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滬標 克雷格閥門 當前位置:上海昆煉閥門制造有限公司> 克雷格閥門> 進口帶手動電磁閥
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CRAIG進口帶手動電磁閥工作原理特點:
Solenoid valve working principle characteristics:
CRAIG進口帶手動電磁閥是依靠電磁線圈產生電磁力來驅動閥門的開、關流體控制元件,是管路控制過程常用的執行器之一。CRAIG進口電磁閥按原理分為∶直動式、分步直動式、先導式三大類;按結構分為∶膜片式電磁閥和活塞式電磁閥兩類。
The electromagnetic valve is to rely on the electromagnetic coil to generate electromagnetic force to drive the valve to open, close the fluid control components, is in the pipeline control process commonly used one of the actuators.According to the principle of electromagnetic valve is divided into:direct action type, step direct-acting type,type three categories; according to the structure is divided into:electromagnetic diaphragm valve and the electromagnetic valve piston two.
CRAIG進口帶手動電磁閥的工作原理:
Electromagnetic valve works:
1、CRAIG進口直動式電磁閥∶通電時,電磁線圈產生電磁力,直接吸合閥芯,閥芯變位。斷電時,電磁力消失,閥芯靠彈簧復位。
direct-acting electromagnetic valve: power, the electromagnetic coil of electromagnetic force, the valve core is directly, the valve core displacement. Power, the electromagnetic Force disappears, the valve core by the reset spring.
2、CRAIG進口分步直動式電磁閥∶他是一種直動式和先導式相結合的原理。常閉式-當入口與出口沒有壓差時,通電后電磁力直接打開先導孔連接主閥活塞依次向上提起,閥門打開;當入口與出口達到啟動壓差時,通電后,電磁力先打開先導孔,主閥活塞上腔壓力下降,從而利用壓差和電磁力拉動主活塞,閥口打開;斷電時,靠彈簧復位關閉先導孔,主活塞上腔增壓,推動主活塞向下移動,閥關閉。常開式與常閉式相反。
step direct-acting type electromagnetic valve: it is a direct-acting and pilot-style combination principle. Normally closed, when the entrance and exit no The pressure difference, after electrify the electromagnetic force directly open the pilot hole is connected with the main valve piston turn upward, the valve opens; when the entrance and Exit to start the pressure difference, electricity, the electromagnetic force to open the pilot hole, the main valve piston chamber pressure drops, thus the use of Pressure difference and the electromagnetic force to pull the main piston, the valve port opened; when power on reset spring, closing the pilot hole, the main piston chamber booster, To promote the main piston moves downward, valve closed. Normally open and normally closed instead.
3、CRAIG進口先導式電磁閥∶常閉式一通電時,電磁力吸合先導閥芯,先導孔打開,主閥活塞上腔壓力下降,在主活塞上腔和下腔形成上低下高的壓力,這樣下腔壓力推動主活塞打開閥門;斷電時,彈簧力復位關閉先導孔,主活塞上腔增壓,在主活塞上腔和下腔形成上高下低的壓力,介質壓力和彈簧力推動主活塞,閥關閉。常開式與常閉式相反。
the pilot solenoid valve: normally closed, when energized, the electromagnetic force is a pilot valve core, the pilot hole is opened, the main valve piston chamber pressure Decline in the main piston, the upper cavity and the lower cavity is formed on the low high pressure cavity pressure, so to promote the main piston to open the valve; fault When the electricity, the force of the spring reset to close the pilot hole, the main piston cavity pressure in the main piston, the upper cavity and the lower cavity formation under low pressure Force,pressure and spring force to drive the main piston, valve closed.Normally open and normally closed instead.
CRAIG進口帶手動電磁閥產品特點:
Product foaturos:
1、線圈可長期使用。
The coil can be used for a long time.
2、使用常規產品水、氣、油通用,密封性能好。
the use of conventional products, water,gas, oil and general, good sealing performance.
3、電磁閥閥芯均為不銹鋼材料、活塞式結構,抗腐蝕、老化,動作疲勞性。
the electromagnetic valve core are made of stainless steel material, the piston type structure, corrosion, aging,fatigue resistance movement.
4、活塞環設計結構具有合理性,不被介質中的雜質卡死,金屬活塞與金屬閥腔不產生直接摩擦,長期停止動作后重新啟動,動作同樣靈敏,使用長。
the piston ring design structure is more reasonable, will not be the medium of impurities card die, metal piston and the metal valve cavity does not produce straight Ground friction, long after the restart stop action,action the same sensitivity.
CRAIG進口帶手動電磁閥提示:
Prompt:
1、如果電磁閥的出口壓力大于進口壓力,電磁閥將反向導通,此時應安裝止回閥。
if the solenoid valve outletpressure is greater than the inlet pressure,electromagnetic valve will be in the direction of conduction, you should install a check valve.
2、電磁閥去掉線圈,反向安裝,可作止回閥使用。
solenoidvalves, reverse installation, can be used as a check valve.
3、如果介質有雜質,請安裝過濾網或過濾器∶30-100目/in.
if the medium impurity, please installfilters or filter valve: 30-60/ in
CRAIG進口電磁閥流量圖:(Flow chart)

