進口低溫電磁閥 美國RETZ瑞茨品牌
品牌：retz瑞茨/我們一直致力于流體控制領域的持續創新，始于2005……進口超低溫電磁閥的閥桿為加長型,本產品通常用于lng、液氧、乙醛、液氮、液氨、石油液化氣、天然氣、濾油機等易燃易爆等管路作自動化控制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
進口超低溫電磁閥工作原理--
常閉式：當線圈通電時，先導閥芯吸合，先導孔打開，閥上腔卸壓，活塞靠下腔介質壓力推動，電磁閥打開。當線圈斷電時，先導閥芯靠彈簧復位，先導孔關閉，閥上腔由活塞節流孔增壓和復位彈簧的推力，電磁閥關閉。
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：當線圈通電時，先導閥芯靠彈簧復位，先導孔關閉，閥上腔由活塞節流孔增壓和復位彈簧的推力，電磁閥關閉。當線圈斷電時，先導閥芯靠彈簧復位，先導孔打開，閥上腔卸壓，活塞靠下腔介質壓力推動，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.
進口超低溫電磁閥結構特點--
動作靈敏度，啟閉迅速
活塞結構、性能穩定；
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;
進口超低溫電磁閥選型參數--
產品規格：1/4-2"
閥體材質：不銹鋼
介質溫度：-200~+80℃
適用壓力：0-100mpa
環境溫度：－20～＋50℃
防護性能：防水、防爆（dⅱct5、exdⅱct5、exmbⅱct4、exdⅱct4）、防腐。
防護等級：ip67、ip65
閥芯材質: 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：內螺紋、法蘭
泄 漏 量：零
注：出口端壓力大于進口端壓力，介質會反向導通?？砂惭b止回閥。
適用介質：粘 度：≤21m㎡/s，lng、液化氣、液氨、液氮、液氧、天然氣、丙烷、乙稀、甲烷、氮氣、二氧化碳、氟利昂
