進(jìn)口制冷劑電磁閥 美國(guó)RETZ瑞茨

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)口制冷電磁閥適用于氟利昂、制冷劑、水、冷凍液、氣為工作介質(zhì)，實(shí)現(xiàn)通斷自動(dòng)化，具有啟閥迅速，性能穩(wěn)定，使用方便，節(jié)能好，壽命長(zhǎng)等優(yōu)點(diǎn)retz refrigeration solenoid valve is suitable for working media such as freon, refrigerant, water, refrigerant, and gas, achieving automatic on-off. it has the advantages of quick valve opening, stable performance, convenient use, good energy conservation, and long service life
進(jìn)口制冷劑電磁閥控制原理--
常閉式：normally closed
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：normally open
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when the coil is energized, 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. 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)口制冷劑電磁閥結(jié)構(gòu)特點(diǎn)--
先導(dǎo)式,零壓差啟動(dòng)，動(dòng)作靈敏度高;
獨(dú)特設(shè)計(jì)、外觀精美、密封性好、開關(guān)迅速；
配套線圈、不易燒毀，線圈耐溫180℃，可持續(xù)通電
進(jìn)口制冷劑電磁閥選型參數(shù)--
閥體材質(zhì)：不銹銹304或316
閥門規(guī)格：g1/4-g2" 或f1/2-f4"
工作壓力：0~100bar
介質(zhì)溫度：-40~+80℃
環(huán)境溫度：-40~+50℃
密封材質(zhì)：ptfe
標(biāo)準(zhǔn)電壓：ac：220v（50/60hz)/dc:24v
防護(hù)性能：防水、防爆（dⅱct5、exdⅱct5、exmbⅱct4、exdⅱct4）、防腐。
防護(hù)等級(jí)：ip67、ip65
適用介質(zhì)：制冷液體或氣體、氟利昂、氨氣，小于50cst （大于50時(shí)需定制）
泄 漏 量： 零
注：出口端壓力大于進(jìn)口端壓力，介質(zhì)會(huì)反向?qū)??？砂惭b止回閥