中文：

近年来随着机电一体化的发展，电动阀门这一重要的机械产品迎来了前所未有的市场。电动阀门比传统的阀门(手动阀门、气动阀门)在工作上更加节源、安全可靠。在环保和安全的呼声越来越高的今日，电动阀门是不可或缺的。巨大的市场需求对电动阀门的要求也越来越高。

电动阀门的应用领域广阔，涉及石油、化工、电力、核能、冶金、船舶、轻工、食品、市政等方面。就产品本身而言，电动阀门具备装配容易、故障率低，以及符合业界自动化需求的优点，是业者较划算的选择。因为使用一般传统气动阀，免不了要有配管、电磁阀及压缩机等才能成功。而电动阀门是以马达驱动，安装简易省事，且电动阀安装配合工厂原有的自控线路即可，可节省其他成本支出。此外，以马达驱动方式开闭较平顺，无瞬间冲力过大的缺点，故障率可大幅降低。

　石化行业主要采用API标准的闸阀、截止阀和止回阀;电力部门主要采用电站用高温压闸阀、截止阀、止回阀和安全阀及一部分给排水阀的低压蝶阀、闸阀;化工行业主要采用不锈钢闸阀、截止阀、止回阀。

　 冶金行业主要采用低压大口径蝶阀、氧气截止阀和氧气球阀;城市建设部门主要采用低压阀，如城市自来水管道主要采用的大口径闸阀，楼寓建设主要采用的中线蝶阀，城市供热主要采用的金属密封蝶阀等;输油管线主要采用平板闸阀和球阀;制药行业主要采用不锈钢球阀;食品行业主要采用不锈钢球阀等。

电动阀门是阀门行业的新品种，因此电动阀门的市场前景是非常广阔的，铸造企业应多了解这个行业，为这个行业提供铸造件，以电动阀门这个新兴的行业来带动铸造行业发展，以获得新的发展动力。

英文：

In recent years,as the development of mechatronics,electric valvewhich is one of the most importantmechanical productsushered in ahitherto unknownmarket.Electric valvethan conventionalvalves(manual valves,pneumatic valves)at workmoresource saving,safe and reliable.In environmental protection andsafetyis more and more hightoday,electric valveis indispensable.The huge market demandrequirementsof electric valveis also more and morehigh.

The application fieldof electric valveis broad,involved in petroleum,chemical,electric power,nuclear power,metallurgy,shipbuilding,light industry,food,municipaletc..On the product itself,the electric valvefitted with easy,low failure rate,and theadvantage of meetingof industry automation needs,is the industry more cost-effective choice.Because the use ofconventionalpneumatic valve,inevitably a piping,solenoid valve and the compressorcan be successful.While the electric valve is amotor-driven,easyinstall,and electric valves installed with the originalfactorylines can becontrolled,can save other costs.In addition,the motor drive open and closemore smoothly,without an excessive momentumshortcomings,failures can be substantially reduced rate.

Petrochemicalindustry mainly usesthe API standardgate valve,globe valve and check valve;power sectormainly adoptshigh pressurepower stationgate valve,globe valve,check valve and safety valveanda part ofwater supply and drainagevalve with low pressurebutterfly valve,gate valve;chemicalindustry mainly usesstainless steel gate valve,globe valve,check valve.

Metallurgicalindustry mainly useslow-voltage large-diameterbutterfly valve,oxygen valve and the oxygenvalve;urban construction departmentsmainly adoptslow pressure valve,such as largediameter gateof city tap water pipeis mainlyadopted,the center line butterfly valvemainly bybuildingconstruction,urban heatingmainly adopts themetalsealing butterfly valve;pipelinemainly uses theflat gate valveandball valve;the pharmaceutical industry mainly usesstainless steel ball valve;the foodindustry mainly uses stainless steelball valve.

The electric valve is anew varietyof the valve industry,so theelectric valvemarket prospectis very broad,foundryenterprises should be moreunderstanding of the industry,providethe castingforthe industry,withthe electric valve in thenew industryto drive thedevelopment offoundryindustry,in order to obtain newdevelopment power.