NKP30

Pneumatic Knife Gate Valve

No groove design, dual bidirectional sealing structure, adopting a split structure including valve body, gate plate, and U-shaped sealing strip. 

Pressure Range

¡ð DN50-DN100         16bar

¡ð DN125-DN400       10bar

¡ð DN450-DN650       8bar

¡ð DN650-DN1000     4bar

¡ð DN1100-DN1400   2bar



Parameter

¡ð Connection form: wafer

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

Valve body material: WCB, CF8, CF8M

¡ð Gate material: F55, F532205, SS310, SS316L, SS316, SS304

¡ð Sealing material: NBR, EPDM

¡ð Packing: aramid, high water-based, PTFE, rubber, graphite

¡ð Applicable medium: Suitable for solid media such as mud, urban sewage treatment, sugar factories, papermaking, pharmaceuticals, chemical products.

Features

¡ð Design of U-shaped valve seat sealing ring

¡ð Split valve body design

¡ð Equipped with PTFE scraper valve body, effectively preventing fluid upward movement when the valve is opened

¡ð Two type new bracket, increasing the strength of the bracket

¡ð No groove design to prevent fluid from staying in the valve chamber

¡ð DN50-DN550 integrated valve seat sealing ring, larger than DN600 is a 2-inch valve seat sealing ring


Performance

¡ð No groove design, bidirectional sealing structure, adopting a split 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.

¡ð 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.

¡ð 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.

¡ð 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

¡ð High sealing cutoff control of bi-directional high-pressure pipelines for ultra concentrated ash slurry in power plants

¡ð Bidirectional pressure zero leakage isolation valve for deep well conveying system of mine tailings

¡ð Double sealing points for safety maintenance of chemical toxic or flammable slurry pipelines

¡ð Key valves for bidirectional isolation of high-risk media in nuclear power or hazardous waste treatment

¡ð Double directional leak proof automatic gate valve for fully enclosed circulation system of papermaking white water


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