手动液压无凹槽刀闸阀
Manual hydraulic knife gate valve
手动液压刀闸阀由是由液压缸活塞杆连接阀门闸板，其操作原理手动驱动液压泵手柄把液压油通过手动换向阀压入液压缸的上下腔来带动活塞杆做上下动作，从而带动闸板的启闭来达到阀门开关作用。该产品是一种铸铁整体式刀闸阀结构,其结构包括阀体,闸板和U型密封条,阀体中腔底部设有凹槽并装有弹性U型密封条,当阀门关闭时闸板下移,闸板底部边缘与密封条接触进而压缩密封条进入凹槽中实现阀体和闸板的密封;当刀闸阀开启时闸板上移,闸板底部边缘与密封条脱离,密封条弹起与凹槽平整,能防止刀闸阀在使用过程中,介质沉淀物积存在阀体中腔的凹槽里，不易堵塞、无残留，管道清洗方便，从而有效提高刀闸阀的密封效果,防止阀门关闭时泄漏。使用寿命更长，维护更简单，法兰密封面镶O型圈，无须另配法兰垫片，安装简单方便，磨擦系数小，启闭灵活。
Hydraulic cylinder piston rod connects gate ,the operation principle of manual hydraulic knife gate valve is that through manually handle , manual- driven hydraulic pump makes hydraulic fluid in the upper and lower chamber of hydraulic cylinder to drive gate opened and closed to achieve valve's open and closed.
Cast Iron , with the overall structure,electric knife gate valve includes body,disc and U-seal, groove and flexible U-seal at the bottom of the cavity. Disc is moved down when valve is closed, the bottom edge of disc meets with the seal and then compresses into the groove to achieve sealing . Disc is moved up when knife gate valve is opened, the bottom edge of disc breaks from seal,
Seal bounces up with groove formation to prevent media accumulated in the body cavity , not blocked easily and residue, pipe is cleaned easily ,and to prevent leakage when knife gate valve is closed .That improves knife gate valve's sealing effect effectively . With longer service life, simply maintenance ,flange O-ring sealing , without changing flange gasket,simply installation and small friction coefficient ,flexibly opening and closing,
产品型号：QUZ773X-10
外型结构:凸耳
公称通径范围：DN40-DN800
公称压力范围：国标、美标、日标、德标、英标
材质：铸铁、球墨铸铁
闸板材质： 201、304、316、316L
连接形式：法兰、对夹
阀座密封圈：丁腈橡胶、三元乙丙橡胶
填料密封：含油四氟盘根
适用介质：污水、粉体颗粒、纸浆
Model:QUZ773X-10C
Exterior structure: lugged
Nominal diameter :DN40-DN800
Pressure standard: national standard、American standardd、Japanese standard 、German standard、British standard
Material:cast iron、Ductile cast iron
Disc:201、304、316、316L
Connection: fnge 、wafer
Seat ring :NBR、EPDM
Sealing filler: PTFE
Media:swage、power、 paper pulp、ore pulp、cinde
