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產(chǎn)品特點(diǎn)：
閥芯均為不銹鋼活塞式，活塞環(huán)不會(huì)被介質(zhì)中的雜質(zhì)卡死，動(dòng)密封性能高,壽命長(zhǎng)；活塞與金屬閥腔不產(chǎn)生直接摩擦，閥體安裝方向無(wú)限制；專(zhuān)制線(xiàn)圈，不易燒毀；長(zhǎng)時(shí)間停用，動(dòng)作同樣靈敏；最低啟動(dòng)壓力1.0MPa。

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)：	水、氣、油、燃?xì)?、腐蝕流體等
溫度范圍：	0～+100℃
介質(zhì)粘度：	小于50C St(大于時(shí)需定制）
防護(hù)性能：	防水、防爆（Exd IICT5)、防腐
接線(xiàn)方式：	接線(xiàn)座式；引線(xiàn)式
控制方式：	常開(kāi)、常閉
電源電壓：	DC24～127V; AC36～380V
連接方式：	內(nèi)螺紋、（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(xiàn)圈通電時(shí)，先導(dǎo)閥芯吸合，先導(dǎo)孔打開(kāi)，閥上腔卸壓，活塞靠下腔介質(zhì)壓力推動(dòng)，電磁閥打開(kāi)；當(dāng)線(xiàn)圈斷電時(shí)，先導(dǎo)閥芯靠彈簧復(fù)位，先導(dǎo)孔關(guān)閉，閥腔由活塞節(jié)流孔增壓和復(fù)位彈簧的推力，電磁閥關(guān)閉。
常開(kāi)：當(dāng)線(xiàn)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(xiàn)圈斷電時(shí)，先導(dǎo)閥芯靠彈簧復(fù)位，先導(dǎo)孔打開(kāi)，閥上腔卸壓，活塞靠下腔介質(zhì)壓力推動(dòng)，電磁閥打開(kāi)。

規(guī)格尺寸：

產(chǎn)品代碼	GN814
公稱(chēng)通徑	DN3	DN4	DN5	DN6	DN8	DN10	DN12	DN15
適用壓力	1.0～100MPa
接口螺紋	G1/4		G3/8		G1/2			G3/4
閥體材質(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)??？砂惭b止回閥或訂制自帶止回功能的閥。

Applications:
It is widely used in aerospace, shipbuilding Heavy Industry, petrochemical, test equipment, cleaning equipment, humidification equipment, hydraulic equipment, the work of more than 100MPa pressure pipeline system.

Features:
Spool is stainless steel piston and piston rings will not be stuck impurities in the medium, dynamic sealing performance and long life; piston valve chamber with the metal does not produce direct friction, the valve mounting direction unlimited; authoritarian coil, easily burned ; for a long time disabled, the same movement sensitive; minimum starting pressure 1.0MPa.

Main technical parameters:

Specifications:	DN0.5～DN200 DN0.5 ~ DN200
Body material:	Stainless Steel
Medium:	Water, gas, oil, gas, corrosive fluids
Temperature range:	0 ~ +100 ℃
Media Viscosity:	Less than 50C St (greater than the time to be customized)
Protection performance:	Waterproof, explosion-proof (Exd IICT5), anti-corrosion
Wiring:	Terminal Block Type; leaded
Control:	Normally open, normally closed
Power supply voltage:	DC24 ~ 127V; AC36 ~ 380V
Connection:	Female, (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 throttle valve chamber pressurized by the piston return spring and 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	DM814
DN	DN3	DN4	DN5	DN6	DN8	DN10	DN12	DN15
Apply pressure	1.0 ~ 100MPa
nterface Thread	G1 / 4		G3 / 8		G1 / 2			G3 / 4
Body material	Stainless steel, 304 or 316
Special Features	Other features 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.