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                                                                                                                                進口氧氣截止閥

                                                                                                                                  詳細說明

                                                                                                                                  進口氧氣截止閥

                                                                                                                                  進口氧氣截止閥產品概述

                                                                                                                                  氧氣截止閥(氧氣專用截止閥,不銹鋼氧氣截止閥,天然氣截止閥):在物理化學實驗中,經常要用到氧氣、氮氣、氫氣、氬氣等氣體。這些氣體一般都是貯存在專用的高壓氣體中。使用時通過減壓閥使氣體壓力降至實驗所需范圍,再經過其它控制閥門細調,使氣體輸入使用系統。

                                                                                                                                  氧氣截止閥屬于強制密封式閥門,所以在閥門關閉時,必須向閥瓣施加壓力,以強制密封面不泄漏。當介質由閥瓣下方進入閥六時,操作力所需要克服的阻力,是閥桿和填料的磨擦力與由介質的壓力所產生的推力,關閥門的力比開閥門的力大,所以閥桿的直徑要大,否則會發生閥桿頂彎的故障。近年來,從自密封的閥門出現后,法蘭截止閥的介質流向就改由閥瓣上方進入閥腔,這時在介質壓力作用下,關閥門的力小,而開閥門的力大,閥桿的直徑可以相應地減少。同時,在介質作用下,這種形式的閥門也較嚴密。我國閥門“三化給”曾規定,截止閥的流向,一律采用自上而下。

                                                                                                                                  氧氣截止閥開啟時,閥瓣的開啟高度,為公稱直徑的25%30%時,流量已達到大,表示閥門已達全開位置。所以截止閥的全開位置,應由閥瓣的行程來決定。

                                                                                                                                  進口氧氣截止閥工作原理

                                                                                                                                  氧氣閥作為冶金工業中輸送氧氣管路上的啟閉裝置,較其它通用閥門相比有許多特別嚴格的要求。因為氧氣屬易燃易爆危險品,所以必需防泄漏,防靜電,防火花,以避免發生事故。 在結構上,設計為:閥瓣啟閉時閥桿只升降而不轉動,有效地降低了密封副磨損、填料磨損和上密封磨損;側法蘭上裝有接地螺釘,避免產生靜電火花;閥桿外露部分用有機玻璃密閉封蓋,用以防塵防油

                                                                                                                                  進口氧氣截止閥應用

                                                                                                                                  用于城市液化氣石油氣貯備站,也使用于煉油廠,石油化工廠,石油化工廠的液化氣系統,作為控制介質截的啟閉裝置

                                                                                                                                  進口氧氣截止閥主要技術參數

                                                                                                                                  公稱通徑:DN15-400mm

                                                                                                                                  公稱壓力:PN1.6-4.0Mpa

                                                                                                                                  適用溫度:≤200

                                                                                                                                  適用介質:氧氣

                                                                                                                                  閥體:硅黃銅,不銹鋼

                                                                                                                                  閥桿:不銹鋼

                                                                                                                                  閥芯:銅,不銹鋼

                                                                                                                                  填料:聚四氟乙烯

                                                                                                                                  進口氧氣截止閥選型

                                                                                                                                  a: 產品名稱與氧氣截止閥的型號

                                                                                                                                  b:  氧氣截止閥的操作方式 (有手動 渦輪傳動 氣動 電動等)

                                                                                                                                  c:  氧氣截止閥的密封面材質和硬度

                                                                                                                                  d:  氧氣截止閥的閥體材質

                                                                                                                                  e:  氧氣截止閥的壓力

                                                                                                                                  f:  氧氣截止閥的使用介質(名稱、粘度、顆粒 腐蝕性、毒性)

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