原文：
      一.安全性：不注意安全即会产生灾难！ 1.腐蚀性介质：宜选用塑料王电磁阀和全不锈钢；对于强腐蚀的介质必须选用隔离膜片式。例CD-F.Z3CF。中性介质，也宜选用铜合金为阀壳材料的电磁阀，否则，阀壳中常有锈屑脱落，尤其是动作不频繁的场合。氨用阀则不能采用铜材。 2.爆炸性环境：必须选用相应防爆等级产品，露天安装或粉尘多场合应选用防水，防尘品种。 3.电磁阀公称压力应超过管内最高工作压力。

      二.适用性：不适用等于花钱买费物，还要添麻烦！

     1、介质特性 1.1质气，液态或混合状态分别选用不同品种的电磁阀，例ZQDF用于空气，ZQDF—Y用于液体，ZQDF—2（或-3）用于蒸汽，否则易引起误动作。ZDF系列多功能电磁阀则可通通于气.液体。最好订时告明介质状态，安装用户就不必再调式。 1.2介质温度不同规格产品，否则线圈会烧掉，密封件老化，严重影响寿命命。 1.3介质粘度，通常在50cSt以下。若超过此值，通径大于15mm用ZDF系列多功能电磁阀作特殊订货。通径小于15mm订高粘度电磁阀。 1.4介质清洁度不高时都应在电磁阀前配装反冲过滤阀，安全阀压力低时尚可选用直动膜片式电磁阀作例如CD—P。 1.5介质若是定向流通，且不允许倒流ZDF—N和ZQDF—N单需用双向流通，请作特殊要求提出。 1.6介质温度应选在电磁阀允许范围之内。

      2、管道参数 2.1根据介质流向要求及管道连接方式选择阀门通口及型号。例如，用于一条管道向两条管道切换的，小通径的选CA5和Z3F，呼吸阀中等或大通径请选ZDF—Z1/2。又如控制两条管道汇流的，请选ZDF—Z2/1等。 2.2根据流量和阀门Kv值选定公称通径，也可选同管道内径。请注意有的厂家未标有Kv值，往往阀孔尺寸小于接口管径，切不可贪图价低而误事。 2.3工作压差最低工作压差在0.04Mpa以上是可选用间接先导式；最低工作压差接近或小于零的必须选用直动式或分步直接式。

        3、环境条件 3.1环境的最高和最低温度应选在允许范围之内，如有超差需作特殊订货提出。 3.2环境中相对湿度高及有水滴雨淋等场合，应选防水电磁阀。 3.3环境中经常有振动，颠簸和冲击等场合应选特殊品种，例如船用电磁阀。 3.4在有腐蚀性或爆炸性环境中的使用应优先根据安全性要求选用耐发蚀。 3.5环境空间若受限制，请选用多功能电磁阀，平衡阀因其省去了旁路及三只手动阀且便于在线维修。

       4、电源条件 4.1根据供电电源种类，分别选用交流和直流电磁阀。一般来说交流电源取用方便。 4.2电压规格用尽量优先选用AC220V.DC24V。 4.3电源电压波动通常交流选用+%10%.-15%，减压阀直流允许±%10左右，如若超差，须采取稳压措施或提出特殊订货要求。 4.4应根据电源容量选择额定电流和消耗功率。须注意交流起动时VA值较高，在容量不足时应优先选用间接导式电磁阀。 5.控制精度 5.1普通电磁阀只有开、关两个位置，在控制精度要求高和参数要求平稳时请选用多位电磁阀；Z3CF三位常开电磁阀，具有微启，全开和关闭三种流量；ZDF—Z1/1组合多功能电磁阀具有全开、大开、小开、全开四种流量。 5.2动作时间：指电信号接通或切断至主阀动作完成时间，只有本公司专利产品多功能电磁阀可对开启和关闭时间分别调节，不仅可满足控制精度要求，还可防止水锤破坏。 5.3泄漏量样本上给出的泄漏量数值为常用经济等级，若嫌偏高，请作特殊订货。

