Description
Buy Knife Gate Valve Gear Operated 1.0/1.6 MPa WCB Flanged Industrial Type
The VALVEHU Gear-Operated Knife Gate Valve is a heavy-duty industrial valve engineered for reliable isolation in slurry, wastewater, ash, pulp, and chemical processing systems. Designed with a robust gearbox actuator, this flanged gate valve ensures smooth operation even under tough conditions and large diameters up to DN2000.
Built to handle nominal pressures of 1.0 MPa and 1.6 MPa, it offers excellent sealing integrity with soft or metal seat options. Body materials include WCB (carbon steel) and stainless steel, giving it high corrosion and wear resistance, making it suitable for aggressive and abrasive media. Its sealing surface options such as rubber, PTFE, and hard alloy ensure compatibility with both high-temperature and slurry-loaded flows.
With flanged ends conforming to PN10 dimensions and a wide range of sizes from DN50 to DN2000, this valve is ideal for both retrofit and new installation scenarios. Its gearbox-operated mechanism allows precise manual control over large valves with minimal effort, while enhancing reliability in intermittent shut-off applications.
Each component is carefully selected to ensure performance and durability: the stem is stainless steel, the gate is available in both stainless and carbon steel, and bonnet and body are constructed from durable materials for industrial longevity.
Whether you’re managing pulp lines, handling coal slurry, or operating in wastewater plants, this gear knife gate valve provides dependable shut-off and long operational life. For consultation or to explore other industrial valves tailored to your application, contact the experienced team at VALVEHU in China. Our valve experts are ready to assist you in choosing the ideal solution for your flow control needs.
Technical Specifications
- Valve Type: Knife Gate Valve
- Operation: Gear Operated
- Pressure Rating: 1.0 MPa and 1.6 MPa
- Body Material: Carbon Steel or Stainless Steel
- Connection: Flanged (PN10)
- Size Range: DN50 to DN2000
- Sealing Surface: Rubber, PTFE, or Hard Alloy
- Max Temp: Up to 425°C
- Application Media: Slurry, ash, sewage, pulp, chemical mix
- Design Standard: Industrial heavy-duty gearbox-driven shut-off
Main Performance Range
| Nominal Pressure (MPa) | Shell Test Pressure (MPa) | Seal Test Pressure (MPa) | Working Temperature (°C) | Applicable Media |
|---|---|---|---|---|
| 1.0 | 1.5 | 1.1 | Rubber Seat ≤ 80°C | Sugar slurry, paper pulp, sewage, coal slurry |
| 1.6 | 2.4 | 1.8 | Metal Seat ≤ 425°C (Hard Sealing) | Sugar slurry, paper pulp, sewage, coal slurry, ash, mixed slurry |
Main Component Materials
| Body & Bonnet | Gate | Stem | Sealing Surface |
|---|---|---|---|
| Stainless Steel, Carbon Steel | Carbon Steel, Stainless Steel | Stainless Steel | Rubber, PTFE, Stainless Steel, Hard Alloy |
Main Connection Dimensions for 1.0 / 1.6 MPa Valves (Unit: mm)
| DN | L | D | D1 | D2 | D0 | N–Th | d | H1 |
|---|---|---|---|---|---|---|---|---|
| 50 | 48 | 165 | 125 | 99 | 180 | 4–M16 | Ø18 | 292 |
| 65 | 48 | 185 | 145 | 118 | 200 | 4–M16 | Ø18 | 320 |
| 80 | 51 | 200 | 160 | 132 | 200 | 8–M16 | Ø18 | 348 |
| 100 | 51 | 220 | 180 | 156 | 240 | 8–M16 | Ø18 | 395 |
| 125 | 57 | 250 | 210 | 184 | 260 | 8–M16 | Ø18 | 450 |
| 150 | 57 | 285 | 240 | 211 | 280 | 8–M20 | Ø23 | 504 |
| 200 | 70 | 340 | 295 | 266 | 300 | 8–M20 | Ø23 | 617 |
| 250 | 70 | 395 | 350 | 319 | 320 | 12–M20 | Ø23 | 758 |
| 300 | 76 | 445 | 400 | 370 | 350 | 12–M20 | Ø23 | 857 |
| 350 | 76 | 505 | 460 | 429 | 400 | 16–M20 | Ø23 | 946 |
| 400 | 89 | 565 | 515 | 480 | 450 | 16–M24 | Ø27 | 1023 |
| 450 | 89 | 615 | 565 | 530 | 500 | 20–M24 | Ø27 | 1091 |
| 500 | 114 | 670 | 620 | 582 | 500 | 20–M24 | Ø27 | 1148 |
| 550 | 114 | 725 | 680 | 638 | – | 20–M27 | Ø30 | Gear |
| 600 | 114 | 780 | 725 | 682 | – | 20–M27 | Ø30 | Gear |
| 700 | 127 | 895 | 840 | 794 | – | 24–M27 | Ø30 | Gear |
| 800 | 127 | 1015 | 950 | 901 | – | 24–M30 | Ø30 | Gear |
| 900 | 127 | 1115 | 1050 | 1001 | – | 28–M30 | Ø30 | Gear |
| 1000 | 149 | 1230 | 1160 | 1112 | – | 28–M33 | Ø30 | Gear |
| 1100 | 149 | 1340 | 1260 | 1220 | – | 28–M33 | Ø30 | Gear |
| 1200 | 156 | 1455 | 1380 | 1328 | – | 32–M36 | Ø30 | Gear |
| 1350 | 171 | 1630 | 1540 | 1480 | – | 36–M39 | Ø30 | Gear |
| 1400 | 171 | 1675 | 1590 | 1530 | – | 36–M39 | Ø30 | Gear |
| 1500 | 198 | 1795 | 1705 | 1640 | – | 40–M39 | Ø30 | Gear |
| 1600 | 198 | 1915 | 1820 | 1750 | – | 40–M45 | Ø30 | Gear |
| 1800 | 219 | 2115 | 2020 | 1950 | – | 44–M45 | Ø30 | Gear |
| 2000 | 250 | 2325 | 2230 | 2150 | – | 48–M45 | Ø30 | Gear |
FAQ
What is the advantage of gear-operated knife gate valves?
Gear operation allows smoother and easier control, especially on large-diameter valves or in high-pressure applications.
Can this valve handle abrasive or corrosive media?
Yes, with hard alloy or PTFE sealing and stainless steel options, it is built for demanding applications like slurry and chemicals.
What connection standard does this valve use?
It uses PN10 flanged ends for secure and standardized pipe connections.
Is this valve suitable for high-temperature services?
Yes, with the correct sealing material, it can operate up to 425°C.
What industries commonly use this type of valve?
Used widely in mining, pulp and paper, chemical plants, wastewater treatment, and power generation.
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