科恩科KNKE先導(dǎo)式電磁閥，Pilot solenoidvalve，通電時，依靠電磁力提起閥桿，導(dǎo)閥口打開，此時電磁閥上腔通過先導(dǎo)孔卸壓，在主閥芯周圍形成上低下高的壓差，在壓力差的作用下，流體壓力推動主閥芯向上移動將主閥口打開；斷電時，在彈簧力和主閥芯重力的作用下，閥桿復(fù)位，電磁閥上腔壓力升高，流體壓力推動主閥芯向下移動，主閥口關(guān)閉。

先導(dǎo)式電磁閥應(yīng)用范圍

性能特點(diǎn)：通用性廣、靈敏性高、嚴(yán)密性強(qiáng)、壽命性長

工作范圍：給水排水、醫(yī)療、食品、冶金、石油化工、煙草、消防設(shè)備、樓宇自控、電力設(shè)備、紡織、包裝設(shè)備、船舶工業(yè)、清洗設(shè)備、干燥設(shè)備、鍋爐、灌裝計量等

進(jìn)口先導(dǎo)式電磁閥技術(shù)參數(shù)

規(guī)格尺寸：DN1-300mm

原理結(jié)構(gòu)：分步直動導(dǎo)向活塞式

工作環(huán)境溫度：-10-+50℃ -40-+80℃

線圈工作溫度： <+50℃、<+85℃

控制方式：常閉、常開

流通流體壓力： 6bar 、10bar、16bar、25bar、40bar

閥體材質(zhì)：鑄鐵、鑄鋼、不銹鋼304、316。（鑄鐵不能用在腐蝕流體上）

適用介質(zhì)：氣、水、油、蒸汽、燃?xì)?、腐蝕性流體。
介質(zhì)溫度：-200~+350℃。
介質(zhì)粘度：小于50CSt （大于50時需定制）。
防護(hù)性能：防水、防爆（Exd IICT5）、防腐。
閥芯材質(zhì)：均為不銹鋼。
接線方式：接線座式、引線式、插頭式。
電源電壓：DC12、DC24V、DC36V、DC110V、DC127V、DC220V、DC380V；

         AC24V、AC36、AC110V、AC127V、AC220V、AC380V。
連接方式：內(nèi)螺紋，法蘭

泄 漏 量：零
備注：特殊型可定制。

When Konko KNKE pilot operated solenoid valve is energized, thevalve stem is lifted by electromagnetic force, and the pilot valveport is opened. At this time, the upper chamber of the solenoidvalve relieves pressure through the pilot hole, forming a pressuredifference of high, low and high around the main valve core. Underthe effect of the pressure difference, the fluid pressure pushesthe main valve core upward to open the main valve port; In case ofpower failure, under the action of spring force and gravity of mainvalve core, the valve rod resets, the pressure of upper chamber ofsolenoid valve rises, the fluid pressure pushes the main valve coredownward, and the main valve port is closed.

Application range of pilot operated solenoid valve

Performance features: wide versatility, high sensitivity, strongtightness and long service life

Scope of work: water supply and drainage, medical treatment,food, metallurgy, petrochemical industry, tobacco, fire fightinge, building automation, electrical e, textile,packaging e, shipbuilding industry, cleaning e,drying e, boilers, filling and metering, etc

Technical parameters of imported pilot operated solenoidvalve

Size: DN1-300mm

Principle and structure: step-by-step direct acting guide pistontype

Working environment temperature: - 10 -+50 ℃ - 40 -+80 ℃

Working temperature of coil:<+50 ℃,<+85 ℃

Control mode: normally closed, normally open

Fluid pressure: 6bar, 10bar, 16bar, 25bar, 40bar

Valve body material: cast iron, cast steel, stainless steel 304,316. (Cast iron cannot be used on corrosive fluids)

Applicable medium: gas, water, oil, steam, gas, corrosivefluid.

Medium temperature: - 200~+350 ℃.

Medium viscosity: less than 50CSt (customized if more than50).

Protection performance: waterproof, explosion-proof (Exd IICT5),anti-corrosion.

Valve element material: stainless steel.

Wiring mode: wiring base type, lead type, plug type.

Power supply voltage: DC12, DC24V, DC36V, DC110V, DC127V,DC220V, DC380V;

AC24V、AC36、AC110V、AC127V、AC220V、AC380V。

Connection mode: internal thread, flange

Leakage: zero

Note: Special type can be customized.