CRAIG進口帶手動電磁閥選型指導:
Electromagnetic valve selection guide:
CRAIG進口電磁閥選型應該依次遵循安全性,可靠性,適用性,經濟性四大原則和六個現場工況要求(即公稱通徑,介質種類,壓力等級,電源電壓,動作方式,其它功能)。
Selection of key: electromagnetic valve selection should inturn follow the safety,reliability, applicabllity economy of four principles and six field condition to ask(i.e.nominal diameter, media type,pressure rating, power supply voltage, action, other functions).
CRAIG進口帶手動電磁閥選型依據:
The basis for selection:
一、根據管道參數選擇CRAIG進口電磁閥的通徑規格(DN),接口方式(連接方式)
pipeline electromagnetic valve, according to the parameter selection of the path specification(DN), the interface(connection )
1、按照現場管道內徑尺寸或流量要求來確定通徑(DN)尺寸。
according to the site pipeline diameter size or flow requirements to determine the path(DN )size.
2、接口方式,一般大于DN50要選擇法蘭接口,DN15-DN50則可根據用戶需要自由選擇螺紋式或法蘭式,小于DN15的選擇螺紋式
the interface,typically greater than DN50 to choose flange joint at DN15-DN50,according to user needs can be free to choose type of thread or flange type,less than DN15 selection of thread type.
二、根據介質種類選擇CRAIG進口電磁閥的閥體材質,密封材料,溫度
according to the medium type electromagnetic valve body material, sealing material, temperature In
1、腐蝕性流體∶閥體材質宜選用不銹鋼,工程塑料或PTFE(聚四氟乙烯),并選配氟橡膠或PTFE密封材料。
the corrosive fluid:body material should choose stainless steel, engineering plastic or PTFE, and matching the fluorine rubber or PTFE sealing materials.
2、食用或純凈流體∶閥體材質宜選用衛生級材質,并選配硅橡膠密封材料。
food or clean fluid:body material should choose sanitary material,and selection of silicon rubber sealing material.
3、高溫流體∶選擇采用耐高溫的電工材料和密封材料的不銹鋼電磁閥,且要選擇金屬活塞型原理結構。
the high temperature fluid:choose high temperature electrical and seal materials stainless steel solenoid valve, and to choose the metal piston type principle structure.
4、流體狀態∶大致有氣態,液態或混合狀態,根據介質、流體的不同選用對應的原理結構,特別是口徑大于15時一定要區分開來,因它與先導孔參數有關。
the fluid state:to a gaseous, liquid or mixed states, according to the different choice of fluid medium, the principle structure, especially the diameter greater than 15 must be distinguished from it, with a pilot hole parameters.
5、流體粘度∶通常在50cst以下可任意選擇,若大過此值,則需選用稿粘度電磁閥。
the viscosity of the fluid: usually below 50cst can be chosen arbitrarily, if this value is greader than, then the selection of high viscosity electromagnetic valve.
6、流體清潔度∶介質大過少量微小雜質時,可在CRAIG進口電磁閥前安裝過慮器,選活塞式結構或先導孔大的閥芯結構
fluid cleanliness: medium more than a small amount of tiny impurities, can be in the solenoid valve installed before the filter, selected piston type structure or a pilot hole core structure.
三、根據工作時間長短或其它工況需要來選擇控制方式一常閉式,常開式,自保持式等。
according to the length of working time or other conditions need to choose the control mode: normally closed, normally open, self-retaining etc..
1、當CRAIG進口電磁閥需要長時間的開啟,并且持續開啟的時間大過關閉的時間,宜選用常開型。
when the electromagnetic valve needs a long time to open, and open time over the closing time, should choose the normally open type.
2、要是開和關頻繁切換或開啟的時間短或開、關的時間差不多時,則選常閉型。
if the opening and closing of the opening time of frequent switching or short or open, closing time almost, choose a frequently closed type.
3、用于安全保護的工況,如爐窯火焰監測,燃氣泄露報警,消防系統,應選擇緊急切斷電磁閥或長時間通電、失電關閉、手動拉開的電磁閥。
