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China Slide Damper Gate Valve Suppliers - Manual Slide Gate Valve Factory for Dry Material Control
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China Slide Damper Gate Valve Suppliers - Manual Slide Gate Valve Factory for Dry Material Control

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Size Range: 6 – 16 in | 50 – 400mm

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Shape: Round / Square

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Operation: Pneumatic, Electric Actuator or Handwheel

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Body Material: Carbon Steel

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Blade Material: Steel

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Description

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Our slide gate valve is designed with a high-quality stainless steel rectangular slide plate, providing efficient control over the flow of dry materials. Manufactured in China, we are proud to be a leading supplier and factory of reliable slide gate valves. With various sizes and shapes available, our valves are perfect for diverse industrial applications, ensuring durability and optimal performance.

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    Product Details

    Product Details

    Slide gate valves are designed to provide an efficient method for controlling the flow. The rectangular blade (gate) inside the valve body is made of thick metal plate and can move horizontally within the valve body. It can completely cut off the flow of the medium or remain in a preset open position to control the flow rate. When the blade is in the open position, powders, granules, flakes, or pellets of bulk material can pass freely through the spool valve. When the blade is in the closed position, it acts as a shut-off valve, completely blocking material flow through a good seal. Furthermore, the spool blade can be adjusted to any position to maintain the desired flow rate.

    ★ Key Features
    • Designed for Tough Media
    • Wide Material Selection
    • Flexible Actuation Method
    ✦ Use and Advantage
    Equipped with a handwheel, the valve can be directly opened and closed by hand. The valve's sealing structure can be divided into soft seal and hard seal structures. The sealing seat adopts a movable structure design, featuring wear resistance and automatic compensation functions, excellent workmanship, compact structure, and longer service life. During the opening and closing of the gate valve, the valve seat and gate plate remain in close contact, ensuring stable opening and closing forces and providing media shut-off characteristics.
    Widely used in metallurgy, mining, building materials, food and other industries, the manual spiral gate valve has a diameter matched to the discharge port; available in square and round styles.
    The advantages of this valve are its groove-free body, preventing media blockage and providing full-diameter flow characteristics, making it suitable for pipeline transportation of powdery and granular media.
    ⚙ Installation & Maintenance Notes
    • Before installation, inspect the valve cavity and sealing surfaces to ensure no dust or sand is present.
    • Tighten all bolts at connection points evenly.
    • Check that the packing area is properly compressed to ensure packing sealing and valve opening flexibility.
    • Before installation, check the valve specifications and confirm that its dimensions and orientation meet requirements.
    • When installing the valve, the user must allow sufficient space for valve actuation.
    • Wiring of the actuator must be performed according to the wiring diagram.
    • The valve must be maintained regularly and must not be squeezed or crushed to avoid affecting sealing performance.
    Specification
    Drawing Information
    📋 Parts & Materials

    No.

    Parts

    Materials

    1

    Body

    Ductile iron EN GJS 500-7/400-15

    2

    Wedge

    Ductile iron EN GJS 500-7/400-15 + EPDM

    3

    Wedge coating

    NBR/EPDM EN 681-1

    4

    Wedge nut

    Copper Alloy

    5

    Stem

    Stainless steel X20Cr13

    6

    Bonnet gasket

    EPDM EN681-1

    7

    Bonnet

    Ductile iron GGG50

    8

    O ring back sealing

    EPDM/NBR

    9

    Stem collar

    EPDM/NBR

    10

    O-ring

    EPDM/NBR

    11

    O-ring

    EPDM/NBR

    12

    Stuffing nut

    Copper Alloy

    13

    Dust guard

    EPDM/NBR

    14

    Hand wheel

    Ductile iron GGG50

    15

    Stem cap

    Ductile iron GGG50
    📐 Dimensions

    DN

    INCH

    L

    ΦA

    ΦB

    50

    2''

    150

    165

    125

    65

    2 1/2''

    170

    185

    145

    80

    3''

    180

    200

    160

    100

    4''

    190

    220

    180

    125

    5''

