working temperature：ordinary temperature
工作溫度：普通溫度
standard：ISO9001
標(biāo)準(zhǔn)：ISO9001
applicable medium：water
適用介質(zhì)：水
type of connection：butt welding
連接方式：對(duì)縫焊接
drive mode：self-operated
驅(qū)動(dòng)方式：自動(dòng)
material：stainless steel
材料：不銹鋼
Type：self-operated
類型：自動(dòng)型
transport package：plywood case
運(yùn)輸包裝：膠合板箱
specification：60KG/PC
規(guī)格：60KG/PC
brand：GUTE
商標(biāo)：GUTE
The body type of control valve is a lot of, commonly used through single seat, through double seat, Angle, diaphragm, small flow, tee, eccentric rotation, butterfly, sleeve type, spherical, etc.In the specific selection, the following considerations can be made:
1. It is mainly considered according to the selected flow characteristics, unbalanced forces and other factors.
2. When the fluid medium is a suspension containing a high concentration of wear particles, the internal material of the valve should be hard.
3. As the medium is corrosive, try to choose a simple valve structure.
4. When the medium temperature, pressure and high change, should choose the valve core and valve seat material by temperature, pressure change small valve.
5. Flash and cavitation occur only in liquid media.In the actual production process, flash and cavitation will form vibration and noise, shorten the service life of the valve, so the valve should be selected to prevent flash and cavitation.
控制閥的閥體型式很多，常用的有單閥座、雙閥座、角式、隔膜式、小流量、三通、偏心旋轉(zhuǎn)、蝶式、套筒式、球形等。在具體選型時(shí)，可作以下考慮:
1. 主要根據(jù)所選的流動(dòng)特性、不平衡力等因素進(jìn)行考慮。
2. 當(dāng)流體介質(zhì)是含有高濃度磨損顆粒的懸浮液時(shí)，閥門內(nèi)部的材料應(yīng)該是堅(jiān)硬的。
3.由于介質(zhì)具有腐蝕性，盡量選用簡(jiǎn)單的閥門結(jié)構(gòu)。
4. 當(dāng)介質(zhì)溫度、壓力和高變化時(shí)，應(yīng)選用由溫度、壓力變化小的閥芯和閥座材料。
5. 閃光和空化只發(fā)生在液體介質(zhì)中。在實(shí)際生產(chǎn)過(guò)程中，閃蒸和汽蝕會(huì)形成振動(dòng)和噪聲，縮短閥門的使用壽命，因此應(yīng)選用防止閃蒸和汽蝕的閥門。
1. There are various types of control valves, and their applications are different. Therefore, the type of control valve should be reasonably selected according to the requirements of the production process.
2. Pneumatic control valves are divided into two types: gas opening and gas closing.The gas-open control valve closes in the failure state, and the gas-close control valve opens in the failure state.Some auxiliary equipment can be used to form a protection valve or to make the control valve self-lock, that is, the control valve to maintain the failure before the valve opening.
3. The way of gas opening and gas closing can be achieved through the type of positive and reactive actuator and the combination of positive and anti-body valves. When using the valve positioner, it can also be achieved through the valve positioner.
4. Various control valves have their own characteristics with different structures.
1. 控制閥有各種類型，它們的應(yīng)用是不同的。因此，應(yīng)根據(jù)生產(chǎn)工藝的要求合理選擇控制閥的類型。
2. 氣動(dòng)控制閥分為兩種類型:氣體開(kāi)啟閥和氣體關(guān)閉閥。氣開(kāi)控制閥在故障狀態(tài)下關(guān)閉，氣關(guān)控制閥在故障狀態(tài)下打開(kāi)。一些輔助設(shè)備可以用來(lái)形成保護(hù)閥或使控制閥自鎖，即使控制閥保持故障后才能開(kāi)啟。
3.通過(guò)正、反式執(zhí)行機(jī)構(gòu)和正、反閥組合，實(shí)現(xiàn)氣體的開(kāi)啟和關(guān)閉方式。在使用閥門定位器時(shí)，也可以通過(guò)閥門定位器來(lái)實(shí)現(xiàn)。
4. 各種控制閥都有自己的特點(diǎn)，有不同的結(jié)構(gòu)。
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