進(jìn)口常開電磁閥-德國(guó)威樂品牌
德國(guó)威樂WILO品牌：進(jìn)口常開電磁閥它廣泛應(yīng)用于船舶重工、測(cè)試設(shè)備、加熱設(shè)備、液壓設(shè)備等，工作溫度在300℃以上的導(dǎo)熱系統(tǒng)中。
產(chǎn)品特點(diǎn)：
閥芯均為不銹活塞式，活塞環(huán)用特殊耐溫、耐磨材料制作；活塞與金屬閥腔不產(chǎn)生直接摩擦，閥體安裝方向無限制；特制線圈，并采用散熱的結(jié)構(gòu)方式，因此不易燒毀；長(zhǎng)時(shí)間停止動(dòng)作重新啟動(dòng)，動(dòng)作同樣靈敏；zui低啟動(dòng)壓力0.2MPa。
主要技術(shù)參數(shù)：
產(chǎn)品規(guī)格： | DN0.5～DN200 |
閥體材質(zhì)： | 不銹鋼 |
適用介質(zhì)： | 油、蒸汽、腐蝕流體等 |
溫度范圍： | +300～+450℃ |
防護(hù)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(nèi)螺紋、法蘭（外螺紋和特殊接口可定做或加轉(zhuǎn)接頭） |
工作原理：
常閉：當(dāng)線圈通電時(shí)，先導(dǎo)閥芯吸合，先導(dǎo)孔打開，閥上卸壓，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，閥關(guān)閉。
常開：當(dāng)線圈通電時(shí)，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。
規(guī)格尺寸：
產(chǎn)品代碼 | GN815 |
公稱通徑 | 選用《ZCD系列直動(dòng)式電磁閥》、《ZC系列中低壓電磁閥》中的標(biāo)準(zhǔn)口徑 |
適用壓力 | 選用《ZCD系列直動(dòng)式電磁閥》、《ZC系列中低壓電磁閥》中的壓力范圍 |
連接尺寸 | 選用《ZCD系列直動(dòng)式電磁閥》、《ZC系列中低壓電磁閥》中的接口尺寸（或定制） |
閥體體質(zhì) | 不銹鋼、304或316 |
特殊功能 | （其它功能可定制） |
注：出口端壓力大于進(jìn)口端壓力，介質(zhì)會(huì)反向?qū)ā？砂惭b止回閥或訂制自帶止回功能的閥。
Applications:
It is widely used in shipbuilding Heavy Industry, test equipment, heating equipment, hydraulic equipment, the working temperature above 300 ℃ thermal systems.
Features:
Are stainless steel piston valve, piston ring with a special temperature, wear-resistant material; piston valve chamber with the metal does not have a direct friction, the valve mounting direction unlimited; special coil structure and way of using heat, it is not easy burned; long time to restart the stopped action, action as sensitive; minimum starting pressure 0.2MPa.
Main technical parameters:
Specifications: | DN0.5～DN200 |
Body material: | Stainless Steel |
Medium: | Oil, steam, corrosive fluids |
Temperature range: | +300 ~ +450 ℃ |
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, piston push media pressure on the lower chamber, the electromagnetic valve is opened; When the coil power, the pilot valve by the spring return, pilot hole Close the valve on the throttle chamber pressurized by the piston return spring and thrust, the valve 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 | DM815 |
DN | Use "ZCD Series direct-acting solenoid valve", "ZC series of low pressure solenoid valve" in the standard diameter |
Apply pressure | Use "ZCD Series direct-acting solenoid valve", "ZC series of low pressure solenoid valve" in the pressure range |
Connection size | Use "ZCD Series direct-acting solenoid valve", "ZC series of low 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