    200

    250

    210

    150

    6''

    210

    285

    240

    200

    8''

    230

    340

    295

    250

    10''

    250

    405

    355

    300

    12''

    270

    460

    410

    350

    14''

    290

    520

    470

    400

    16''

    310

    580

    525

    450

    18''

    330

    640

    585

    500

    20''

    350

    715

    650

    600

    24''

    390

    840

    770

    700

    28''

    430

    910

    840

    800

    32''

    470

    1025

    950

    900

    36''

    510

    1125

    1050

    1000

    40''

    550

    1255

    1170

    1200

    48''

    630

    1485

    1390
    C B A C1*C1 B1 A1*A1 H1 H N-∅
    ∅200 260 ∅300 200*200 250 300*300 200 200 8-∅11
    ∅220 280 ∅320 220*220 270 320*320 200 200 8-∅11
    ∅240 300 ∅340 240*240 290 340*340 200 200 8-∅13
    ∅260 320 ∅360 260*260 310 360*360 200 200 8-∅13
    ∅280 340 ∅380 280*280 330 380*380 200 200 8-∅17
    ∅300 360 ∅400 300*300 350 400*400 200 200 8-∅17
    ∅320 380 ∅420 320*320 370 420*420 200 200 8-∅17
    ∅340 400 ∅440 340*340 390 440*440 200 200 8-∅17
    ∅400 460 ∅500 400*400 450 500*500 220 220 8-∅17
    ∅440 500 ∅540 440*440 495 550*550 220 220 12-∅17
    ∅500 560 ∅610 500*500 555 610*610 220 220 12-∅17
    ∅540 600 ∅650 540*540 600 650*650 220 220 12-∅17
    ∅600 660 ∅720 600*600 660 720*720 240 240 12-∅20
    ∅650 720 ∅770 650*650 720 770*770 240 240 12-∅20
    ∅700 770 ∅820 700*700 765 820*820 240 240 12-∅20
    ∅750 820 ∅870 750*750 825 870*870 240 240 12-∅20
    ∅800 870 ∅930 800*800 870 930*930 270 270 12-∅20
    Frequently Asked Questions
    Q What types of media are slide gate valves suitable for?
    Slide gate valves are designed for handling powders, granules, flakes, and pellets of bulk material. Their groove-free body design prevents media blockage, making them ideal for pipeline transportation of powdery and granular media in industries such as metallurgy, mining, building materials, and food processing.
    Q What sealing options are available for slide gate valves?
    The valve's sealing structure can be divided into soft seal and hard seal structures. The sealing seat adopts a movable structure design with wear resistance and automatic compensation functions, ensuring stable and reliable shut-off performance throughout the valve's service life.
    Q What actuation methods are available for these valves?
    The valves support flexible actuation methods. They can be equipped with a handwheel for manual operation, allowing the valve to be directly opened and closed by hand. Electric or pneumatic actuators can also be applied — actuator wiring must be performed according to the provided wiring diagram.
    Q What size range is available for slide gate valves?
    Slide gate valves are available in a wide range of sizes from DN50 (2 inches) up to DN1200 (48 inches), covering a broad spectrum of industrial pipeline applications. Both square and round connection styles are available to match various discharge port configurations.
    Q What materials are used in the construction of slide gate valves?
    Key components are made from high-quality materials: the valve body and bonnet are made from ductile iron (EN GJS 500-7/400-15 or GGG50), the stem is stainless steel X20Cr13, sealing elements use EPDM or NBR compounds compliant with EN 681-1, and wear-critical parts such as the wedge nut and stuffing nut are made from copper alloy.
    Q What are the key installation and maintenance requirements?
    Before installation, ensure the valve cavity and sealing surfaces are free of dust and debris. All connection bolts should be tightened evenly, and adequate space must be reserved for valve actuation. The valve should be inspected and maintained on a regular schedule, and must never be subjected to squeezing or crushing forces, as this may compromise sealing performance.

    Product Packaging

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    application 2
    application 3
    application 4
    application 5
    application 6
    01020304

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