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Home > Ceramic-lined Steel Valves > DN300 Manual Operate Ceramic Lined Knife Gate Valve
DN300 Manual Operate Ceramic Lined Knife Gate Valve
DN300 Manual Operate Ceramic Lined Knife Gate Valve
DN300 Manual Operate Ceramic Lined Knife Gate Valve
DN300 Manual Operate Ceramic Lined Knife Gate Valve
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DN300 Manual Operate Ceramic Lined Knife Gate Valve
DN300 Manual Operate Ceramic Lined Knife Gate Valve
DN300 Manual Operate Ceramic Lined Knife Gate Valve
DN300 Manual Operate Ceramic Lined Knife Gate Valve

DN300 Manual Operate Ceramic Lined Knife Gate Valve

Customization: Available
Media: Gas
Temperature: Ordinary Temperature
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Product Description

📊 Basic Specifications
Type
Straight-through
Material
Carbon Steel
Connection Form
Flange
Pressure
Ordinary Temperature
Actuator
Manual
Seal Surface
Parallel Gate Valve
Diameter
DN50-1200mm
Working Pressure
0.6-1.6MPa
Warranty
12 Months
HS Code
84818040
📝 Product Description

DN300 Manual Operate Ceramic Lined Knife Gate Valve

This gate valve is suitable for opening and closing or adjusting the flow of various wear and corrosive slurry and particle pipelines in power plants, mines, papermaking, metallurgy, chemical industries, etc. The nominal pressure is 0.6-1.6MPa, and the temperature is -40ºC-1000ºC.

DN300 Ceramic Lined Knife Gate Valve 1 DN300 Ceramic Lined Knife Gate Valve 2
⚙️ Technical Features
  • Flow Design: Fully circular straight channel design prevents slag or jamming. The valve plate features a knife-edge shape for cutting fiber, pulp, and wood pulp.
  • Precision Casting: Valve body and packing culvert are precision castings (WCB, 304, 316, 316L, 2Crl3). Sealing utilizes graphite packing and PTFE.
  • Self-Centering: 5 supporting points ensure the valve plate does not deviate under back pressure.
  • Drive Options: Compatible with handwheel, sprocket, hydraulic, pneumatic, and electric actuators.
  • Replaceable Seals: Ceramic and soft seal seats can be disassembled and replaced, reducing maintenance costs.
  • Applications: Fly ash, gold ore powder, tailings, paper pulp, dust, sewage, sedimentation tanks, coal slime, and more.
📋 Standards & Dimensions
Standard Type Reference Code
Design and manufactureJB/T8691-1998
Structure lengthGB/T15188.2-94
Flange connectionGB/T9113.1-2000 / JB/T79-94
Test and acceptanceGB/T13927-92
Valve Structure and Dimensions
📸 Installation Feedback
Feedback 1 Feedback 2 Feedback 3
❓ Frequently Asked Questions
1. What materials are used for the valve body?
The valve body is made of high-quality Carbon Steel, but can also be customized with Stainless Steel (304, 316, 316L) or Heat-resistant steel depending on user needs.
2. What are the main applications for this knife gate valve?
It is ideal for handling wear and corrosive slurry, fly ash, ore powder, paper pulp, and industrial wastewater in power plants, mines, and chemical industries.
3. Can the sealing parts be replaced?
Yes, the ceramic seal and soft seal seats are designed to be disassembled and replaced easily after wear, which significantly lowers long-term maintenance costs.
4. What is the working pressure and temperature range?
The valve supports a nominal pressure of 0.6-1.6MPa and can operate in temperatures ranging from -40ºC up to 1000ºC.
5. What drive options are available for operation?
The valve can be equipped with manual handwheels, sprocket chains, or automated systems including hydraulic, pneumatic, and electric actuators.
6. How does the circular straight channel design benefit operation?
The design ensures there is no slag accumulation or jamming. The knife-edge plate effectively cuts through fibers and soft materials for a perfect seal.

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