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NKP40

Pneumatic Knife Gate Valve

No groove design, bidirectional sealing structure, adopting an integral structure including valve body, gate plate, and U-shaped sealing strip.

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    Pressure Range

    ○ DN50-DN100         16bar

    ○ DN125-DN200       10bar

    ○ DN250-DN400       7bar

    ○ DN450-DN550       5bar

    ○ DN600-DN700       3bar

    ○ DN800-DN900       2bar

    ○ DN1000-DN1400   1bar


    Parameter

    ○ Connection form: wafer, plum blossom

    ○ Switch form: Handwheel, Turbo, Pneumatic, Electric, Hydraulic, Electro Hydraulic, Chain Wheel Disk

    ○ Valve body material: GGG40

    ○ Gate material: F55, F532205, SS310, SS316L, SS316, SS304

    ○ Sealing material: NBR, EPDM

    ○ Packing: aramid, high water-based, PTFE, rubber, graphite

    ○ Applicable media: Suitable for mud, urban sewage treatment, sugar factories, powders, papermaking, pharmaceuticals, chemicals, food and other fields


    Features

    ○ The bottom of the gate is designed with a diagonal angle

    ○ Wedges on both sides of the valve body

    ○ The above two characteristics ensure that the gate plate plays a limiting role when it is closed, effectively increasing the service life of the sealing ring

    ○ Two type new bracket, increasing the strength of the bracket

    ○ Valve body with flow guide design to prevent fluid from being trapped in the valve chamber

    ○ PTFE limit block ensures that the gate does not come into contact with the valve body, extending the service life of the gate


    Performance

    ○ No groove design, bidirectional sealing structure, adopting an integral structure including valve body, gate plate, and U-shaped sealing strip. The left and right sides of the valve body and the bottom of the middle chamber are equipped with grooves and elastic U-shaped sealing strips.

    ○ When closed, the gate moves downwards, and the bottom edge of the gate contacts the sealing strip, compressing the sealing strip into the groove to achieve sealing between the valve body and the gate.

    ○ When the gate valve is opened, it moves upward and the bottom edge of the gate valve separates from the sealing strip. The sealing strip bounces up and the groove is flat, which can prevent the medium sediment from accumulating in the groove of the valve body during the use of the knife gate valve.

    ○ Not easy to block, no residue, easy to clean pipeline, thus effectively improving the sealing effect of knife gate valve and preventing leakage when the valve is closed.


    Application

    ○ Remote automatic cutoff control of coarse pulp conveying pipeline in papermaking and pulp production section

    ○ Pneumatic switch valve for high concentration slurry pipeline at the outlet of fiber separator

    ○ Automatic sewage discharge device for white water or black liquid discharge pipe of pulp washing system

    ○ Pneumatic sealed gate valve for frequent opening and closing of slurry tower inlet and outlet pipelines

    ○ Remote pneumatic cut-off control of slag discharge pipe at the bottom of chemical pulp reaction kettle


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