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ASA HV 6-Way Crosses (grooved & flat flanges)

ASA HV 6-Way Crosses (grooved & flat flanges)

ASA HV 6-Way Crosses (grooved & flat flanges): Multi-Axis Vacuum Sealing with Rotatable ASA Connections

ASA HV 6-Way Crosses (grooved & flat flanges) are advanced high-vacuum components designed and manufactured by TFM using premium 304L stainless steel tubing and ASA-standard flanges. These crosses offer six orthogonally aligned ports and are specifically built for high-vacuum (HV) applications requiring sexed flange sealing and multidirectional access in one integrated component.

Each axis is fitted with a rotatable ASA flange, allowing for greater installation flexibility and precise alignment during system assembly. The flanges come in a combination of grooved and flat styles, enabling reliable sealing using standard ASA-compatible elastomeric o-rings and bolt sets. The grooved flange accommodates the o-ring, while the flat mating flange completes the seal when tightened with appropriate hardware.

Key Features of ASA HV 6-Way Crosses (grooved & flat flanges):

  • 304L Stainless Steel Construction
    Provides excellent resistance to corrosion, chemical attack, and mechanical stress—ideal for demanding vacuum environments in industrial, semiconductor, and research settings.

  • Rotatable ASA Flanges on All Ports
    Each of the six flange interfaces is rotatable to facilitate easy alignment during assembly. This is particularly useful in confined or asymmetric system layouts.

  • Sexed Sealing System (Grooved & Flat Combination)
    Each flange pair employs the ASA-style o-ring seal system: one flange features a machined o-ring groove and the other has a flat face, allowing for secure high-vacuum sealing down to 10⁻⁸ Torr.

  • Support for Reducer Cross Configurations
    TFM can fabricate ASA HV 6-Way Crosses (grooved & flat flanges) in reducer configurations, allowing for seamless transitions between different ASA flange sizes on specific ports.

  • Customization Options Available
    In addition to standard flange diameters (such as 4″, 6″, 8″, 10″, and 12″), TFM offers custom fabrication services for non-standard lengths, flange combinations, and alternate stainless steel grades (e.g., 316L).

Applications of ASA HV 6-Way Crosses (grooved & flat flanges):

  • High-vacuum manifold hubs in complex systems

  • Pump line and gauge distribution in chamber assemblies

  • Diagnostic port expansion for spectroscopy, RGA, or viewport integration

  • Gas input or exhaust routing in multi-directional setups

  • Retrofit expansion of legacy ASA vacuum systems

TFM also provides full hardware support for this component, including ASA HV bolt sets, fluorocarbon (FKM) o-rings, blank flanges, and adapter flanges—allowing full integration into both existing and new ASA-based systems.

In summary, ASA HV 6-Way Crosses (grooved & flat flanges) combine structural reliability, vacuum integrity, and multi-axis connectivity in one robust solution. With their rotatable flange design and support for mixed sealing surfaces, they are ideal for building and expanding high-vacuum platforms with precision and flexibility.

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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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