      三、可靠性：不可靠将会损害整个系统！ 1、工作寿命，此项不列入出厂试验项目，截止阀属于型式试验项目。为确保质量应选正规厂家的名牌产品。 2、工作制式：分长期工作制，反复短时工作制和短时工作制三种。本公司常规产品均为长期工作制，即线圈允许长期通电工作。对于长时间阀门开通只有短时关闭的情况，则宜选用常开电磁阀。用在短时工作制而批量又很大时，可作特殊订货以降低功耗。 3、工作频率：动作频率要求高时，结构应优选直动式电磁阀，电源听优选交流。 4、动作可靠性：严格地来说此项试验尚未正式列入我国电磁阀专业标准，为确保质量应选正规厂家的名牌产品。有些场合动作次数并不多，但对可靠性要求却很高，如消防、紧急保护等，切不可掉以轻心。特别重要的，还应采取两只连用双保险。 四、经济性：不经济就是对资金，精力乃至生命的浪费 它选用的尺度之一，但必须是在安全、适用、可靠的基础上的经济。经济性不单是产品的售价，更要优先考虑其功能和质量以及安装维修及其它附件所需用费用。更重要的是，一只电磁阀在整个自控系统中在整个自控系统中乃至生产线中所占成本微乎其微，如果贪图小便宜而错选早造成损害群是巨大的。 总之，经济性不单指产品价格，而是产品的性能价格比综合费用价格比。

“ Some use of the electromagnetic valve tips ”是由中国气动阀门网提供的阀门行业新闻，译文仅供参考。另外，中国气动阀门网还提供相关产品搜索： 气动隔膜阀、 气动调节控制阀、 气动执行器与附件、 更多气动阀门产品、 气动阀门价格、等。

