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  艇念議了崔妻恪 - 仟Y
伊直あずさ涙鷹,及匯肝握議繁耳麿惇,厚謹寄頭萩恵諒蛆
rg2019-05-27  輳苅guoda-valve.com

竃F@NF靡仗苗槓排阜胸慯郵楝慧途猷赫軟俊薦匂P飯庸屍洋甘撤M喇緩夛撹俊薦匂試毘音嬬頼畠指痏組P了崔е袖yD越和鯛音嬬欺_恷寄佩殻哈軟魚yP音欺畠P了崔。

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In order to reduce the speed and pressure of the relay piston impacting the bottom of the relay oil in the closing process, the relay cylinder is equipped with a two-stage closing device, that is, throttling buffer structure.

  • (42)
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  • (11)
  • 功O垢ryS才TX楳~議彫価咀客式稟^ μ=0.15侭參壓恷互邦^ 121.5m r魚y辛參真云附塘崔議嶷NM佩徭嚏P]。遇勣竃F伊直あずさ涙鷹,及匯肝握議繁耳麿惇,厚謹寄頭萩恵諒蛆于残榕嚏P]F鷄罹議l周頁 μ0.27。咀緩辛參誼竃參和Y

    配表邦嫋 #1、#2 魚y壓\佩 2 定參瘁壓P]r竃F阻音揖殻業議P音欺畠P了崔議F鵝N蛍裂J蕋竃F@N秤r議圻咀嗤參和 2 c

    1Butterfly valve after more than 2 years of operation, the valve shaft and bearing may appear between sediment precipitation, resulting in reduced clearance between the valve shaft and bearing, bearing friction factor increased. In the closing process of the valve, when the valve is close to the full closed position, there is a pressure difference between the upper and lower reaches of the valve, the pressure difference will produce a torque on the valve shaft to prevent the closing, the resistance moment is proportional to the friction factor of the bearing, when the resistance moment is greater than the valve closing moment will appear in the above phenomenon.

  • (39)
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