Description
Overview of KNKE Electric Vacuum Gate Valve
The KNKE Electric Vacuum Gate Valve is designed with a robust cast-forged structure. It uses dual parallel sealing surfaces for bidirectional sealing, ensuring zero leakage. The sealing surfaces move with minimal friction, which makes operation smoother. Moreover, the valve’s sealing surface automatically compensates for wear, extending its service life. The valve cover includes a vacuum sealing structure that exerts self-expanding pressure to ensure complete isolation from the atmosphere. This design guarantees excellent air-tightness.
This valve is particularly suitable for high-pressure steam, water, and air systems. It operates efficiently under high temperatures, up to 550°C. Additionally, its simple structure and easy maintenance make it a reliable choice for various industrial applications.
Key Features of KNKE Electric Vacuum Gate Valve
- Dual Parallel Sealing: The valve uses a dual parallel sealing system for superior sealing reliability, ensuring durability and long service life.
- Low Friction: The sealing surfaces operate with minimal friction, resulting in easy operation and reduced wear.
- Automatic Wear Compensation: The valve’s sealing surfaces compensate for wear automatically, maintaining optimal performance and prolonging the valve’s lifespan.
- Vacuum Sealing Structure: The valve cover features a vacuum sealing design that isolates the system from the atmosphere, providing excellent air-tightness.
- Corrosion and Wear Resistance: The valve stem undergoes tempering and nitriding treatment, improving its corrosion resistance, anti-scratch properties, and wear resistance.
- High-Performance Flange: The valve uses composite material flange gaskets with high expansion coefficients, ensuring a reliable seal and system isolation.
Application Areas
The KNKE Electric Vacuum Gate Valve is ideal for high-pressure systems that require precise vacuum sealing. It is widely used in steam, water, and air systems within power plants, chemical plants, and other industrial applications. The valve is also highly effective in vacuum isolation for condenser systems and vacuum negative pressure systems in thermal power plants.
Testing Pressure
The KNKE Electric Vacuum Gate Valve is rigorously tested to ensure its high performance under pressure. The following table shows the test pressures:
| Nominal Pressure (MPa) | Test Pressure (MPa) | Shell Strength Test | Upper Seal Test | Seal Test |
| 2.5 | 3.8 | 2.8 | 2.8 | 2.8 |
| 4 | 6 | 4.4 | 4.4 | 4.4 |
| 6.4 | 9.6 | 7 | 7 | 7 |
| 10 | 15 | 11 | 11 | 11 |
Technical Parameters
- Product Name: Electric Vacuum Gate Valve
- Model: NKZK-941
- Nominal Diameter: DN50 to DN600
- Structure: Wedge Gate Design
- Nominal Pressure: 1.6 MPa to 16 MPa
- Connection Type: Flanged
- Operating Temperature: ≤ 550°C
- Drive Type: Electric Control (Integrated Electric and Manual)
- Body Material: Cast Steel, Stainless Steel, Alloy
- Manufacturing Standard: GB, DIN, API, ANSI
- Applicable Media: Water, Steam, Air
- Brand: KNKE
KNKE’s Electric Vacuum Gate Valve is engineered for optimal performance in high-pressure systems. Featuring reliable sealing, low friction, and automatic wear compensation, this valve is ideal for applications in steam, water, and air systems. Its vacuum-sealing structure ensures effective isolation and guarantees air-tightness. With rigorous testing and durable design, it is a dependable choice for industrial applications, including power plants and chemical processing.