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KF (QF) HV Centering Ring with Outer Ring & O-Ring

KF (QF) HV Centering Ring with Outer Ring & O-Ring

KF (QF) HV Centering Ring with Outer Ring & O-Ring

TFM’s KF (QF) HV Centering Ring with Outer Ring & O-Ring is designed to provide precise alignment and a secure, leak-tight seal for ISO-KF vacuum systems. This essential component is engineered to maintain the vacuum integrity of your system, ensuring a reliable connection between flanges in demanding high-vacuum applications. The outer ring and O-ring provide an added layer of sealing and alignment, making it ideal for maintaining stability and preventing contamination.

Key Features of KF (QF) HV Centering Ring with Outer Ring & O-Ring

  • Enhanced Alignment and Sealing: The combination of a center ring, outer ring, and O-ring ensures precise flange alignment, facilitating a leak-tight seal that prevents vacuum loss and contamination in sensitive environments.

  • Durable Construction: Manufactured from high-quality materials, this centering ring offers excellent corrosion resistance and is built to withstand the pressures of high-vacuum systems.

  • Leak-Tight Performance: The O-ring creates a secure and reliable seal between flanges, while the outer ring provides additional support for consistent vacuum integrity, making this component ideal for systems with demanding conditions.

  • Wide Compatibility: Designed to fit a range of KF (QF) vacuum flanges, including KF10, KF16, KF25, KF40, and KF50, this centering ring is adaptable to various system setups and configurations.

  • Easy to Install: The KF (QF) HV Centering Ring with Outer Ring & O-Ring is designed for quick and hassle-free installation, making it easy to integrate into your vacuum system and maintain optimal performance.

Applications

The KF (QF) HV Centering Ring with Outer Ring & O-Ring is essential for use in high-vacuum applications, including:

  • Vacuum chambers

  • Semiconductor processing

  • Pumping systems

  • Analytical instruments

  • Research laboratories

This component ensures reliable performance in systems where vacuum integrity is critical.

Why Choose TFM’s KF (QF) HV Centering Ring with Outer Ring & O-Ring?

At TFM, we specialize in delivering high-performance vacuum components designed for durability and consistent sealing. Our KF (QF) HV Centering Ring with Outer Ring & O-Ring guarantees precise alignment and long-lasting, leak-tight performance, helping you maintain the integrity and efficiency of your vacuum system in demanding conditions.

Ordering Table

Drawing Flange OD Dim A Dim B Dim C O-Ring Material Part Number
Tooltip KF10-KF16 0.63 1.28 0.31 Fluorocarbon QF16-075-SCV
Tooltip KF25 0.98 1.67 0.31 Fluorocarbon QF25-100-SCV
Tooltip KF40 1.57 2.26 0.31 Fluorocarbon QF40-150-SCV
Tooltip KF50 1.97 3.05 0.31 Fluorocarbon QF50-200-SCV

Accessories Table

Description Part Number
Vacuum and Lubricating Grease APMB
Replacement o-ring O-V314
Replacement o-ring O-V320
Replacement o-ring O-V326
Replacement o-ring O-V330
O-Ring, FKM, 18mm ID x 5mm Cross Section, Molded O-V18/5MM
O-Ring, FKM, 28mm ID x 5mm Cross Section, Molded O-V28/5MM
O-Ring, FKM, 42mm ID x 5mm Cross Section, Molded O-V42/5MM
O-Ring, FKM, 2.100" ID x .210" W (ACT) 2-1/8" ID x 3/16" W (NOM) O-V330
Description Part Number

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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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