进口止回功能电磁阀

Imported back function solenoid valve

→产品特点 Product features

美国VETI威迪品牌进口止回功能电磁阀能阻止出口端的介质反向流通；独特设计、节省空间；活塞结构、密封性好；专制线圈、不易烧毁。用于液体和气体管路的开关控制，是两位DO控制。一般用于小型管道的控制。

USA（veti）and export function of the solenoid valve can prevent the export side of the medium reverse circulation;the unique design,save space;piston structure,good sealing;autocratic coil,not easy to burn.For liquid and gas pipeline switch control,is the two DO control.General control for small pipe.

→主要技术参数 Main technical parameters

原理结构：分布活塞式、一步活塞式

通径范围：DN3-DN200。

控制方式：常开、常闭。

电源电压：AC380V、AC220V、AC127V、AC36V、AC24V、DC220V、DC36V、DC24V、DC12V。

阀体材质：铸钢、不锈钢（304，316，316L）。

适用介质：水、气、油、腐蚀流体等。

压力范围：0.1-6.4MPa。

温度范围：-10℃ 100℃。

介质粘度：小于50C 5l《大于时需定制)

防护性能：防尘、防水、防爆根据工况选择。

接线方式：接线座式、引线式、插头式。

连接方式：法兰焊接、内螺纹(外螺纹和特殊接口可定做或加转接头)。

Principle structure:distribution of the piston,piston type.

The size range:DN3-DN200.

Control mode:normally open,normally closed,sell-retaining.

Thepower supply voltage:AC380V,AC220V,AC127V,AC36V,AC24V,DC220V,DC36V,DC24V,DC12V.

The valve body material:WCB, Cast steel/Stainless steel（304,316,316L）.

Applicable medium:water,oil,gas,corrosive fluid.

Pressurerange:0.1-6.4MPa.

Temperature range:-10℃ 100℃.

The viscosity of the medium:less than 50C St(more than required custom).

The protective performance of dustproof,waterproof,explosion-proof.According to the working condition.

The connection:connection seat type:lead,plug type

The connection:flange,welding.threaded〔external threads and a special interface can be customized or adapter)

→工作原理 Working principle

常闭式：当线圈通电时，先导阀芯吸合，先导孔打开，阀上腔卸压，活塞靠下腔介质压力推动，电磁阀打开；当线圈断电时，先导阀芯靠弹簧复位，先导孔关闭，阀上腔由活塞节流孔增压和复位弹簧的推力，电磁阀关闭。

Normally closed:when the coil is energized,the pilot spool pull,open the pilot hole,cavity pressure relief valve,the piston on the lower chamber medium pressure to promote,the electromagnetic valve is opened;when the coil power, the pilot valve by the reset spring,the pilot hole is closed,valve chamber by the piston orifice booster and a reset spring thrust,the electromagnetic valve closed.

常开式：当线圈通电时，先导孔关闭，阀上腔由活塞节流孔增压和复位弹簧的推力，电磁阀关闭。当线圈断电时，先导阀芯靠弹簧复位，先导孔打开，阀上腔卸压，活塞靠下腔介质压力推动，电磁阀打开。

Normally open: when the coil is energized,the pilot hole is closed,the valve is closed by the piston throttle orifice and the thrust of the spring. When the coil power,the pilot valve by the spring reset,the pilot hole to open,the valve on the chamber pressure,the piston is driven by the pressure of the cavity media,solenoid valve open.

→应用范围 Scope of application

军工、航天、船舶重工、核工业、石化、电力、化学、轻工、机械、科研、给排水等领域，最适用于阀出口会产生比进口压力大、不需反向流通的管道系统。

the mi,itary,aerospace,shipbuilding,nuclear industry,petrochemical,power,chemical,lighlindustry,machinery,scientific research,such as water supply and drainage areas,the most applicable to the valve outlet will produce than the inlet pressure,without reverse circulation pipeline system.

→注解 Note

流体中若含有杂质，电磁阀进端必须安装过滤器。

If the fluid contains impurities, the solenoid valve into the end must be installed in the filter.

美国VETI威迪品牌阀门国际有限公司.上海波昂授权定点公司。