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KF (QF) HV Over Pressure Rings

KF (QF) HV Over Pressure Rings

The KF (QF) HV Over Pressure Rings from TFM are essential components designed to protect vacuum systems from the risk of overpressure. These rings provide a secure, reliable sealing solution in ISO-KF vacuum systems, ensuring optimal performance and safeguarding your equipment from potential damage due to pressure variations. Crafted from high-quality materials, these overpressure rings are ideal for use in high-vacuum and high-pressure environments where system integrity must be maintained.

Key Features of KF (QF) HV Over Pressure Rings

  • Protection Against Overpressure: The primary function of the over pressure ring is to act as a safeguard against overpressure conditions, protecting sensitive system components from damage due to excessive pressure.

  • Durable Construction: Made from high-quality materials, these overpressure rings are engineered to withstand extreme pressure and temperature conditions, offering excellent corrosion resistance and long-lasting durability.

  • Leak-Tight Sealing: Designed to integrate seamlessly with KF (QF) flanges, the rings provide a secure, leak-tight seal, ensuring that the vacuum integrity of your system is maintained even under fluctuating pressure.

  • Easy Installation: These overpressure rings are easy to install and work in tandem with KF (QF) flange connections, providing a reliable solution to protect your vacuum system from overpressure damage without the need for additional tools or complex setups.

  • Compatibility: Compatible with a wide range of KF (QF) vacuum flanges, including KF10, KF16, KF25, KF40, and KF50, these overpressure rings provide flexible protection across various vacuum system configurations.

Applications

The KF (QF) HV Over Pressure Rings are designed for use in a variety of high-vacuum applications where overpressure protection is critical, including:

  • Vacuum chambers

  • Semiconductor fabrication

  • Pumping systems

  • Analytical instruments

  • Research laboratories

These overpressure rings are particularly beneficial in applications where fluctuating pressure levels could compromise the integrity of the vacuum system.

Why Choose TFM’s KF (QF) HV Over Pressure Rings?

At TFM, we specialize in providing high-performance vacuum components that ensure the stability and reliability of your systems. Our KF (QF) HV Over Pressure Rings offer exceptional protection against overpressure events while maintaining the leak-tight integrity of your vacuum system. With our commitment to quality and precision, you can trust TFM to deliver the most reliable and durable solutions for your high-vacuum applications.

Ordering Table

Drawing Flange OD Dim A Dim B Dim C Part Number
Tooltip KF16 1.25 1.19 0.146 QF16-075-OPR
Tooltip KF25 1.59 1.53 0.146 QF25-100-OPR
Tooltip KF40 2.25 2.13 0.146 QF40-150-OPR
Tooltip KF50 2.75 2.62 0.154 QF50-200-OPR

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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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