是一种可更换橡胶密封圈的刀闸阀结构，密封原理主要是通过闸板与橡胶密封圈的紧靠，从而达到密封效果，此结构主要特点在于，橡胶密封圈是封套在阀座上的阶梯凹槽内，密封圈由金属压套反锁，使得密封圈与闸板开关密封过程中不会脱落，并且密封圈坏了，可以取下金属压套随意更换橡胶密封圈。使得阀门使用效率大大提高。是一种经济有效的高性能产品。

It's an changeable rubber ring knife gate valves. Seal principle mainly through the gate and rubber seals close to achieve the sealing effect .The main features of this structure is that the rubber ring is in the seat on the envelope ladder groove, the seal is locked by metal pressing sets , making ring sealing will not switch off when processing, and if the seals broken, you can remove the metal press kits replace the rubber ring at random,which improves the valve efficiency greatly . It's a cost-effective, high-performance products.

产品型号：QBZ73X-10C

外型结构:凸耳、梅花、圆型

公称通径范围：DN50-DN1200

公称压力范围：国标、美标、日标、德标、英标                          

材质：铸钢、不锈钢、

闸板材质：2Cr13、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、氟橡胶

填料密封：含油四氟盘根

适用介质：污水、粉体颗粒、纸浆、矿浆糖厂

Model:QBZ73X-10C

Exterior structure: lugged 、   plum、round

Nominal diameter :DN50-DN1200

Nominal pressure:national standard 、American standard 、Japanese standard、German standard 、 British standard

Material:cast steel、stainless steel

Disc:2Cr13、201、304、316、316L

Connection: flange 、wafer

Seat ring :NBR、EPDM、 vition、 2Cr13、stainless steel、hard alloy

Sealing filler: PTFE

Media:swage、power、 paper pulp、ore pulp、cinde