品牌：RETZ瑞茨/我們一直致力于流體控制領(lǐng)域的持續(xù)創(chuàng)新，始于2005……進(jìn)口超低溫電磁閥的閥桿為加長型,本產(chǎn)品通常用于LNG、液氧、乙醛、液氮、液氨、石油液化氣、天然氣、濾油機(jī)等易燃易爆等管路作自動(dòng)化控制The valve stem of RETZ ultra-low temperature solenoid valve is an extended type. This product is usually used for automatic control of flammable and explosive pipelines such as LNG, liquid oxygen, acetaldehyde, liquid nitrogen, liquid ammonia, liquefied petroleum gas, natural gas, oil filters, etc.

液體、氣體、油品可混合使用，提高閥的使用范圍Liquid, gas, and oil can be mixed for use, increasing the range of use of the valve

進(jìn)口超低溫電磁閥工作原理--

常閉式：當(dāng)線圈通電時(shí)，先導(dǎo)閥芯吸合，先導(dǎo)孔打開，閥上腔卸壓，活塞靠下腔介質(zhì)壓力推動(dòng)，電磁閥打開。當(dāng)線圈斷電時(shí)，先導(dǎo)閥芯靠彈簧復(fù)位，先導(dǎo)孔關(guān)閉，閥上腔由活塞節(jié)流孔增壓和復(fù)位彈簧的推力，電磁閥關(guān)閉。

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

常開式：當(dāng)線圈通電時(shí)，先導(dǎo)閥芯靠彈簧復(fù)位，先導(dǎo)孔關(guān)閉，閥上腔由活塞節(jié)流孔增壓和復(fù)位彈簧的推力，電磁閥關(guān)閉。當(dāng)線圈斷電時(shí)，先導(dǎo)閥芯靠彈簧復(fù)位，先導(dǎo)孔打開，閥上腔卸壓，活塞靠下腔介質(zhì)壓力推動(dòng)，電磁閥打開。

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

進(jìn)口超低溫電磁閥結(jié)構(gòu)特點(diǎn)--

動(dòng)作靈敏度，啟閉迅速

活塞結(jié)構(gòu)、性能穩(wěn)定；

專制線圈、不易燒毀。

閥體采用熱鍛成型工藝、外型美觀;

耐低溫密封材料，密封性好；

塑封線圈，提高閥的可靠性并能防水、防潮;

進(jìn)口超低溫電磁閥選型參數(shù)--

產(chǎn)品規(guī)格：1/4-2"

閥體材質(zhì)：不銹鋼

介質(zhì)溫度：-200~+80℃

適用壓力：0-100MPa

環(huán)境溫度：－20～＋50℃

防護(hù)性能：防水、防爆（DⅡCT5、ExdⅡCT5、ExmbⅡCT4、ExdⅡCT4）、防腐。

防護(hù)等級：IP67、IP65

閥芯材質(zhì): 均為不銹鋼

控制方式：常開、常閉

電源電壓：DC24~127V；AC36~380V

連接方式：內(nèi)螺紋、法蘭

泄 漏 量：零

注：出口端壓力大于進(jìn)口端壓力，介質(zhì)會反向?qū)ā？砂惭b止回閥。

適用介質(zhì)：粘 度：≤21m㎡/s，LNG、液化氣、液氨、液氮、液氧、天然氣、丙烷、乙稀、甲烷、氮?dú)狻⒍趸?、氟利?/span>