ya li diao jie ai cheng zui xin di zhi fa ye wei kong zhi qi deng shi yong quan feng bi she ji bu jin dian ji qu dong ji duan shi jian nei cong quan guan dao quan kai gao jing que xing
模块·ec3-331 冷库控制器·其他方案特点●多种功能可作为膨胀阀，热气旁通阀，吸气压力调节阀，冷
mo kuai ec3-331 leng ku kong zhi qi qi ta fang an te dian duo zhong gong neng ke zuo wei peng zhang fa re qi pang tong fa xi qi ya li diao jie fa leng
n提供以下几种不同的解决方案：·exd-s 独立驱动过热度控制器·exd-u 模拟爱城最新地址信号输入通用型驱动
n ti gong yi xia ji zhong bu tong de jie jue fang an exd-s du li qu dong guo re du kong zhi qi exd-u mo ni ai cheng zui xin di zhi xin hao shu ru tong yong xing qu dong
能的步进电机驱动控制阀。ex5/ex6/ex7/ex8仅为执行机构，需要控制器/驱动器。emerso
neng de bu jin dian ji qu dong kong zhi fa ex5/ex6/ex7/ex8 jin wei zhi hang ji gou xu yao kong zhi qi / qu dong qi emerso
emerson的ex5/ex6/ex7爱城最新地址/ex8是用于制冷，空调及工业冷却领域具有精确调节制冷剂流量功
emerson de ex5/ex6/ex7 ai cheng zui xin di zhi /ex8 shi yong yu zhi leng kong diao ji gong ye leng que ling yu ju you jing que diao jie zhi leng ji liu liang gong
标签：alco 电子膨胀阀 emerson(alco)公司步进电机式电子膨胀阀ex5/6/7/8简介
biao qian alco dian zi peng zhang fa emerson(alco) gong si bu jin dian ji shi dian zi peng zhang fa ex5/6/7/8 jian jie