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HDPE管廠家(jia)江蘇鑫海(hai)論閥門應(ying)用中應注(zhu)意的性(xing)能(neng)下

HDPE管廠家江蘇鑫海論閥門應用中應注意的性能下

  • 分(fen)類(lei):公司新聞
  • 作者(zhe):
  • 來源:
  • 發(fa)布時間:2021-01-26 14:34
  • 訪(fang)問(wen)量:

【概(gai)要(yao)描述】啟(qi)閉(bi)力及(ji)啟閉力矩是指閥(fa)門(men)開(kai)啟或關(guan)閉所(suo)必須(xu)施加的作(zuo)用力或力矩(ju)。關閉閥門時,需要使啟閉件和發座兩密(mi)封(feng)麵(mian)間(jian)形成一(yi)定的(de)密封比(bi)壓,同(tong)時還(hai)需克服閥杆與(yu)填(tian)料(liao)之(zhi)間、閥杆(gan)和(he)螺母的螺紋之間、閥杆端(duan)部支(zhi)承(cheng)處(chu)和其他磨(mo)擦部位的摩(mo)擦力,因(yin)而必(bi)須施加(jia)一定的關閉力與關閉力矩,閥門於啟閉過(guo)程(cheng)中,所需(xu)要的啟閉力及啟閉力(li)矩是(shi)變(bian)化的,其(qi)比較(jiao)大值(zhi)是在關閉的瞬(shun)時(shi)或(huo)者開啟的瞬時。

HDPE管廠家江蘇鑫海論閥門應用中應注意的性能下

【概要描述(shu)】啟閉力及啟閉力矩是指(zhi)閥門開啟或關閉所必須施加的作用力或力矩。關閉閥門時,需要使啟閉件和發座兩(liang)密封麵間形(xing)成一定的密封比壓(ya),同時還需克服閥杆與填料之間、閥杆和螺(luo)母(mu)的螺紋(wen)之間、閥杆端部(bu)支承處和其他磨擦(ca)部位(wei)的摩擦力,因而(er)必須施加一定(ding)的關閉力與關閉力矩,閥門於啟閉過程中(zhong),所需要的啟閉力及啟閉力矩是變化(hua)的,其比較大(da)值是在關閉的瞬時或者開啟的瞬時。

  • 分類:公司新聞
  • 作者:
  • 來源(yuan):
  • 發布(bu)時間:2021-01-26 14:34
  • 訪問量:
詳情
生產廠家江蘇鑫海管閥件製造有限公司論閥門應用中應注意的性能
 
啟閉力及啟閉力矩
啟閉力及啟閉力矩是指閥門開啟或關閉所必須施加的作用力或力矩。關閉閥門時,需要使啟閉件和發座兩密封麵間形成一定的密封比壓,同時還需克服閥杆與填料之間、閥杆和螺母的螺紋之間、閥杆端部支承處和其他磨擦部位的摩擦力,因而必須施加一定的關閉力與關閉力矩,閥門於啟閉過程中,所需要的啟閉力及啟閉力矩是變化的,其比較大值是在關閉的瞬時或者開啟的瞬時。設計和製造閥門時應力求降低其關閉力和關閉力矩。 
 
啟閉速度
啟閉速度是用閥門完成一次開啟或關閉動作所需的時間來表示。一般對閥門的啟閉速度沒有嚴格要求,轉子泵但有些工況對於啟閉速度有特殊要求,如有的要求迅速開啟或者關閉,以防發生事故,有的需要緩慢關閉,以防產生水擊等,這在選用閥門類型時應加以考慮。

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中空壁(bi)纏繞(rao)管

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