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90° ISO-K HV Radius Elbows

90° ISO-K HV Radius Elbows

90° ISO-K HV Radius Elbows are high-precision components designed for high-vacuum (HV) and ultra-high-vacuum (UHV) systems, ensuring smooth directional changes while maintaining vacuum integrity. These elbows are commonly used in semiconductor processing, research laboratories, and industrial vacuum applications.

Key Features

  • Material: Manufactured from high-quality stainless steel (304L or 316L) for excellent corrosion resistance and durability.

  • Optimized Bend Radius: Reduces turbulence and pressure loss, ensuring smooth flow within vacuum and gas transport systems.

  • ISO-K Flange Compatibility: Designed to integrate seamlessly with ISO-K flanges, providing easy assembly and disassembly.

  • Leak-Tight Welded Construction: Ensures minimal outgassing and high structural strength, making it ideal for HV/UHV applications.

  • Standard and Custom Sizes: Available in various diameters, thicknesses, and configurations to suit specific system requirements.

Applications

  • Vacuum Systems: Used in HV/UHV chambers, semiconductor fabrication, and thin film deposition.

  • Research & Laboratory Equipment: Applied in particle accelerators, space simulation chambers, and material science experiments.

  • Industrial Piping: Used in high-purity gas transport and chemical processing industries.

  • Aerospace & Defense: Critical for advanced vacuum applications in space and defense research.

Why Choose TFM’s 90° ISO-K HV Radius Elbows?

  • Designed for high-vacuum applications

  • Superior corrosion resistance and long service life

  • Precision manufacturing for leak-tight performance

  • Custom options available upon request

Ordering Table

Flange Size/OD Type Flange Material Drawing Nominal Tube OD Dim A Part Number
ISO63-K (3.74" OD) Elbow, 90 Degree Radius 304L SS Tooltip 2-1/2 4.00 QF63-E90KR
ISO80-K (4.33" OD) Elbow, 90 Degree Radius 304L SS Tooltip 3 4.75 QF80-E90KR
ISO100-K (5.12" OD) Elbow, 90 Degree Radius 304L SS Tooltip 4 6.25 QF100-E90KR
ISO160-K (7.09" OD) Elbow, 90 Degree Radius 304L SS Tooltip 6 9.25 QF160-E90KR
ISO200-K (9.45" OD) Elbow, 90 Degree Radius 304L SS Tooltip 8 12.25 QF200-E90KR
ISO250-K (11.42" OD) Elbow, 90 Degree Radius 304L SS Tooltip 10 15.25 QF250-E90KR

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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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