Product Description
Knife Gate Valve
Knife Gate Valves, or simply
knife valves, are specialized valves designed to handle thick liquids, fibrous materials like pulp, or gases. They use a thin, blade-shaped gate to control the flow, moving perpendicular to the flow direction. When closed, the two sealing surfaces of the gate create a wedge, enabling a secure shut-off for enhanced control in demanding applications.
Product Parameters
Structure and Sealing Options:
- Valve Body: Features a cavity-free design. The gate slides within a side guide groove and presses against the valve seat to create a reliable seal.
- Bidirectional Sealing: The O-shaped valve seat enables bidirectional sealing, with options for rigid or elastic wedge gate to further enhance sealing effectiveness.
- Self-Sealing: Primarily seals with medium pressure, although an external force may be required for forced sealing in some applications.
- Installation: Recommended for vertical pipeline setups.
Product Features
- Control Flexibility: Operable locally or remotely, with options for customizable position display and centralized control.
- Lightweight Design: The carbon steel body is 20%-30% lighter than traditional gate valves, making installation and maintenance more manageable.
- Enhanced Sealing and Efficiency: Optimized for effective pipeline closure, minimizing leakage and boosting production efficiency.
- Material Durability: Sealing surfaces are crafted from wear-resistant, corrosion-resistant ceramic, which extends valve life and improves cost-effectiveness.
Specification
Nominal Pressure
(MPa) |
Test Pressure(MPa) |
Working Temperature
ºC |
Suitable Medium |
| Shell |
Seal |
| 1.0 |
1.5 |
1.1 |
Rubber seal ≤ 80ºC |
Syrup, pulp, sewage, coal slurry, ash, slag and other mixtures. |
| 1.6 |
2.4 |
1.8 |
Metal seal ≤ 425ºC |
Material
| Body, Bonnet |
Disc |
Stem |
Sealing surface |
Stainless steel
Carbon steel
Gray cast steel |
Stainless steel
Carbon steel |
Stainless steel |
NBR
PTFE
Stainless steel
Hard alloy |
Applications
Knife gate valves are essential for handling challenging media in a wide range of industrial applications, providing precision flow control, durability, and reliability in critical operations.
FAQ
FAQ
What' s your products range?
Knife gate valve, gate valve, globe valves, check valves, ball valves, butterfly valves, slurry valves, etc.
What information do you need if I want to inquiry?
The valve type, size, pressure, temperature, material, connection type, operation etc.
Do you have stock products?
Yes, we have half finish products for normal type, normal material in stock.
How long is your delivery time?
Usually 15-45 days, it is according to quantity. If custom-made products, shall be longer, please confirm with us.
How long is your warranty of your valves and flanges and pipe fittings?
Usually 1 Year must be using by right way.
Why Customers Choose You?
a.Technology:Coated Sand ensure good looking appearance,Resin Sand Environmental
b.Sealing:Graphite Packing and Gasket, details of every part of the valve treatment
c.Annealing:Ensure the valve body is not easy to lose shape, increase using years.
d.Cutting: Robot cutting, ensure the quality and evenness and good looking.
e.Feedback: Very good feedback from our customers.
Contact us
Mr. Kevin Liu
Hebei Minerco Machinery & Equipment Co.,Ltd
Add: No.409,Caizhi Zhongxin,Fuxing Road,Baoding,Hebei,China.
Web: minercos.en.made-in-china.com
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