译文：
        1. Security: pay no attention to security will lead to disaster! 1. Corrosive medium: better to use plastic and stainless steel solenoid valve king; for highly corrosive media must use isolation diaphragm. Case of CD-F.Z3CF. Neutral medium, it should use copper alloy shell material for the valve solenoid valve, otherwise the valve shell debris are often rust off, especially actions do not frequent occasion. Ammonia can not be used with the valve copper. 2. Explosive environment: to choose the appropriate level of explosion-proof products, open-air installation or dust should be used more occasions, waterproof, dust-proof varieties. 3. Solenoid valve nominal pressure Globe Valvesshould exceed the maximum working pressure tube. 2. Applicability: Not applicable fee equal to money to buy things, but also trouble! 1, media features 1.1 The quality of gas, liquid or mixed states, which are used in different varieties of solenoid valves, patients ZQDF for air, ZQDF-Y for liquid, ZQDF-2 (or -3) for the steam, otherwise easily lead to malfunction. ZDF series multi-function solenoid valve may be them altogether in the air. Liquid. Report set out the best when the state media, the user will not have to install the debugging. 1.2 Medium temperature products of Motorized Valve Actuatorsdifferent specifications, otherwise the coil will burn, seals aging, seriously affect the life of life. 1.3 medium viscosity, usually 50cSt the following. If more than this value, greater than 15mm diameter with ZDF series multi-function valve for special order. Diameter less than 15mm high viscosity valve set. 1.4 medium cleanliness is not high when the electromagnetic valve should be installed before the recoil filter with valve, low pressure can be used direct-acting fashion Diaphragm solenoid valve for example CD-P. 1.5 If the directional flow of media, and are not allowed back ZDF-N and ZQDF-N single Xu Yong-way flow, please make a special request. 1.6 medium temperature should be chosen within the allowable range of electromagnetic valve. 2, pipe parameters 2.1 under medium flow pipe connection requirements and select the valve openings and model. For example, for a pipeline to switch to the two pipelines, with a small diameter of the election CA5 and Z3F, medium or large diameter, please select ZDF-Z1 / 2. Another example is control of the convergence of the two channels, select ZDF-Z2 / 1 and so on. 2.2 Kv value according to the selected flow and valve nominal diameter, also optional with the pipeline diameter. Please note that some manufacturers are not marked with the Kv value, often less than the interface, valve hole size diameter, must not seek the lowest and makes a botch. 2.3 Working pressure above the minimum working pressure is to be used in 0.04Mpa indirect Pilot; minimum working pressure close to or less than zero must be used direct-acting type or sub-step direct style. 3, environmental conditions 3.1 environment, the maximum and minimum temperature should be selected within the allowable range, if tolerance required for special orders made. 3.2 The environment of high relative humidity and a drop of water and rain and so on, should be selected water solenoid valve. 3.3 environment, often vibration, bumps and shocks should choose special varieties of occasions, such as marine solenoid valve. 3.4 in a corrosive or explosive Multi-functional Water Pump Control Valvesenvironments using security requirements should be given priority selection under the anti-hair loss. If the restricted environmental space 3.5, please use the multifunction valve because it eliminates the need for bypass and the three manual valves and easy to line maintenance. 4, power supply conditions 4.1 According to the power supply types were selected to AC and DC solenoid valves. Generally speaking, convenient access to AC power. 4.2 voltage specifications used as preferred AC220V.DC24V. 4.3 AC power supply voltage fluctuations are usually used +% 10% .- 15%, DC to allow ±% 10 or so, should the ultra-poor, to take measures or make a special order regulator requirements. 4.4 The selection should be based on Regulatorsthe rated power capacity of current and power consumption. VA should be noted that when the exchange value of the higher start, lack of capacity should be preferred in the indirect electromagnetic valve guide. 5. Control accuracy 5.1 General electromagnetic valve only opening and closing two locations, high precision in the control and parameters for a smooth, please choose a number of solenoid valves; Z3CF three normally open solenoid valve, with Weiqi, fully open and close the three kinds of traffic; ZDF -Z1 / 1 combined with multi-function valve fully open, wide open, small open, open all four types of traffic. 5.2 Action Time: means to connect or disconnect signal to the main valve action completion time, only the company's patented multi-function valve can open and close time were adjusted to meet the control of not only precision, but also to prevent water hammer damage. 5.3 leakage leakage given the sample values for common economic level, if too high, please make a special order. Third, reliability: unreliable and will damage the whole system! 1, working life, this factory is not included in the pilot project, are type of pilot projects. To ensure the quality brand-name manufacturers should be regular elections. 2, the working system: sub-system of long-term work, repeated short-time work system and work system of three short. The company's conventional products are long-term work system, that is, theWater Power Control Valves work coil to allow long-term power. For a long time only a short time opened the valve closed, then it should use normal open solenoid valve. Short-term work system used in large quantities when it can be used as a special order to reduce power consumption. 3, the working frequency: frequency of demanding action, the structure should be optimized direct-acting solenoid valve, the power to listen to the exchange preferred. 4, operating reliability: Strictly speaking, this test has not yet formally included in the professional standards of Electromagnetic valve, in order to ensure quality brand-name manufacturers should be regular elections. Not a lot of movement on some occasions, but has very high reliability requirements, such as fire, emergency protection, must not be taken lightly. Particularly important, should also take two Lianyong double insurance. Fourth, economy: not economic is on the money, energy and even the waste of life Choose one of its scale, but must be safe, applicable and reliable on the basis of the economy. Economy is not only the prices of products, but also to give priority to their functions and quality of installation and maintenance, and other accessories required for the costs. More importantly, a solenoid valve in the automatic control system in the whole production line automatic control system and even the share of the cost is minimal, if cheap and wrong to take any early damage group selection is huge. In short, the economy not just price, product performance and low cost but comprehensive cost-price ratio.

原文来源：http://www.1qidongfamen.com/

2010-07-30 08:52

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