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ASA HV 6-Way Crosses (grooved flanges)

ASA HV 6-Way Crosses (grooved flanges)

ASA HV 6-Way Crosses (grooved flanges): All-Grooved Flange Design for Consistent High-Vacuum Sealing

ASA HV 6-Way Crosses (grooved flanges) from TFM are precision-fabricated components built for demanding high-vacuum (HV) environments, offering six-way connectivity with a uniform sealing interface. Each cross is manufactured from corrosion-resistant 304L stainless steel tubing and features rotatable ASA flanges with grooves on all six ports. This design enables reliable sealing when mated with flat ASA flanges using elastomeric o-rings.

The grooved ASA flanges follow the traditional sexed vacuum sealing method, where the groove accommodates the o-ring and the mating flat flange compresses it to create a vacuum-tight seal. These crosses are particularly suited for setups where consistent grooved interfaces are required across multiple directions for integration with flat-faced chamber ports, valves, or extensions.

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

  • Uniform Grooved ASA Flange Configuration
    All six axes are equipped with rotatable grooved ASA flanges, ensuring compatibility with flat mating flanges and simplifying the use of standard ASA o-ring sealing assemblies.

  • 304L Stainless Steel Construction
    Delivers high structural integrity and corrosion resistance, suitable for both industrial and research-grade high-vacuum systems operating at pressures down to 10⁻⁸ Torr.

  • Rotatable Flange Design
    Enables easier alignment during installation and system integration, especially in tight or complex layouts.

  • Leak-Tight Performance
    Each ASA HV 6-Way Cross (grooved flanges) is helium leak tested and cleaned to vacuum service standards, ensuring reliable sealing and low outgassing.

  • Available in Standard and Custom Sizes
    TFM offers sizes including ASA 4″, 6″, 8″, 10″, and 12″, with options for custom tube lengths, wall thicknesses, or port reducers upon request.

Common Applications:

  • Central distribution hubs in high-vacuum chambers

  • Multi-port gas handling or exhaust systems

  • Pumping, measurement, and diagnostics nodes

  • Retrofit expansions in ASA-standard infrastructure

  • Custom modular vacuum assembly configurations

TFM also supplies the full range of supporting hardware, including ASA bolt sets, fluorocarbon (FKM) o-rings, blank flanges, and adapter flanges, allowing for complete and secure installation with minimal assembly time.

In summary, ASA HV 6-Way Crosses (grooved flanges) provide a consistent, high-integrity sealing solution for advanced vacuum systems. Their all-grooved configuration ensures compatibility with flat ASA flanges, while their stainless steel construction and rotatable design offer long-lasting performance and installation flexibility.

Ordering Table

Flange Size/OD Drawing Nominal Tube OD Part Number
ASA 1 (4.25" OD) Tooltip 1-1/2 AF6C04X15G9R
ASA 1.5 (5.00" OD) Tooltip 2 AF6C05X20G9R
ASA 2 (6.00" OD) Tooltip 3 AF6C06X30G9R
ASA 3 (7.50" OD) Tooltip 4 AF6C07X40G9R
ASA 4 (9.00" OD) Tooltip 4 AF6C09X40G9R
ASA 4 (9.00" OD) Tooltip 6 AF6C09X60G9R
ASA 6 (11.00" OD) Tooltip 6 AF6C11X60G9R
ASA 6 (11.00" OD) Tooltip 8 AF6C11X80G9R
ASA 8 (13.50" OD) Tooltip 10 AF6C13X10G9R
ASA 8 (13.50" OD) Tooltip 8 AF6C13X80G9R
ASA 10 (16.00" OD) Tooltip 10 AF6C16X10G9R

 

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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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