進(jìn)口不銹鋼真空電磁閥
德國泰科閥門(國際)有限公司—廣州總代理
德國泰科新型多功能電磁閥安裝管路:
兼具手動功能,省去三只手動閥,可以在線維修,大大降低成本。
1、介質(zhì)粘度適用范圍可調(diào):調(diào)節(jié)可實(shí)現(xiàn)氣、水、油通用,方便采購 、貯存、安裝和維護(hù)。
2、閥門開啟關(guān)閉時間可調(diào):滿足各種不同要求,有效防止水錘破壞。
3、 閥門開度可以調(diào)節(jié):大和小開度可預(yù)置,提高自動控制精度。
4、 主閥磨損可以補(bǔ)償::延長閥門使用壽命,經(jīng)受長期考驗(yàn)。
5、 口徑:DN1-DN1200。
6、 溫度:-196-450℃。
結(jié)構(gòu)原理:
本閥巧妙地將先導(dǎo)電磁閥、手動閥和節(jié)流閥組合于一體,先導(dǎo)閥接受電信號開關(guān)后帶動主閥動作。調(diào)節(jié)螺釘A、B可調(diào)節(jié)介質(zhì)粘度適用范圍和主閥開關(guān)時間,并可在主閥磨損后進(jìn)行補(bǔ)償。
導(dǎo)閥需維修時只要旋緊調(diào)節(jié)螺釘B和隔離螺釘C,即可拆下,并可用手動螺桿操作。該螺桿還可用來預(yù)置電磁閥自動控制時的大或小流量。
電磁閥從原理上分為三大類:
1)直動式電磁閥:
原理:通電時,電磁線圈產(chǎn)生電磁力把關(guān)閉件從閥座上提起,閥門打開;斷電時,電磁力消失,彈簧把關(guān)閉件壓在閥座上,閥門關(guān)閉。
特點(diǎn):在真空、負(fù)壓、零壓時能正常工作,但通徑一般不超過25mm。
2)分步直動式電磁閥:
原理:它是一種直動和先導(dǎo)式相結(jié)合的原理,當(dāng)入口與出口沒有壓差時,通電后,電磁力直接把先導(dǎo)小閥和主閥關(guān)閉件依次向上提起,閥門打開。當(dāng)入口與出口達(dá)到啟動壓差時,通電后,電磁力先導(dǎo)小閥,主閥下腔壓力上升,上腔壓力下降,從而利用壓差把主閥向上推開;斷電時,先導(dǎo)閥利用彈簧力或介質(zhì)壓力推動關(guān)閉件,向下移動,使閥門關(guān)閉。
特點(diǎn):在零壓差或真空、高壓時亦能可*動作,但功率較大,要求必須水平安裝。
3)先導(dǎo)式電磁閥:
原理:通電時,電磁力把先導(dǎo)孔打開,上腔室壓力迅速下降,在關(guān) 閉件周圍形成上低下高的壓差,流體壓力推動關(guān)閉件向上移動,閥門打開;斷電時,彈簧力把先導(dǎo)孔關(guān)閉,入口壓力通過旁通孔迅速腔室在關(guān)閥件周圍形成下低上高的壓差,流體壓力推動關(guān)閉件向下移動,關(guān)閉閥門。
特點(diǎn):流體壓力范圍上限較高,可任意安裝(需定制)但必須滿足流體壓差條件。
2.電磁閥從閥結(jié)構(gòu)和材料上的不同與原理上的區(qū)別,分為六個分支小類: 直動活塞結(jié)構(gòu)、分步直動活塞結(jié)構(gòu)、先導(dǎo)活塞結(jié)構(gòu)、直動活塞結(jié)構(gòu)、分步直動活塞結(jié)構(gòu)、先導(dǎo)活塞結(jié)構(gòu)
German TEK Valves (International) Co., Ltd. - Guangzhou distributor
New multifunctional solenoid valve installed piping: both manual functions, eliminating three manual valves, online maintenance, greatly reducing costs. 1, medium viscosity Scope Adjustable: Adjust to achieve gas, water, oil, GM, facilitate the procurement, storage, installation and maintenance. 2, the valve open and close time adjustable: meet different requirements, to effectively prevent water hammer damage. 3, the valve opening can be adjusted: the maximum and minimum opening can be preset to improve the accuracy of automatic control. 4, the main valve wear can be compensated :: extend valve life, and withstood the test of time. 5, diameter: DN1-DN1200. 6, the temperature: -196-450 ℃. Structural principle of the pilot valve cleverly solenoid valve, manual valve and the throttle valve combinations in one, the pilot valve receiving electrical switch driven main valve action. Adjusting screw A, B medium viscosity can be adjusted scope and main valve switching time, and after the main valve to compensate for wear. As long as the pilot valve required maintenance Tighten adjusting screw B and isolation screw C, can be removed and used manually screw operation. The screw can also be used to initialize the automatic control valve, the maximum or minimum flow rate. A solenoid valve from the principle divided into three categories: 1) direct acting solenoid valve: Principle: power, the electromagnetic coil of electromagnetic force to lift the closure of parts from the valve seat, the valve opens; power, the electromagnetic force disappears , the spring of the closure member against the valve seat, the valve closes. Features: In a vacuum, negative, zero pressure can work, but the path is generally not more than 25mm. 2) step direct acting solenoid valve: Principle: It is a direct-acting and pilot-style combination of theory, no pressure when the inlet and outlet, the power, the electromagnetic force directly to the pilot valve and the main valve closure member in turn lift the valve to open. When the inlet and outlet to start pressure, the power, the electromagnetic force pilot valve, the main valve chamber under increased pressure, the chamber pressure drops, and thus the use of pressure to the main valve is pushed upwards; power, the pilot valve with a spring force or medium pressure to promote off pieces, moving down, so that the valve closes. Features: zero pressure or vacuum, high pressure can also be * action, but the power is larger, the request must be installed horizontally. 3) Pilot solenoid valve: Principle: power, the electromagnetic force open the pilot hole, the upper chamber pressure decreased rapidly formed around the closed lower on the high pressure, the fluid pressure to promote off pieces to move up, the valve opens; off electricity, the spring force of the pilot hole closed, the inlet pressure chamber through the bypass hole quickly formed around the closing valve under high pressure low on fluid pressure to promote off pieces moving down, close the valve. Features: Fluid pressure range limit is higher, can be any installation (to be customized) but must meet the conditions of fluid pressure. 2 solenoid valve structure and materials from the different and the difference principle, is divided into six branches subcategories: direct-acting piston structure, step by step direct-acting piston structure, the pilot piston structure, direct-acting piston structure, step straight piston structure, the pilot piston structure.
進(jìn)口不銹鋼真空電磁閥