进口低温防爆电磁阀用心制造成就品质德国洛克造

一、进口低温防爆电磁阀结构特点：

进口低温电磁阀具有,寿命长：此阀结构简单，故障少，维修方便，阀芯由特种不锈钢制成，耐磨性好，耐超低温。本产品采用不锈钢阀芯，在长时间不动作情况下启动阀门，动作迅速，快速切断；线圈长时间通电，发热量低，不会烧毁，功耗底，节能；零压启动，零泄漏。

The imported low temperature solenoid valve has long service life: the valve has simple structure, few faults and convenient maintenance. The valve core is made of special stainless steel, with good wear resistance and ultra-low temperature resistance. The product adopts stainless steel valve core, which can start the valve without action for a long time, and cut off quickly; the coil is electrified for a long time, with low calorific value, no burning, low power consumption and energy saving; zero pressure starting and zero leakage.

二、进口低温防爆电磁阀作原理：

常闭：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，阀腔由活塞节流孔增压和复位弹簧的推力，电磁阀关闭。

常开：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 closed: when the coil is energized, the pilot valve core is closed, the pilot hole is opened, the upper chamber of the valve is depressurized, the piston is pushed by the medium pressure of the lower chamber, and the solenoid valve is opened; when the coil is powered off, the pilot valve core is reset by the spring, the pilot hole is closed, the valve chamber is pressurized by the piston orifice and the thrust of the reset spring, and the solenoid valve is closed.

Normally open: when the coil is energized, the pilot hole is closed, the upper chamber of the valve is pressurized by the piston orifice and the thrust of the return spring, and the solenoid valve is closed. When the coil is powered off, the pilot valve core is reset by the spring, the pilot hole is opened, the pressure in the upper chamber of the valve is released, the piston is pushed by the medium pressure in the lower chamber, and the solenoid valve is opened.

三、进口低温防爆电磁阀产品简介：

德国《LOCKE》洛克进口低温防爆电磁阀是指接线端子到达电气防爆要求，防止可燃易爆气体发生爆炸，选取阀芯由经低温深冷处理不锈钢制成，密封件采用特种耐低温材料，最低温度可达-196度，有线圈驱动阀门开关，可实现对低温介质的远程自动化控制的阀门，适用于对液氮，液氨，液氧，液氩，液化天然气LNG及低温制冷剂的介质的开启和关闭。

The low temperature explosion-proof solenoid valve imported by Locke in Germany refers to the valve whose terminal meets the requirements of electrical explosion-proof to prevent the explosion of combustible and explosive gases. The selected valve core is made of low-temperature cryogenic treated stainless steel, and the seal is made of special low-temperature resistant material. The minimum temperature can reach - 196 degrees. The valve has coil driven valve switch, which can realize remote automatic control of low-temperature medium It is used for opening and closing the medium of liquid nitrogen, liquid ammonia, liquid oxygen, liquid argon, liquefied natural gas, LNG and cryogenic refrigerant.

四、进口低温防爆电磁阀规格参数：

1、阀体材质：不锈钢

2、公称通径：DN3-200mm

3、压力范围：0-32Mpa

4、流体温度：-196- +120℃

5、适用介质：液氮、液氨、制冷剂等超低温液体或气体

6、连接方式：法兰、螺纹等

7、电压偏差：允许波动±10%

8、阀体材料：不锈钢

9、密封    ：金属硬密封

10、环境温度：-20~60℃

11、电气连接：接线盒电缆插座，防护等级IP65

12、使用电压：AC220V 50Hz/60Hz、DC24V·其余根据要求

13、可根据工况配置防爆装置，  用于易燃易爆场合，防爆等级:ExdIIBT4

1. Valve body material: stainless steel

2. Nominal diameter: dn3-200 mm

3. Pressure range: 0-32mpa

4. Fluid temperature: - 196 - + 120 ℃

5. Applicable medium: liquid nitrogen, liquid ammonia, refrigerant and other ultra-low temperature liquid or gas

6. Connection mode: flange, thread, etc

7. Voltage deviation: allowable fluctuation ± 10%

8. Valve body material: stainless steel

9. Seal: metal hard seal

10. Ambient temperature: - 20 ~ 60 ℃

11. Electrical connection: junction box, cable socket, protection grade IP65

12. Voltage: AC220V, 50Hz / 60Hz, DC24 V · others as required

13. The explosion-proof device can be configured according to the working conditions, which is used in inflammable and explosive situations. The explosion-proof grade is ExdIIBT4