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5-way Crosses (ISO-K HV)

5-way Crosses (ISO-K HV)

5-Way Crosses (ISO-K HV): High-Vacuum Connectivity with Optimized Port Versatility

5-Way Crosses (ISO-K HV) from TFM are precision-fabricated vacuum components that provide five orthogonally positioned ISO-K flange ports in a single, compact structure. Designed for use in high-vacuum (HV) systems, these crosses offer flexible multi-port access for integrating pumps, gauges, valves, feedthroughs, and chamber connections.

Constructed from high-grade 304L stainless steel tubing and built to meet ISO standards for Large ISO flanges, these 5-way crosses feature ISO-K clamp-style flanges that allow fast and secure assembly using centering rings, elastomeric o-rings, and quick clamps. Their geometry is ideal for systems requiring maximum component integration within a confined footprint.

Key Features of 5-Way Crosses (ISO-K HV):

  • 304L Stainless Steel Construction
    Offers excellent strength, corrosion resistance, and thermal stability—ensuring compatibility with aggressive gases and high-vacuum bakeout conditions.

  • Five ISO-K Flanged Ports
    All five ports are machined to ISO-K standards, enabling universal compatibility with ISO hardware and accessories, and supporting vacuum seals down to 10⁻⁸ Torr.

  • Efficient Multidirectional Configuration
    The 5-port geometry provides a central connection hub with multiple access points—ideal for attaching pumps, sensors, gas inlets, and chamber extensions.

  • Vacuum-Ready Finish
    All welds are helium-leak tested and internally cleaned for vacuum compatibility, minimizing contamination and outgassing.

  • Standard and Custom Sizes
    Available in ISO standard sizes such as ISO63, ISO100, ISO160, and ISO200, with the option for custom flange sizes, tube lengths, and port orientations tailored to your system design.

Typical Applications of ISO-K HV 5-Way Crosses:

  • Pump and instrumentation hubs in HV chambers

  • Gas distribution or exhaust branching

  • Integration of viewports, pressure transducers, and feedthroughs

  • Modular vacuum system prototyping or expansion

  • Central junction nodes in UHV-compatible research setups

TFM also supplies all necessary ISO-K compatible hardware including aluminum/stainless clamps, FKM or Buna o-rings, centering rings, and blank or adapter flanges to ensure full functionality from installation to operation.

In summary, 5-Way Crosses (ISO-K HV) are ideal for engineers and system designers seeking compact, multi-port solutions in high-vacuum system builds. Their ISO-K flange design, robust stainless steel construction, and configuration flexibility make them indispensable in both industrial and laboratory vacuum applications.

Ordering Table

Flange Size/OD Type Flange Material Drawing Nominal Tube OD Dim A Part Number
ISO63-K (3.74" OD) Cross, 5-Way 304L SS Tooltip 2-1/2 4.00 QF63-5XK
ISO80-K (4.33" OD) Cross, 5-Way 304L SS Tooltip 3 3.50 QF80-5XK
ISO100-K (5.12" OD) Cross, 5-Way 304L SS Tooltip 4 5.12 QF100-5XK
ISO160-K (7.09" OD) Cross, 5-Way 304L SS Tooltip 6 6.31 QF160-5XK
ISO200-K (9.45" OD) Cross, 5-Way 304L SS Tooltip 8 7.25 QF200-5XK
ISO250-K (11.42" OD) Cross, 5-Way 304L SS Tooltip 10 9.75 QF250-5XK

 

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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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