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HDPE管廠(chang)家江蘇鑫海論閥門應用中應注(zhu)意(yi)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):
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  • 發布時間:2021-01-26 14:34
  • 訪(fang)問(wen)量(liang):

【概(gai)要描(miao)述(shu)】啟閉(bi)力及(ji)啟(qi)閉力矩是(shi)指閥(fa)門開啟或關(guan)閉所必須施加的(de)作(zuo)用(yong)力(li)或力矩(ju)。關閉閥門時,需要使(shi)啟閉件和(he)發(fa)座(zuo)兩(liang)密(mi)封麵間(jian)形成一定的密封比壓,同(tong)時(shi)還(hai)需克(ke)服(fu)閥杆與填料之間、閥杆和螺母(mu)的螺紋之間、閥杆(gan)端部支承處(chu)和其他磨擦部(bu)位的摩(mo)擦力,因(yin)而(er)必須施加(jia)一定(ding)的關閉力與(yu)關閉力矩,閥門(men)於啟閉過(guo)程中,所需(xu)要(yao)的啟閉力及啟閉力矩是變(bian)化(hua)的,其(qi)比(bi)較(jiao)大(da)值(zhi)是在(zai)關閉的瞬時或(huo)者開(kai)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】啟閉力及啟閉力矩是指閥門開啟或關閉所(suo)必(bi)須(xu)施加的作用力或力矩。關閉閥門時,需要使啟閉件(jian)和發座兩密封(feng)麵間形(xing)成一(yi)定的密封比壓,同時還需克服閥杆與填料之間、閥杆和螺(luo)母的螺紋之間、閥杆端(duan)部支(zhi)承處和其他(ta)磨擦(ca)部位(wei)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(cheng)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。

  • 分類:公司新聞
  • 作者:
  • 來源:
  • 發布時間:2021-01-26 14:34
  • 訪問量:
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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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