nongroove pnuematic knife gate valve
气动无凹槽刀闸阀又称气动双向刀闸阀，铸铁阀体采用整体式结构刀闸阀,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，该系列刀闸阀可配气动执行器，以满足不同工矿要求使用。号（200620047950.0）
Pneumatic knife gate valve without groove is also called two-way pneumatic knife gate valve.Cast Iron , with the overall structure,bevel gear 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, the series knife gate valve can be equipped with bevel gear to easily open to meet different industrial and mining using.
Patent number（200620047950.0）
产品型号：QUZ673X-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、球磨铸铁
闸板材质： 201、304、316、316L
连接形式：法兰、对夹
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:QU673X-10
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: flange 、wafer
Seat ring :NBR、EPDM
Sealing filler: PTFE
Media: swage、power、 paper pulp
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