Original document(7 pages)  ä¸­æ–‡ç‰ˆ
    The invention discloses a ¡°hydraulic bellows gate valve¡±, first applies hydraulic transfer principle and provides a ¡°bellows disc¡±, uses auxiliary hand-wheel driven oil cylinder as a hydraulic source, adopts step operation of main and auxiliary hand-wheel to control ON/OFF of the bellow disc to make it have cutting action and easy to operate, where as turned-off, it can achieve the zero-leak standard. The invention radically improves the performance of a gate valve and largely prolongs service life; therefore it is an ideal practical new type gate valve.
Application Number
申请å·		 200610003815 Application Date
申请日		 2006.01.20
Title å称 Hydraulic bellows sluice valve
Publication Number
公开å·		 1831394 Publication Date
公开日		 2006.09.13
Approval Pub. Date Granted Pub. Date
International Classification åˆ†ç±»å· F16K3/18
Applicant(s) Name
申请人		 Bai Longshan
Address åœ°å€ 132002
Inventor(s) Name å‘明人
Attorney & Agent 代ç†äºº

  
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