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……進口防爆電磁閥線圈必須采用相等等級的防爆接線盒做過渡,線圈引出導線長度必須大于1m,防爆線圈與電磁閥配套使用時，介質溫度不得超過60℃，閥體外露表面最高溫度不大于130℃,本產品廣泛應用在制冷劑、油路管道、燃氣管網、工業窯爐、城市煤氣、液化石油氣、天然氣、化學等爆炸危險場所使The RETZ explosion-proof solenoid valve coil must use an explosion-proof junction box of equal grade as a transition, and the length of the coil lead wire must be greater than 1m. When the explosion-proof coil is used in conjunction with the solenoid valve, the medium temperature should not exceed 60 ℃, and the maximum temperature on the exposed surface of the valve body should not exceed 130 ℃. This product is widely used in explosive hazardous areas such as refrigerants, oil pipelines, gas pipelines, industrial kilns, urban gas, liquefied petroleum gas, natural gas, and chemistry

進口防爆電磁閥工作原理--Working principle of imported explosion-proof solenoid valve

常閉：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：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 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.

進口防爆電磁閥結構特點--

采用膜片式或活塞式結構，動作靈敏

結構簡單，體積小，封密性能好

配套線圈，不易燒毀,性能穩定；

進口防爆電磁閥選型參數--

產品規格：1/2-8"

閥體材質：不銹鋼 、鑄鋼

介質溫度： -196℃ ~+350 ℃ 

適用壓力：0~1.6MPa

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

接線方式：接線座式、引線式、插頭式

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

適用介質：易燃易爆液體或氣體，小于50CSt （大于50時需定制）

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
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