Positioner is used to control or throttle flow by modulating the air to the actuator in response to an external 4-20 milliamp control signal input which is converted to a proportional 3-15 psi pneumatic signal used by the positioner.

當(dāng)外部4~20毫安控制信號(hào)輸入轉(zhuǎn)換成線性3~15 psi氣動(dòng)信號(hào)輸入被采用后18禁黄网站禁片无遮挡，定位器通過調(diào)節(jié)執(zhí)行器氣源流量來實(shí)現(xiàn)控制和調(diào)節(jié)閥門流量。

Positioner is used to control or throttle flow by modulating the air to the actuator in response to an external 4-20 milliamp, 0-5 VDC, or 0-10 VDC control signal input which is converted to a proportional 3 - 15 psi pneumatic signal used by the positioner.

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The metal mold design now adopt a form of one mole but six cayities ,this way can improve the efficiency;the mold's joint face is the ball's neutral plane,that makes the mold opened convenient;In the gating,the runner and the riser is the same ,and this design adopt scum riser,that make sure a better routing and make sure the casting's feeding;the mold use gravity to lockwasher itself;the core's material is quartz sand,and spread high tempearature resistant dope on it;In the design, same taper in the guide bush of the core box is needed to make sure open the mold easily;The insert blocks of the core box are made by numercial control processing,this way reduce the cost of production; the scale division positioner make sure the same specification has better interchangeability,also,as all the machining can be finished on the general machine tool,it make the cost low,so it can be spreaded abundant in the medium and minor enterprise;when workout the mold's processing technology,this design adopt the rough's two end plane as benchmark,the ball cavities are machined by scale division positioner;then use Autocad,Pro/e to draw planar and three dimension blueprint,use Pro/e to make three-dimensional animation.

本次設(shè)計(jì)的群鑄模具采用一模六腔形式久久精品青春五月天综合网，生產(chǎn)效率高；模具分型面選擇磨球的中性面作爱综合，使得分模方便国内免费合计自拍偷拍小视频；澆注系統(tǒng)采用澆冒口一體形式和集渣包設(shè)計(jì)，保證了良好的加工工藝和補(bǔ)縮日本中文在线中文幕；鎖模方式為重力鎖模深夜在线观看网址；砂芯采用石英砂，并在表層涂以耐高溫涂料国产操老逼视频；芯盒導(dǎo)套選擇一定的錐度国产在线久，使取模容易；芯盒鑲塊運(yùn)用數(shù)控加工黄片免费看3区，降低了生產(chǎn)成本视频欧美日韩；分度胎具保證了同種規(guī)格模具具有良好的互換性，而且因?yàn)樗屑庸せ径伎梢栽谄胀C(jī)床上完成曰韩视频第一页，生產(chǎn)成本低99黄色视频在线观看，可以為中小型企業(yè)普遍采用；在加工工藝編制過程中亚洲欧美啊啊啊啊久久久，采用兩端面互為基準(zhǔn)欧美一级A片免费不卡全部完曰久，球腔用專業(yè)夾具加工；Autocad欧美操屄，Pro/e分別制作了模具的二維和三維立體圖国产乱子伦牲交视频，并運(yùn)用Pro/e制作了三維動(dòng)畫演示。

The metal mold design now adopt a form of one mole but six cayities ,this way can improve the efficiency;the molds joint face is the balls neutral plane,that makes the mold opened convenient;In the gating,the runner and the riser is the same ,and this design adopt scum riser,that make sure a better routing and make sure the castings feeding;the mold use gravity to lockwasher itself;the cores material is quartz sand,and spread high tempearature resistant dope on it;In the design, same taper in the guide bush of the core box is needed to make sure open the mold easily;The insert blocks of the core box are made by numercial control processing,this way reduce the cost of production; the scale division positioner make sure the same specification has better interchangeability,also,as all the machining can be finished on the general machine tool,it make the cost low,so it can be spreaded abundant in the medium and minor enterprise;when workout the molds processing technology,this design adopt the roughs two end plane as benchmark,the ball cavities are machined by scale division positioner;then use Autocad,Pro/e to draw planar and three dimension blueprint,use Pro/e to make three.dimensional animation.