for safety protection condition, such as the furnace flame monitoring, gas leak alarm, fire safety systems, should choose an emergency cut-off electromagnetic valve, long time electricity,power loss, manually pulled off the electromagnetic valve.
4、CRAIG進口自保持式電磁閥(也稱∶雙穩態),它主要用于需要節約能源或高溫低電壓驅動的場所。
self-holding electromagnetic valve(also known as:bistable ), which is mainly used for energy or high temperature low voltage drive place.
四、電源電壓選擇∶盡量選擇常用的AC220V,DC24V較為方便,其它電壓也可選。
the supply voltage selection∶ to selection of commonly used AC220V, DC24V is more convenient, other voltage is optional.
五、根據壓力等級選擇CRAIG進口電磁閥的原理結構類型
according to the pressure level selection solenoid valve principle structure type
1、公稱壓力∶這個參數與其它通用閥門的含義是一樣的。
nominal pressure: this parameter and other general valve meaning is the same.
2、工作壓力∶是指電磁閥處于關閉狀態時,閥前端管路壓力減去閥后端管路壓力得到的數值∶工作壓力在0-0.1Pa或真空時,一般小口徑DN15以下選擇直動式、大口徑DN15以上選擇分布直動式。當工作壓力不低于0.01MPa 時,一般是選擇先導式結構類型。高壓電磁閥基本是先導式結構。
working pressure: refers to the solenoid valve is closed, valve pipe valve back pressure minus the front line pressure obtained by the numerical; work pressure force in 0-0.1MPa or vacuum, general small caliber DN15 following selection of direct-acting type,large diameter above DN15 choose the distribution of direct drive type.When the working pressure not less than 0.01MPa, is usually choose pilot structure type. High pressure solenoid is a basic pilot structure.
六、根據工作要求選用合理線圈
according to the requirements of a reasonable selection of coil
1、高頻率開關工作場所選用高頻率線圈,能夠承受連續開關(訂貨時可注明)
a high frequency switch using high frequency line, workplace, able to withstand continuous switch(order can be annotated when).
2、長時間工作需要選用低發熱長時間使用線圈,防爆場所選用防爆線圈(訂貨時可注明)。
long time work need to use low heat, long term use, explosion-proof explosion-proof line, place (order can be annotated when).
3、高溫環境需要選用耐溫線圈加散熱器或線圈短時間通電的方式(如自保持式電磁閥)。
high temperature environment requires the selection of resistant Wen Xianquan and radiator or line for short time conduction mode(such as a self-holding electromagnetic valve).
4、工作在震動場所需要選用抗震動線圈(訂貨時可注明),
work in shock sites need to use seismic line,(order can be annotated when).
七、根據環境要求選擇輔助功能∶防爆,手動,防水霧,潛水,定時,帶信號
according to the environmental requirements for selection of adjuvant function: manual, explosion-proof, waterproof fog, diving, timing, signal
1、易燃環境∶須選用相應等級的防爆電磁閥(dIIBT4,dIICT5)。
flammable environment; we choose the appropriate level of explosion-proof electromagnetic valve(dIIBT4,dIICT5)
2、當需要不用電對電磁閥進行現場人工操作時,可選擇帶手動功能電磁閥。
when the need for electricity the electromagnetic valve of manual operation on site, with a choice of manual function electromagnetic valve.
3、露天安裝或粉塵多場合應選用防水,防塵品種(防護等級在IP54以上),用于噴泉或水下管路則須采用潛水電磁閥(防護等級在IP68)。
outdoor installation or dust should be used more occasions waterproof,dust-proof varieties(protection level in IP54 above), used for fountain or water lines adopt submersible electromagnetic valve(protection level in IP68).
4、需要定時開關的可以選擇定時器裝配在電磁閥上。
need timing switch can select timer assembly on the electromagnetic valve.
5、需要對管路介質通斷進行監控的,則選用帶信號反饋功能的電磁閥(溫度<100℃。)
the need for the medium in the pipe on-off control, the selection of signal feedback function of the electromagnetic valve(temperature less than 100 degrees celsius.)

