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KF (QF) HV Centering Rings (Al)

KF (QF) HV Centering Rings (Al)

KF (QF) HV Centering Rings (Al)

KF (QF) HV Centering Rings (Al) are essential components in vacuum systems, particularly for maintaining precise flange alignment and providing a reliable seal. Manufactured by TFM, these centering rings are made from high-quality aluminum, offering both strength and lightweight properties ideal for ultra-high vacuum (UHV) applications.

What are KF (QF) HV Centering Rings (Al)?

These centering rings are designed to be used with KF (QF) vacuum flanges to ensure that the flanges are properly aligned, facilitating a secure, leak-tight seal. The aluminum construction provides excellent corrosion resistance, making them suitable for high-vacuum environments that demand durability and consistent performance. These rings are highly effective in creating clean, stable connections between components in UHV systems.

Key Features of KF (QF) HV Centering Rings (Al)

  • Lightweight and Durable Aluminum Construction: Made from aluminum, these centering rings offer a combination of strength and lightweight properties. Aluminum’s resistance to corrosion makes it an excellent choice for use in demanding environments.

  • Leak-Tight Sealing: These rings ensure precise sealing between KF (QF) flanges, preventing any loss of vacuum pressure and safeguarding the system against leaks.

  • Compatible with Various Flange Sizes: KF (QF) HV Centering Rings (Al) are compatible with a wide range of KF flanges, including KF10, KF16, KF25, and KF40, making them versatile for different system configurations.

  • Enhanced Vacuum Performance: The centering rings help maintain vacuum integrity, minimizing contamination and ensuring long-term performance under extreme conditions.

Benefits of Using KF (QF) HV Centering Rings (Al)

  1. Efficient Alignment: The centering rings ensure precise flange alignment, which is crucial for maintaining the performance of vacuum systems.

  2. Corrosion Resistance: The aluminum material ensures these rings stand up to the challenges of high-vacuum environments, offering durability and long-lasting performance.

  3. Improved Vacuum Sealing: These rings create a reliable, leak-tight seal, which is crucial for systems where vacuum pressure needs to be maintained.

  4. Versatility: Due to their compatibility with various KF flange sizes, these centering rings can be used in a wide range of vacuum systems, including semiconductor equipment, vacuum pumps, and laboratory instrumentation.

Applications of KF (QF) HV Centering Rings (Al)

  • Vacuum Chambers: KF (QF) HV Centering Rings (Al) are commonly used in vacuum chambers to create a secure connection between chamber components.

  • Semiconductor Processing: In semiconductor manufacturing, these rings ensure proper alignment and sealing in high-precision vacuum systems.

  • Vacuum Pumps: The centering rings are essential for ensuring that vacuum pumps maintain proper seal integrity, allowing for consistent vacuum levels.

  • Laboratory and Research: These rings play a crucial role in vacuum systems used for scientific experiments and analytical instrumentation, where maintaining a clean, stable environment is essential.

Ordering Table

KF (QF) HV Centering Rings (Al)

Drawing Flange OD Dim A Dim B O-Ring Material Part Number
Tooltip KF10 0.37 0.47 Buna-N QF10-050-ARB
Tooltip KF16 0.64 0.67 Buna-N QF16-075-ARB
Tooltip KF25 0.93 1.03 Buna-N QF25-100-ARB
Tooltip KF40 1.51 1.61 Buna-N QF40-150-ARB
Tooltip KF50 1.95 2.05 Buna-N QF50-200-ARB
Tooltip KF10 0.37 0.47 Fluorocarbon QF10-050-ARV
Tooltip KF16 0.64 0.67 Fluorocarbon QF16-075-ARV
Tooltip KF25 0.93 1.03 Fluorocarbon QF25-100-ARV
Tooltip KF40 1.51 1.61 Fluorocarbon QF40-150-ARV
Tooltip KF50 1.95 2.05 Fluorocarbon QF50-200-ARV

Accessories Table

Description For VacuCADSM Part Number
O-Ring, KF10, Buna-N QF10 Centering Ring N/A O-B312
O-Ring, KF10, Fluorocarbon QF10 Centering Ring N/A O-V312
O-Ring, KF16, Buna-N QF16 Centering Ring N/A O-B314
O-Ring, KF16, Fluorocarbon QF16 Centering Ring N/A O-V314
O-Ring, KF25, Buna-N QF25 Centering Ring N/A O-B320
O-Ring, KF25, Fluorocarbon QF25 Centering Ring N/A O-V320
O-Ring, KF40, Buna-N QF40 Centering Ring N/A O-B326
O-Ring, KF40, Fluorocarbon QF40 Centering Ring N/A O-V326
O-Ring, KF50, Buna-N QF50 Centering Ring N/A O-B330
O-Ring, KF50, Fluorocarbon QF50 Centering Ring N/A O-V330
N/A APMB

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FAQ

Tube fittings are designed for tubes (measured by outside diameter and wall thickness) used in high-pressure and instrumentation applications, whereas pipe fittings are for pipes (identified by nominal pipe size) primarily used in fluid transport.

 

Common valve types include ball valves, gate valves, check valves, butterfly valves, and globe valves. Each serves a specific function—from quick shutoff (ball/gate valves) to flow regulation (globe valves).

 

  • For tubing, measure the outside diameter; for pipes, refer to the nominal pipe size (using conversion charts if needed). Always match the valve or fitting size to your pipe’s dimensions and flow requirements.

  • Frequently used thread types include NPT (National Pipe Tapered), BSP (British Standard Pipe), and UNC, along with slip-fit options that rely on compression or fusion rather than threads.

Interchangeability depends on manufacturer specifications and certification. Always verify compatibility via manufacturer guides or certified interchangeability charts.

 

  • A coupling is a short, straight fitting used to join two pipes or tubes. It provides a secure, leak-tight connection and can sometimes serve to extend or repair piping runs.

Consider valve type, pressure and temperature ratings, material compatibility with your fluid, actuation method (manual or automatic), and maintenance requirements.

 

  • Valves regulate flow by opening, closing, or partially obstructing the pathway. Their mechanisms (such as the rotation of a ball or the linear movement of a gate) determine the speed and precision of flow control.

  • A flange is a flat, circular component used to connect pipes, valves, or other equipment. Bolted together with gaskets, flanges provide a secure, leak-proof joint that facilitates both assembly and maintenance.

  • Manual valves require physical operation via handles or levers, whereas actuated valves use mechanisms—pneumatic, electric, or hydraulic—to open and close automatically or remotely.

  • Issues include leaks caused by improper installation, over-tightening, degraded seals, material incompatibility, and fatigue from repeated cycling. Regular inspection and proper installation practices help mitigate these problems.

Regular maintenance involves periodic inspections, cleaning or replacing worn seals, ensuring proper torque during installation, and adhering to manufacturer guidelines and local plumbing codes to preserve system integrity.

 

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