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梅索尼蘭Masoneilan定位器8013-255
定位器8013-255是防爆型，定位器8013-257是升級版本，既防風(fēng)防雨又帶防爆哦
Cam: Only one cam can be provided, depending on the
selected lobe, equal-percentage or linear (and linear splitrange)
control characteristics. Linkage and associated
backlash problems are essentially eliminated by mounting the
cam directly to the end of the plug shaft (rotary valves) or the
actuator stem (reciprocating valves).
Electrical circuit: The 8013 Series electro-pneumatic
positioner can be supplied or easily adapted to accommodate
the DC output signals of nearly all the electric controllers
presently available. The coil is impregnated with an insulating
material
凸輪:只有一個凸輪可以提供根據(jù)
選擇葉,等百分比或線性(和線性splitrange)
控制的特點。鏈接和相關(guān)
反彈問題本質(zhì)上是被掛載
凸輪結(jié)束直接塞軸(旋轉(zhuǎn)閥)或
執(zhí)行機(jī)構(gòu)閥桿(往復(fù)閥)。
電路:8013系列電動氣動
定位器可以提供或容易適應(yīng)適應(yīng)
幾乎所有的直流輸出信號電動controlle
The primary function of a valve positioner is to ensure that the
control valve plug position is always proportional to the value of
the controller output signal, regardless of packing box friction,
diaphragm actuator hysteresis, or out-of-balance forces on the
valve plug. The controller output signal may be pneumatic or
electric, depending on the type of positioner.
GE’s Masoneilan 8012 and 8013 Series cam positioner is a forcebalance
electro-pneumatic device which, by directly comparing
valve position with a controlled DC output signal, provides
excellent dynamic response and positioning accuracy. One multilobe
cam provides field-changeable linear- or percentage-control
characteristics without additional parts.
閥門定位器的主要功能是確保
控制閥插頭位置總是成正比的價值
控制器輸出信號,無論包裝盒子摩擦,
薄膜執(zhí)行機(jī)構(gòu)滯后,或不平衡的力量
閥塞。氣動或控制器的輸出信號
電,這取決于類型的定位器。
通用電氣的Masoneilan 8012和8013系列凸輪定位器是一個forcebalance
電動氣動裝置,通過直接比較
閥pos
The 8013 Series electro-pneumatic cam positioner is able:
? To change the valve action (increase in electrical signal opens
or closes the valve)
? To change control characteristics (linear or equal-percentage)
? To operate each of two control valves (split-range)
The 8013 Series positioner is available for either direct action
(increase in electrical signal increases output pressure) or
reverse action (increase in electrical signal decreases output
pressure). In addition, the positioner provides an accurate
means of split-ranging controller output signal for sequential
operation of two control valves by a single controller
8013系列電動氣動凸輪定位器可以:
?改變閥操作(增加電信號打開
或關(guān)閉閥)
?更改控制特征(線性或相同比例)
?操作每兩個控制閥(分段)
8013系列定位器是對直接行動
(增加電信號輸出壓力增加)或
扭轉(zhuǎn)操作(增加電信號減少輸出
壓力)。此外,定位器提供的
Housing: The cast aluminum case is mounted at the front
of the device by means of a mounting plate and a molded
support.
Beam and flexure bearings: Beryllium copper flexure bearings
provide friction-free fulcrum points for the beam.
Pilot: High-capacity type for fast stroking speeds. The
metering tube for the nozzle air supply is equipped with a
clean-out plunger.
住房:鑄鋁合金外殼安裝在前面
設(shè)備的安裝板和模制的手段
支持。
梁和撓曲軸承:鈹銅合金軸承曲
提供無摩擦梁支點點。
飛行員:高容量類型撫摸速度快。的
計量噴嘴供氣管是配備一個
清洗柱塞。
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