本次設(shè)計(jì)的群鑄模具采用一模六腔形式亚洲色最新高清av网站，生產(chǎn)效率高人人起碰人人；模具分型面選擇磨球的中性面另类图库区，使得分模方便黄色激情视频网站；澆注系統(tǒng)采用澆冒口一體形式和集渣包設(shè)計(jì)，保證了良好的加工工藝和補(bǔ)縮鸥美一级大片；鎖模方式為重力鎖模性爱网址大全；砂芯采用石英砂，并在表層涂以耐高溫涂料久久久久久蜜精品精品免费；芯盒導(dǎo)套選擇一定的錐度日韩视频精品第一页在线观看网站，使取模容易；芯盒鑲塊運(yùn)用數(shù)控加工性欧美专区，降低了生產(chǎn)成本AV福利网站；分度胎具保證了同種規(guī)格模具具有良好的互換性，而且因?yàn)樗屑庸せ径伎梢栽谄胀C(jī)床上完成免费黄色黄站，生產(chǎn)成本低www.国产盗摄.com，可以為中小型企業(yè)普遍采用；在加工工藝編制過程中，采用兩端面互為基準(zhǔn)五月婷婷超碰在线，球腔用專業(yè)夾具加工麻豆国产香蕉久久精品；Autocad，Pro/e分別制作了模具的二維和三維立體圖国产高清一级做a爱在线观看，并運(yùn)用Pro/e制作了三維動(dòng)畫演示真人实拍AV在线播放。

Intelligent valve positioner Different intelligent valve positioner both structural and functional similarities, but also have their own characteristics.

新型智能型閥門定位器不同的智能型閥門定位器既有結(jié)構(gòu)和功能上的共性，同時(shí)也各有其特點(diǎn)国产精品永久免费高清。

Therefore, the intelligent valve positioner is seen as the future direction of development of the valve positioner

所以亚洲综合无码一区二区毛片，智能型閥門定位器被看作未來閥門定位器的發(fā)展方向。

Therefore, the intelligent valve positioner is seen as the future development direction of the valve positioner.

所以免费无码中文A级毛片，低溫閥門智能型閥門定位器被看作未來閥門定位器的發(fā)展方向欧美性爱在线视频黑白配。

If using digital locator precision by increasing the control valves to improve valve control performance, successful applications have if ND800 digital positioner for rotary control valves, we can make a variable range of process parameters increased by 50%, and then with the the characteristics of control valve valve positioner of the electronic properties of the match to further improve the control performance.

如采用數(shù)字定位器通過提高控制閥的精度來提高閥門的控制性能，成功的應(yīng)用有如果將ND800數(shù)字定位器用于旋轉(zhuǎn)控制閥国产一级造爱视频，就能夠使工藝參數(shù)的可變范圍提高50％久久只出精品，再通過與控制閥的特性閥門定位器的電子特性的匹配來進(jìn)一步提高控制的性能。

Positioner SideControl, Digital electropneumatic positioner, compact metal housing, graphic display with backlight, easy start-up, comprehensive range of additional software functions, assembly acc.

定位SideControl波多野结衣在线综合网，數(shù)字電子氣動(dòng)日日日射夜，緊湊的金屬外殼，帶背光圖形顯示中出在线播放亚洲，易于啟動(dòng)欧美黄色视频和网站，全面增加軟件功能，裝配協(xié)調(diào)會(huì)日韩一级黄片。

The following cases, to go with locator: 1, medium pressure high pressure big time; 2, valve diameter is large Forged Gate, Globe, Check Valves (DN 00); 3, high or low temperature control valve; 4, the action necessary to raise the speed control valve; 5, using standard signal, the operation of non-standard spring when the implementing agency (20 ~ 100KPa spring outside the range); 6, when used for sub-process control; 7, when the valve to achieve the reverse action (air to close each open-type gas conversion); 8, need to change the valve's flow characteristic time (you can change the positioner cam); 9, no spring actuator or piston actuator, the proportion of action to achieve the time; 10, electrical signals to operate pneumatic actuator must Distribution - gas valve positioner.

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