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閥門的選用
[作者:aowl] [日期:18-03-14] [瀏覽次數:] [來源:http://www.mobiinet.com]
1、閘閥適用於經常保持全開、全關的場合,不宜做節流或調節用。 2、截止閥適用於頻繁開關的場合,可作截斷閥用,不應用於雙向流動的工藝管道和含有固體顆粒介質的管道。 3、止回閥適用於防止介質倒流的管道,要求衝擊力小,l流阻低。當介質流量範圍波動大時,止回閥應設緩衝裝置。 4、蝶閥具有截斷和開放的功能,當開啟角度為15°-70°時,可進行流量調節。 5、球閥具有截斷、開放和適度節流的功能,可用於粘度高和帶懸浮顆粒介質的管道。用於輸送式藝物料為極度危害、高度危害和可燃介質管道的球閥,應選用防(耐)火,防靜電結構。 1, gate valves for keep fully open and fully closed places, do not use or adjust the throttle. 2. The cut-off valve is suitable for frequent switch occasions, can be used as a truncation valve, not used in two-way flow of process pipes and pipes containing solid granular media. 3. The check valve is suitable for the pipeline to prevent the reverse flow of the medium, which requires small impact force and low l flow resistance. When the flow range of the medium is fluctuating, the check valve should be set up. 4, the butterfly valve has the function of truncation and opening. When the opening angle is 15 -70 degrees, the flow regulation can be carried out. 5, the ball valve has the function of truncation, opening and moderate throttle, which can be used for pipes with high viscosity and suspended particulate medium. The ball valve used for transporting materials for extreme harm, high hazard and flammable medium pipe should be used for anti - fire and anti - static structure.

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