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

不了解閥門材料的顏色識別法

【分析】

閥門的類別、驅動方式和連接形式，可以從閥門的外形加以識別。公稱通徑、公稱壓力和介質流動的方向，也由制造廠標示在閥體的正面，可以直接看出。對于閥體材料、密封囫材料以及帶有襯里的材料，必須根據閥件各部位所涂油漆的顏色來識別。

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日韩AV一区二区

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