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Stainless Steel Knife Gate Valve
Knife Gate Valve
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Stainless Steel Knife Gate Valve

Series: KF-DZF-S

Type: Heavy Body & Resilient Seated

Size: DN50-500mm, NPS 2”-20”

Design Standard: EN 593

Pressure Rating: PN10/PN16/150LB

Certificate: ISO, CE, WRAS, ACS

Sample: Available

Service: OEM & ODM

The Stainless Steel Knife Gate Valve (MSS SP-81) is a unidirectional wafer-type knife gate valve designed for on/off operation in industrial pipelines. Constructed from corrosion-resistant stainless steel, it is well-suited for applications demanding high durability and resistance to corrosive or abrasive media. The beveled knife-edge design allows the gate to easily cut through thick media, ensuring tight shut-off even in fluids containing particles or slurries.

To meet various operational requirements, the following types are available: non-rising stem knife gate valve, wafer knife gate valve, lugged knife gate valve, pneumatic knife gate valve, electric knife gate valve, manual knife gate valve, and bevel gear knife gate valve. The valve features a full-bore stainless steel body with guide claws to prevent clogging, and a gate equipped with a beveled knife edge for cutting through dense media. Key characteristics include a replaceable side-entry seat for easy maintenance and adjustment, a PTFE gate guide to prevent metal galling, and double thrust bearings to minimize operating torque. The stainless steel knife gate valve is primarily used in industries such as water/wastewater treatment, chemical processing, pulp and paper, and other demanding sectors.

    Features

    Body Design

    Integral body with full bore structure

    Seat Design

    Side-entry & Preloaded seat

    Beveled knife edge

    Strong cutting stress and tight sealing

    Leakage Level

    Bubbles-tight sealing with no leakage

    Double thrust bearing

    Operation easy and flexible

    Replaceable Seat Design

    Unidirectional Seal

    Valve Structure

    Outside Screw & Yoke

    Certificates

    ISO9001, CE, WRAS, ACS

    Specifications

    Design Standard

    MSS SP-81

    End Flange Standard

    EN 1092 PN10, ASME B16.5 Class 150

    Face to Face Dimension

    MSS SP-81

    Testing Standard

    API 598

    Temperature

    -20℃~120℃(depends on the sealing material)

    Body Material

    CF8, CF8M, 2205, 2507, etc

    Wedge Material

    Stainless Steel

    Shaft Material

    Stainless Steel

    Seat Material

    EPDM, NBR, PTFE, STL

    Operator

    Handwheel

    Dimension

    Stainless Steel Knife Gate Valve
    Size L PN10 ANSI  150LB H
    Ф D N-Th Ф d Ф D N-Th Ф d
    DN50 48 125 4-M16 18 121 4-5/8"UNC 19 395
    DN65 48 145 4-M16 18 140 4-5/8"UNC 19 436
    DN80 51 160 8-M16 18 153 4-5/8"UNC 19 478
    DN100 51 180 8-M16 18 191 8-5/8"UNC 19 545
    DN125 57 210 8-M16 18 216 8-3/4"UNC 22 630
    DN150 57 240 8-M20 23 242 8-3/4"UNC 22 705
    DN200 70 295 8-M20 23 299 8-3/4"UNC 22 890/1065
    DN250 70 350 12-M20 23 362 12-7/8"UNC 25 1065/1230
    DN300 76 400 12-M20 23 432 12-7/8"UNC 25 1200/1415
    DN350 76 460 16-M20 23 476 12-7/8"UNC 25 1375/1590
    DN400 89 515 16-M24 27 540 16-1"UNC 29 1525/1740
    DN450 89 565 20-M24 27 578 16-1 1/8"UNC 32 1810
    DN500 114 620 20-M24 27 635 20-1 1/8"UNC 32 1950
    DN600 114 725 20-M27 30 750 20-1 1/4"UNC 35 2205

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