CRAIG進口電磁閥閥體、密封件材料介質參考選型表:

  鑄鋼 不銹鋼 塑料 丁腈橡膠NBR 三元乙丙EPDM 氟橡膠VITON 特氟隆PTFE
空氣
天然氣  
氧氣  
氫氣      
城市煤氣        
工業煤氣        
氮氣        
精制石油      
普通水
水蒸氣   ×
飲用水    
海水  
工業廢水          
汽油     ×
煤油 ×
柴油 ×   ×
牛奶
 
酒精   ×  
乙炔   ×
乙醇   ×
丙酮   × ×
        ×    
甲苯     ×
二甲苯     ×
丙烷     ×
甲烷   ×
二氧化硫      
氫氧化鈉<20%     ×  
硝酸<10%        
硫酸<20%            
鹽酸<10%              
醋酸   ×

√表示常規下可用,×表示不適用,空白表示資料不足暫未確認
常用密封件材料概述:
三元乙丙橡膠 EPDM 耐臭氧,耐中溫和低溫。耐一般性腐蝕性化學品。不耐油和油脂-30~130℃。
氟橡膠 VITON 抵抗化學品的能力是橡膠中蕞好的-10~150℃。
丁腈橡膠 NBR 耐油和石油,但不能抵抗氧化劑 -10~90℃。
聚四氟乙烯 PTEE 能抵抗大多數化學品,但不能抵抗液態類含鈉或含氧的化合物 -20~180℃

安裝與維護 Installation And Maintenance

1、安裝前應仔細核對閱讀產品使用說明書,檢查產品是否符合使用要求,熟悉安裝要點,做好準備工作。
The installation should be carefully checked before read product manual, check whether the product is with the requirements of the use of. Familiar with the installation points, ready to work.
2、核對品牌參數是否為所選用的參數,是否與使用說明書相符。
Check whether the brand parameters selected parameters,and instructions for use.
3、安裝之前用管路的使用壓力對管路沖洗,把管路中的金屬粉末、殘留密封材料、焊接后的氧化皮等清除。
Prior to the installation of pipes the pressure on the pipeline flush, the pipeline of the metal powder, residual sealing materials, welding after oxidative skin cleared.
4、注意介質的清潔度,如果流通的介質中有雜質,電磁閥進口端前須安裝密度30-100目過濾網或過濾閥。
Pay attention to medium cleanness, if the circulation medium impurity, electromagnetic inlet end of the valve be installed before the density 30-100 heads filter or fitervalve.
5、電磁閥應水平安裝,線圈在上面,如需垂直安裝,需提出。閥不宜裝在低凹處,如裝在容器底部的排出管道中,應裝在容器底部稍上的位置。
The solenoid valve should be installed horizontally the coil. The valve should not be installed in the valley, such as mounted on the bottom of the container discharge pipe should be installed at the bottom of the container, a position.
6、如果介質會起水擊現象,要注意電磁閥的選用或采取相應的防范措施。
If the medium will have the phenomenon of water hammer, attention should be paid to electromagnetic valve or take corresponding preventive measures.
7、電磁閥一般是定向的,不可裝反,通常在閥體上用"箭頭"指出介質流動方向,安裝時要依照"箭頭"指示方向安裝。
The solenoid valve is generally directed, not anti-loaded, usually in the valve body with the" arrow"pointed out that the medium flow direction should be installed in accordance with the "arrow" indicates the direction of the installation.
8、螺紋連接時應注意,接管螺紋應保持有效長度內,并在端部半螺紋距處用銼刀倒角,自端部起兩牙處開始纏繞密封帶,不然過量密封帶或粘結將進入電磁閥內,而發生妨礙電磁閥正常動作的事故。
Thread connection should be paid attention to when, over the thread should remain effective length,and in the end half pitch of thread wit file chamfer, since the end of two teeth at the start winding sealing tape, or excess sealing tape or adhesive will nter the solenoid valye, solenoid valve and hinder the normal action of the accident.
9、防爆電磁閥現場安裝須按照危險場所"電氣安全規程"中有關規定進行。
Explosion-proof electromagnetic valve installation be in accordance with the "electrical safety regulations"in the relevant provisions.
10、非電氣人員不得拆卸電磁閥電氣部件。
Non electrical personnel shall not remove solenoid valve electrical components.

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