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HDPE管廠家(jia)江蘇鑫海論閥門應(ying)用中應注意(yi)的性(xing)能下

HDPE管廠家江蘇鑫海論閥門應用中應注意的性能下

  • 分類(lei):公司新聞
  • 作(zuo)者:
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  • 發布時間:2021-01-26 14:34
  • 訪問(wen)量(liang):

【概(gai)要描(miao)述】啟(qi)閉(bi)力(li)及(ji)啟閉力矩是(shi)指(zhi)閥門開(kai)啟或(huo)關閉所(suo)必須施加(jia)的作用力或力矩。關(guan)閉閥門時(shi),需(xu)要使(shi)啟閉件和發座兩密封(feng)麵(mian)間(jian)形(xing)成一定的密(mi)封比(bi)壓,同時還需克(ke)服閥(fa)杆與(yu)填料(liao)之(zhi)間、閥杆(gan)和螺(luo)母(mu)的(de)螺紋之間、閥杆端部支承(cheng)處和其(qi)他磨擦部位的摩(mo)擦(ca)力,因而必須(xu)施(shi)加一(yi)定(ding)的關閉力與關閉力矩(ju),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(da)值是在關閉的瞬(shun)時或者(zhe)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(yao)描述(shu)】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(men)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(tong)時還(hai)需克服(fu)閥杆與填料之間、閥杆和(he)螺母的螺紋之間、閥杆端部支承處(chu)和其他磨(mo)擦部位(wei)的摩擦力,因(yin)而必須施加一定的關閉力與關閉力矩,閥門於(yu)啟閉過(guo)程中,所需要的啟閉力及啟閉力矩是變化的,其比較(jiao)大值是在關閉的瞬時或者開啟的瞬時。

  • 分(fen)類:公司新聞
  • 作者:
  • 來源:
  • 發(fa)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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