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6-Way Crosses (ISO-K HV)

6-Way Crosses (ISO-K HV)

6-Way Crosses (ISO-K HV): Multi-Axis Connectivity for Advanced High-Vacuum System Design

6-Way Crosses (ISO-K HV) from TFM are engineered to provide maximum configuration flexibility in high-vacuum (HV) systems by enabling six orthogonal connection ports in a single component. Fabricated from 304L stainless steel tubing and featuring ISO-K compliant flanges, these crosses serve as critical junctions for vacuum chambers, pumps, valves, gauges, or instrumentation in complex system builds.

Designed to conform with ISO standards for Large ISO flange systems, these crosses utilize ISO-K flanges, which are fastened using quick-clamp mechanisms rather than bolted connections. This makes them especially well-suited for modular assemblies, frequent reconfiguration, or rapid service access.

Key Features of 6-Way Crosses (ISO-K HV):

  • 304L Stainless Steel Construction
    Corrosion-resistant, durable, and vacuum-compatible, 304L stainless steel ensures longevity in chemically active and thermally demanding environments.

  • ISO-K Flange Interfaces
    All six ports are equipped with ISO-K flanges, allowing for quick installation with elastomeric o-rings, centering rings, and clamp fasteners—ideal for creating leak-tight seals down to 10⁻⁸ Torr.

  • Six-Port Orthogonal Design
    The symmetrical six-way configuration supports instrumentation, pumping lines, vent ports, and process feeds from multiple angles, improving access and system modularity.

  • Vacuum-Ready Fabrication
    Welded assemblies are helium-leak tested and cleaned to vacuum-grade standards, ensuring outgassing is minimized for consistent high-vacuum performance.

  • Standard and Custom Sizes Available
    TFM provides 6-way crosses in standard ISO sizes—such as ISO63, ISO100, ISO160, and ISO200—with the option to request custom tube lengths, flange combinations (e.g., mixed ISO-K/ISO-F), or alternate port orientations.

Applications of ISO-K HV 6-Way Crosses:

  • Central hubs for high-vacuum chambers or process modules

  • Pumping station manifolds for roughing, turbo, or cryogenic systems

  • Diagnostic and sensor integration platforms in R&D setups

  • Multi-port expansion for gas delivery or exhaust management

  • Beamline distribution nodes in particle physics and photonics

TFM also offers a full selection of ISO-K flange accessories, including quick clamps, elastomeric o-rings, blank flanges, and ISO-compatible valves—ensuring your 6-way cross can be seamlessly integrated into existing or new vacuum architectures.

In summary, 6-Way Crosses (ISO-K HV) offer unmatched versatility and performance for high-vacuum system designers. With ISO-K clamp-style flanges, durable stainless steel construction, and six-axis access, they are ideal for building multi-functional, reconfigurable vacuum assemblies across a wide range of industrial and research applications.

Ordering Table

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

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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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