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Experience in pneumatic control valve maintenance
The author: Time:2019/9/26

氣動(dòng)調(diào)節(jié)閥的保養(yǎng)維護(hù)經(jīng)驗(yàn)
1.新安裝的氣動(dòng)調(diào)節(jié)閥應(yīng)有產(chǎn)品合格證,外觀上需無砂眼、氣孔或裂紋。
2.閥門開完后應(yīng)回半圈,從而以防誤開為關(guān);閥門關(guān)閉費(fèi)力時(shí)需要應(yīng)用特制的扳手、盡量避免用管鉗,千萬不可用力過猛或用工具將閥門關(guān)得過死。
3.氣動(dòng)切斷閥的填料壓蓋應(yīng)該壓平整,開關(guān)要靈活;使用閥門時(shí)的壓力、溫度等級(jí)應(yīng)與管道工作壓力相一致,不可將低壓閥門裝在高壓管道上。
4.對(duì)減壓閥、調(diào)節(jié)閥、疏水閥等自動(dòng)閥門在啟動(dòng)時(shí),需要將管道沖洗干凈,未裝旁路
和沖洗管的疏水閥,應(yīng)將疏水閥拆下,吹凈管道再裝上使用。
5.在開啟之前應(yīng)先預(yù)熱并排除凝結(jié)水,然后慢慢開啟閥門以避免氣、水沖擊,當(dāng)閥全開后,應(yīng)將手輪再倒轉(zhuǎn)半圈,使螺紋之間嚴(yán)密;對(duì)長(zhǎng)期閉停的水閥、應(yīng)注意排除積水。

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