閥門(mén)的識(shí)別對(duì)在缺少閥門(mén)圖紙資料，丟失了銘牌和閥門(mén)零件不齊全的情況下，正確地使用閥門(mén)，焊補(bǔ)閥件，修復(fù)閥件和更換閥件具有重要意義?，F(xiàn)將閥門(mén)的標(biāo)識(shí)、材質(zhì)鑒別和閥門(mén)的識(shí)別分述如下：

The identification of valves is of great significance for the correct use of valves, welding repair of valve components, repairing and replacing valve components in the absence of valve drawings, loss of nameplates, and incomplete valve components. The identification, material identification, and valve identification of valves are described as follows:

　　利用“閥門(mén)的站礎(chǔ)知識(shí)”中學(xué)到知識(shí)，根據(jù)閥門(mén)上的銘牌和標(biāo)志以及閥門(mén)上的涂漆顏色.就可以直接識(shí)別閥門(mén)的類(lèi)別、結(jié)構(gòu)形式、材料、公稱(chēng)通徑、公稱(chēng)壓力（或工作壓力）、適應(yīng)介質(zhì)、溫度及關(guān)閉方向等。

By utilizing the basic knowledge of valves, one can directly identify the type, structural form, material, nominal diameter, nominal pressure (or working pressure), suitable medium, temperature, and closing direction of the valve based on the nameplate and logo on the valve, as well as the paint color on the valve.

　　1.銘牌固定在閥體或手輪上。銘牌的數(shù)據(jù)比較全，反映了閥門(mén)基本特性。根據(jù)銘牌上的生產(chǎn)廠(chǎng)，向生井廠(chǎng)索取該閥易損怦圖紙和資料，根據(jù)出廠(chǎng)日期參考修理的內(nèi)容。根據(jù)銘牌上提供的使用條件，確定更換墊片、盤(pán)根的材料和形式以及確定更換其他閥件的材料

1. The nameplate is fixed on the valve body or handwheel. The data on the nameplate is quite comprehensive, reflecting the basic characteristics of the valve. According to the manufacturer on the nameplate, request the vulnerable valve diagram and information from Shengjing Factory, and refer to the repair content based on the factory date. Based on the usage conditions provided on the nameplate, determine the materials and forms for replacing gaskets and packing, as well as the materials for replacing other valve components

　　2.標(biāo)志是用鑄造，打印等方法在閥體上標(biāo)示閥門(mén)公稱(chēng)壓力、工作壓力、公稱(chēng)口徑和介質(zhì)流向的。

2. The mark is used to indicate the nominal pressure, working pressure, nominal diameter, and medium flow direction of the valve on the valve body through casting, printing, and other methods.

　　閥門(mén)上還有一種標(biāo)志——開(kāi)度指示器，它有開(kāi)啟的標(biāo)尺刻度線(xiàn)或表示開(kāi)閉的箭頭等。節(jié)流閥、暗桿閘閥上端安裝有開(kāi)度指示器，在手輪上標(biāo)有箭頭指向表示關(guān)閉方向。在閥桿端面部位上刻有直線(xiàn)溝槽口與閥門(mén)通道一致表示開(kāi)啟，溝槽與通道成90°時(shí)為關(guān)閉。

There is also a sign on the valve - an opening indicator, which has an open scale line or an arrow indicating the opening and closing. The upper end of the throttle valve and non rising stem gate valve is equipped with an opening indicator, and an arrow is marked on the handwheel to indicate the direction of closure. A straight groove is engraved on the end face of the valve stem, which is consistent with the valve channel to indicate opening. When the groove is at a 90 ° angle with the channel, it is considered closed.

　　3.閥門(mén)上涂有各種油漆，不光是為了防銹好看。而是為了便于識(shí)別閥門(mén)的材料。表示閥體材料的涂漆。表示密封面材料的涂漆。

3. The valve is coated with various paints, not only for rust prevention and aesthetics. But for the convenience of identifying the material of the valve. Indicates the painting of the valve body material. Indicates the painting of the sealing surface material.

　　為了從閥門(mén)的外觀(guān)看出它的結(jié)構(gòu)、材質(zhì)和基本特性，要求在閥體上鑄造、打印或安上銘牌，表明閥門(mén)型號(hào)、公稱(chēng)直徑、介質(zhì)流向及廠(chǎng)名，并在閥體、手輪及法蘭外緣上按規(guī)定刷不同顏色的漆。

In order to see the structure, material, and basic characteristics of the valve from its appearance, it is required to cast, print, or install a nameplate on the valve body, indicating the valve model, nominal diameter, medium flow direction, and factory name. Different colors of paint should be painted on the valve body, handwheel, and flange outer edges according to regulations.

　　以上是關(guān)于 良工閥門(mén) 的介紹，若想了解相關(guān)知識(shí)可請(qǐng)點(diǎn)擊：http://m.tjit022.com  我們將會(huì)全心全意為您提供滿(mǎn)分服務(wù)，歡迎您的來(lái)電！

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