2、对电动阀门施加管理压力时(2)，压力作用于闸板，迫使它贴近,气动二片式气动调节球阀电动阀门；电动调节球阀执行器阀座上PTFE环，压缩它直到闸板停在钢制阀座上，这样，就形成了双重密封，首先是PTFE对金属密封，然后是金属对金属密封，阀座也被牢固地捡到凹槽,气动隔膜泵PVC球阀zhenglei，在这一点(3)，O形圈阻止任何后部介质流。(如图2),气动隔膜泵PVC气动调节蝶阀泵；,电动调节球阀对夹气动调节球阀新建文章2,改名后按回车；
,电动PVC蝶阀电动PVC球阀；平板电动刀型闸阀的工作原理：双重密封、自动泄压、免维护1、阀门内部压力相当时(1)，闸板处于闭合状态，阀座表面PTFE密封环形成初始密封，每次阀门开或关时，阀座圈能保洁公司闸板两侧(如图1)
平板闸阀的工作原理和产品结构特点
3、阀体压力泄放后，形成进口密封，管道压力作用于进口阀座(4)，使其移向闸板，这时形成PTFE对金属的密封，同时，O形圈(5)与阀座凹槽形成紧密的密封。(如图3),电动对夹球阀新建文章2,改名后按回车；,电动衬氟气动蝶阀展会杂而不精小商贩混迹其中；
平板闸阀的产品结构特点Products design features●塑料球阀体有铸造和焊接两种结构。Cast and weld two structures with the body●阀座采用O形密封圈密封和施加预紧力的浮动阀座结构，使阀门进nsk轴承双向密封；并且该结构的启闭力矩仅为普通阀门的1/2，能达到轻松开、关阀门。The seal ring uses the floating seat,电动PVC蝶阀阀门；ring structure with o-sear ring sealed显示屏 and pre-tightening force applied to have inlet and outlet dual-way sealed,电动对夹球阀电动PVC蝶阀；and the open-close moment,电动软密封蝶阀泵；with this structure is 1/2 that of the,电动对夹球阀阀门；common valves only,able,气动塑料球阀展会杂而不精小商贩混迹其中；to lightly open and close valves.●电动球阀阀座采用密封面上镶嵌PTFE，具有PTFE对金属和金属对金属的双重密封,气动对夹球阀1.灰铸铁，适用于工作温度调节阀在-15~+200℃之间，公称压力PN≤1.6MPa的低压电动硬密封蝶阀阀门，PTFE密封面同时清除闸板脏物的作用，The seat ring uses the sealing face inlaid with PTFE,so,电动法兰球阀电动三片式球阀电动法兰球阀；has dual seals of PTFE to metal and metal to metal,the,电动PVC球阀电动PVC蝶阀；PTFE sealingface also acts as removing the dirt on the wedge disc.●金属对金属密封的阀门，阀体外部设有注油脂结构，油脂通过注脂器、阀座进入阀门密封面，使阀门达到零泄漏。For the valve with the metal to metal seal,there is grease injector outside of it,grease gets into the sealing face through the injector and the seat ring to have the valve up to null leak.●带导流孔阀门的闸板，无论是全开或是全关始终与密封面吻合，密封面得到保护不受介质直接冲刷,气动蝶阀，从而延长使用寿命。The wedge disc of the valve with flow guide hole is always,除湿机zhenglei；fitted with the sealing face,电动PVC球阀阀门；whether in full open or full close,电动三片式球阀球阀；status to have the,电动PVC球阀阀门；sealing face protected without being directly eroded by the medium so as to extend the duration.●阀门在全开时，通道平滑为直线，流阻系数极小，无压力损失，可通毛球清扫管线。When fully,电动塑料球阀；opened,the valves channel is smooth and linear,with an extremely,除湿机zhenglei；small flow resisting coefficient and no pressure loss,and the pipeline can be cleaned with hair-ball through it.●本阀采用带自密封能力的填料结构，无需经常调节，开、关极为轻便,塑料球阀阀门，且密封性可靠，填料函处设有辅助密封油脂注入结构，密封性能绝对可靠,电动对夹球阀水处理、泵阀管道，真正达到零泄漏；解决了通用阀门填料处最容易外漏的蔽病。This valve uses,电动衬氟蝶阀阀门；the packing structure with the,气动蝶阀气动执行器；ability of self-seal,needs no constant,气动三片式球阀展会杂而不精小商贩混迹其中；adjustment,features very light open,气动球阀阀门；and close and areliable seal An assisting sealing grease injection structure is set in the packing to have the sealing,电动对夹球阀新建文章2,改名后按回车；performance absolutely reliable and get atrue null leak,settling the problem,电动PVC球阀电动PVC球阀；for the packing place of,电动PVC蝶阀电动PVC球阀；universal valves to be easiest leak outward.,气动对夹球阀电动衬氟蝶阀；,气动PVC球阀技术；●阀门关闭时能自动卸掉内腔高压电磁阀(详见工作原理图)，保证使用安全。Automatic removal of the high pressure,除湿机zhenglei；in the internal cavity when the valve is about to close(see the working principle diagram)for the details)so as to ensure,气动对夹球阀水处理、泵阀管道；safety.●全封闭结构，防护性能好，可适应全天候要求。Fully sealed显示屏 structure leaves agood protective property,电动对夹球阀电动PVC球阀,suitalbe,气动执行器水力控制阀阀；for the requirement of 24-hour duty.●升降杆阀门设有指示杆或观察窗以表示阀门的启闭情况，旋转杆阀门采用封闭齿轮转动启闭指示机构。An indication rod or,电动塑料球阀；viewing window is set Ascend and descend stemwith the valve to whow the open-close condition,Revolve stem with the valve Use asealed显示屏 gear-driving open-close,气动三片式球阀展会杂而不精小商贩混迹其中；indicating mechansim.●直理式阀门外表面采用环氧煤沥青防腐处理，能与管线同寿命。The external,电动三片式球阀气动执行器；surface of the directly built-in valve is,气动塑料球阀展会杂而不精小商贩混迹其中；corrosion resisting treated with epoxy coal bitumen and can be the same duration as the pipeline.
4、阀门自动泄放多余的压力，当阀体压力大于管道压力时，由于热膨胀，电动球阀对夹球阀skf轴承阀座推向凹槽，阀体内多余的压力在阀座与闸板之间泄放到管道中。(如图4)
电动隔膜泵衬氟蝶阀的工作原理和产品结构特点
