BG系列單作用氣動球閥-浙江博科閥門科技有限公司_hot电竞

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    BG系列單作用氣動球閥

    BG系列單作用氣動球閥
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       氣動單作用球閥主要用于截斷或接通管路中的介質,亦可用用于流體的調節與控制,它與其它氣動球閥類相比,具有以下一些優點。
    1、流體阻力小、球閥是所有閥類中流體阻力最小的一種,即使是縮徑球閥,其流體阻力也相當小。
    2、止推軸承減小閥杆磨擦力矩,可使閥杆長期操作平穩靈活。
    3、閥杆密封可靠,由于閥杆隻作彷轉動運而不做升降運動,閥杆的填料密封不易破壞,且密封能力随着介質的壓力增高而增大。
    4、閥座密封性能好,采用聚四氟乙烯等彈性材料制成的密封圈,結構易于密封,而且球閥的閥封能力随着介質壓力的增高而增大。
    5、由于聚四氟乙烯等材料具有良好的自潤滑性,與球體的磨擦損失小,故球閥的使用壽命長。
    6、下裝式閥杆和閥杆頭部凸階防止閥杆噴出,如火災造成閥杆密封破壞,凸階與閥體間還可形成金屬接觸,确保閥杆密封。
    7、 防靜電功能:在球體、閥杆、閥體之間設置彈簧,能将開關過程産生的靜電導出。

    二、執行機構

    采用新型系列GT型氣動執行器,有雙作用式和單作用式(彈簧複位),齒輪齒條傳動,安全可靠;大口徑閥門采用系列AW型氣動執行器拔叉式傳動,結構合理,輸出扭矩大,有雙作用式和單作用式。

    1、氣缸選用鋁金材料,重量輕、外形美觀。
    2、齒輪式雙活塞,輸出力矩大,體積小。
    3、齒條式連接可調節開啟角度、額定流量。
    4、可在頂部、底部安裝手動操作機構。
    5、執行器可選帶電訊号反饋指示及各類附件以實現自動化操作。
    6、IS05211标準連接為産品的安裝更換提供了方便。
    7、兩端調的節螺釘可使标準産品在0°和90°有±4°的可調範圍。确保與閥門的同步精度。
    三、附件的選項
    根據不同控制和要求可選擇下列附件:
    切斷型附件:單電控電磁閥、雙電控電磁閥、限位開關回訊器。
    調節型附件:電氣定位器、氣動定位器、電氣轉換器。
    氣源處理附件:空氣過濾減壓閥、氣源處理三聯件。
    手動機構:HVSD手操機構 

    四、執行标準

    1、設計與制造:GB12237-89、API608、API 6D、JPI 7S-48、BS5351、DIN3357。
    2、法蘭尺寸:JB/T74~90(JB74~90)、GB9112~9131、HGJ44~76、SH3406、ANSI B16.5、JIS B2212~2214、NF E29-211、DIN2543。
    3、結構長度:GB12221-89、ANSI B16.10、JIS B2002、NF E29-305、DIN3202。
    4、檢驗主試驗:JB/T 9092、API 598。

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