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進(jìn)口單座調(diào)節(jié)閥

進(jìn)口單座調(diào)節(jié)閥是自控儀表中的執(zhí)行單元，它由多彈簧薄膜執(zhí)行機(jī)構(gòu)和直通單座襯氟塑閥兩部分組成。由于該閥接觸介質(zhì)的部位均采用高壓注塑工藝，襯有能耐腐蝕，耐老化的聚全氟乙丙烯（簡(jiǎn)稱F46），又采用聚四氟乙烯波紋管密封，因而該閥廣泛適用于化工、石油、冶金、醫(yī)藥、電力等行業(yè)中酸（如鹽酸、硫酸、氫氟酸）、堿等強(qiáng)腐蝕介質(zhì)和有毒、易揮發(fā)等氣體、液體介質(zhì)的過(guò)程控制。The import single seat regulating valve is the executive unit of the automatic instrument. It is composed of two parts of the multi spring film actuator and the direct single seat fluorine plastic valve. Since the valve wetted parts are high-pressure injection molding process, lined with corrosion resistance, aging resistance of the fluorinated ethylene propylene (F46), and the use of PTFE bellows seal, so that the valve is widely used in chemical, petroleum, metallurgy, medicine, power and other industries (such as hydrochloric acid, sulfuric acid, acid hydrofluoric acid), alkali and other strong corrosive media and toxic and volatile gas and liquid medium

進(jìn)口單座調(diào)節(jié)閥特點(diǎn)：The characteristics of imported single seat regulating valve:

1，耐腐蝕：閥體內(nèi)腔、閥芯、閥座、閥桿均包襯2.5-3MM厚F46，能耐酸、堿、耐強(qiáng)腐蝕。

2，密封性能好：采用聚四氟乙烯材質(zhì)的波紋管和填料雙重密封，確保無(wú)滲漏。

3，泄漏量?。河捎陂y芯、閥座是軟密封，故泄漏量小，高于國(guó)家Ⅳ級(jí)標(biāo)準(zhǔn)。

4，采用精小型多彈簧執(zhí)行機(jī)構(gòu)，體積小，重量輕，調(diào)節(jié)精度高。

1, corrosion resistance: valve body inner cavity, valve core, seat, valve stem all wrap 2.5-3MM thick F46, can withstand acid, alkali, strong corrosion resistance.

2, good sealing performance: the use of polytetrafluoroethylene corrugated pipe and packing double seal, to ensure no leakage.

3, small leakage: because the valve core, valve seat is soft seal, so the leakage is small, higher than the national level IV standard.

4, a small and multi spring actuating mechanism is adopted, which is small in volume, light in weight and high in adjustment precision.

進(jìn)口調(diào)節(jié)閥的“單座”，“雙座”指的是什么The "single seat" of the import regulating valve and what the "double seat" refers to

進(jìn)口單座調(diào)節(jié)閥閥體內(nèi)有一個(gè)閥芯和一個(gè)閥座，具有泄漏量小的特點(diǎn)。該閥不平衡力大，其允許壓差較雙座閥小，在高壓差、大口徑時(shí)，配上閥門定位器。公稱通徑≥25mm的閥為雙導(dǎo)向結(jié)構(gòu)，只要改變閥桿與閥芯的連接位置就可實(shí)現(xiàn)氣開(kāi)或氣閉。
　　雙座調(diào)節(jié)閥是自動(dòng)化控制系統(tǒng)中儀表的執(zhí)行單元，以AC220V電源電壓作動(dòng)力，接受來(lái)自DCS、PLC系統(tǒng)或調(diào)節(jié)儀表、操作器等輸入的（4-20mA、0-10mA或1-5VDC）電流信號(hào)或電壓信號(hào)，即可控制運(yùn)轉(zhuǎn)，采用機(jī)電一體化結(jié)構(gòu)，具有機(jī)內(nèi)伺服操作和開(kāi)度信號(hào)位置反饋、位置指示、手動(dòng)操作等功能，功能強(qiáng)、性能可靠、連線簡(jiǎn)單、調(diào)節(jié)精度高，以直行程輸出的推力改變閥門開(kāi)度位移，達(dá)到對(duì)流體介質(zhì)的工藝參數(shù)精確調(diào)節(jié)控制。

The inlet single seat valve valve has a valve core and a valve seat in the body, which has the characteristics of small leakage. The valve has a large unbalance force, and it allows the pressure difference to be smaller than the double seat valve. In the case of high pressure difference and large caliber, the valve is better equipped with a valve locator. The nominal diameter greater than 25mm valve for the double guide structure, can realize the open air or gas closed as long as the change of connection position of the valve rod and the valve core.

Double seat valve is the execution unit automation system and instrument, the power supply voltage of AC220V, DCS, etc. from the operator PLC system or instrument, input (4-20mA, 0-10mA or 1-5VDC) current or voltage signal, thel operation can be used, the mechanical and electrical integration structure, with built-in servo operation and the opening position signal feedback, position indicator, manual operation function, strong function, reliable performance, simple connection, high adjustment precision, with straight stroke output thrust to change the valve opening displacement, achieve the parameters of the fluid medium precision