dark rok pneumatic knife gate valve

暗杆式气动刀闸阀是闸板埋在阀体内腔*与外界环境隔绝的一种阀门，它适合与那些安装在污水池底下阀体浸泡在液体里的管道，如果不把闸板与外界环境隔离，那么闸板就很快会被外界环境所腐蚀，影响了阀门使用寿命。其密封结构是通过闸板关闭下移直到闸板底部斜面与阀体下锲块压紧使得闸板贴紧阀座密封面，从而达到了密封效果。此阀门配备伞齿轮操作启闭轻松灵活；此阀门适用于水利工程、地下管道工程等领域。汽缸配三连件，电磁阀，等配件可实现远程控制。

Dark rod knife gate valve with disc buried in the body cavity is compley isolated from the external environment, it is suitable for pip which is installed in the swage pool and body is immersed in the liquid . If disc is not isolated from external environment ,disc will be corrupted immediay , so it will affects life of the valve. The seal structure is that gate moves down till the bottom of the ramp compress carve blocks of the body to make gate compresses the sealing of the seat to achieve sealing effect. Equipped with bevel gear ,it's easy to to open and close .This kind of valve is suitable for water conservancy ,underground pipe engineering ,etc. It can be remote controlled for cylinder ,FRL ,solenoid ,etc .

产品型号：QYZ673H-10C、QY6Z73X-10C、QYZ673W-10P

外型结构:凸耳、梅花、圆型

公称通径范围：DN50-DN1600

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

堆焊2Cr13、不锈钢、硬质合金

填料密封：含油四氟盘根

适用介质：污水、粉体颗粒、纸浆、矿浆、煤渣

Model:QYZ673H-10C、QYZ673X-10C、QYZ673w-10p

Exterior structure: lugged、 plum、round

Nominal diameter :DN50-DN1600

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