進口低溫電磁閥-進口（制冷劑、液氮、液氧、二氧化碳）
德國威樂WILO品牌：進口低溫電磁閥應用范圍：
它廣泛應用于航天、船舶重工、化工、冷凍設備、食品醫設備等制冷管道系統中。
產品特點：
閥芯均為不銹鋼活塞式，活塞環用特殊耐低溫、耐磨材料制作；活塞與金屬閥腔不產生直接摩擦，閥體安裝方向無限制；特制線圈，不易燒毀；長時間停止動作重新啟動，作同樣靈敏。
主要技術參數：
產品規格： | DN0.5～DN500 |
閥體材質： | 不銹鋼 |
適用介質： | 制冷劑、液氮、液氧、液氬、二氧化碳等 |
溫度范圍： | -200～+150℃ |
介質粘度： | 小于50C St(大于時需定制） |
防護性能： | 防潮、防爆（Exd IICT5)、防腐 |
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（外螺紋和特殊接口可定做或加轉接頭） |
工作原理：
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。
常開：當線圈通電時，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。
規格尺寸：
產品代碼 | GN817 |
公稱通徑 | 選用《LIKZCD系列直動式電磁閥》、《LIKZC系列中低壓電磁閥》、《LIKZCG系列高壓電磁閥》中的標準口徑 |
適用壓力 | 選用《LIKZCD系列直動式電磁閥》、《LIKZC系列中低壓電磁閥》、《LIKZCG系列高壓電磁閥》中的壓力范圍 |
連接尺寸 | 選用《LIKZCD系列直動式電磁閥》、《LIKZC系列中低壓電磁閥》、《LIKZCG系列高壓電磁閥》中的接口尺寸（或定制） |
閥體體質 | 不銹鋼、304或316 |
特殊功能 | （其它功能可定制） |
Applications:
It is widely used in aerospace, shipbuilding Heavy Industry, chemical, refrigeration equipment, Medical equipment, food refrigeration piping systems.
Features:
Spool is stainless steel piston, piston ring with a special low temperature resistant, wear-resistant material; the piston and the metal does not produce direct friction valve chamber, valve mounting direction unlimited; special coil, not easy to burn; a long time to stop action to re-start, for the same sensitivity.
Main technical parameters:
Specifications: | DN0.5～DN100 DN0.5 ~ DN100 |
Body material: | Stainless Steel |
Medium: | Liquid nitrogen, gas, oil, steam, corrosive fluids |
Temperature range: | -200 ~ +150 ℃ |
Media Viscosity: | Less than 50C St (greater than the time to be customized) |
Protection performance: | Moisture-proof, explosion-proof (Exd IICT5), anti-corrosion |
Wiring: | Terminal Block Type; lead type; male |
Control: | Normally open, normally closed |
Power supply voltage: | DC24 ~ 127V; AC36 ~ 380V |
Connection: | Thread, flange (male and special interfaces or add custom adapter) |
How it works:
NC: When the coil is energized, the pilot spool pull the pilot hole to open, pressure relief valve on the chamber, the piston on the lower chamber medium pressure to promote, the electromagnetic valve is opened; When the coil power, the pilot valve by the spring return, pilot hole closed, the valve chamber and pressurized by the piston return spring throttle thrust, the electromagnetic valve is closed.
Normally Open: When the coil is energized, the pilot hole closed, the valve chamber and pressurized by the piston return spring throttle thrust, the electromagnetic valve is closed. When the coil power, the pilot valve by the spring return, pilot hole open, pressure relief valve on the chamber, medium pressure piston push the lower chamber, the electromagnetic valve is opened.
Size:
Product Code | DM817 |
DN | Use "ZCD Series direct-acting solenoid valve", "ZC series of low pressure solenoid valve", "ZCG series of high-pressure solenoid valve" in the standard diameter |
Apply pressure | Use "ZCD Series direct-acting solenoid valve", "ZC series of low pressure solenoid valve", "ZCG series of high-pressure solenoid valve" in the pressure range |
Connection size | Use "ZCD Series direct-acting solenoid valve", "ZC series of low pressure solenoid valve", "ZCG series of high-pressure solenoid valve" in the interface dimensions (or customized) |
Body Constitution | Stainless steel, 304 or 316 |
Special Features | (Other functions can be customized) |
Note: The outlet pressure is greater than the inlet pressure, the media will pass anti-wizard. Can be installed or custom built non-return valve function of the valve
