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ASA HV Standard Full Nipples (Grooved Flanges)

ASA HV Standard Full Nipples (Flat Flanges)

ASA HV Standard Full Nipples (Flat Flanges): Reliable Pipeline Extensions for ASA Grooved Flange Interfaces

ASA HV Standard Full Nipples (Flat Flanges) from TFM are designed to provide straight, durable connections in high-vacuum (HV) systems using the ASA sealing standard. These full-length spools are fabricated from 304L stainless steel tubing and feature two rotatable flat ASA flanges, making them ideal for integration with grooved flange components.

Flat ASA flanges compress against o-ring-retaining grooved flanges to form secure, sexed vacuum seals. This configuration supports flexible assembly and consistent sealing performance in systems operating at pressures as low as 10⁻⁸ Torr, ensuring reliability in demanding scientific and industrial applications.

Key Features of ASA HV Standard Full Nipples (Flat Flanges):

  • Dual Flat ASA Flanges
    Designed to mate with grooved ASA flanges using elastomeric o-rings for repeatable, high-integrity vacuum seals.

  • 304L Stainless Steel Construction
    Offers strong corrosion resistance and mechanical stability, suitable for thermal cycling and chemically reactive HV environments.

  • Rotatable Flanges for Easy Alignment
    Each flange is rotatable to support flexible orientation and simplified installation in tight or complex assemblies.

  • Straight Through Spool Design
    Facilitates uninterrupted vacuum flow between aligned flanged components, ideal for pipeline extension or system modularity.

  • Vacuum-Grade Manufacturing
    Helium leak tested and cleaned for high-vacuum compatibility; suitable for research labs, semiconductor tools, and general HV infrastructure.

  • Available in Standard and Custom Configurations
    Offered in standard ASA flange sizes like 4″, 6″, 8″, 10″, and 12″, with custom tube lengths, wall thicknesses, and flange options available upon request.

Typical Applications:

  • Connecting ASA grooved-flange equipment in HV systems

  • Foreline extensions or straight-through vacuum plumbing

  • Chamber-to-valve or pump interconnections

  • Retrofitting vacuum assemblies with o-ring-sealed flat flange interfaces

  • Research, aerospace, and high-purity process vacuum configurations

TFM also supplies grooved ASA flanges, FKM/Buna-N o-rings, bolt kits, and custom transition fittings to support complete ASA-standard system builds.

In summary, ASA HV Standard Full Nipples (Flat Flanges) provide a robust and adaptable solution for extending vacuum pipelines or joining ASA grooved flange interfaces. Their dual-flat design, stainless steel strength, and vacuum-ready fabrication make them ideal for precision vacuum applications.

Ordering Table

Flange Type Flange Size/OD Drawing Nominal Tube OD Dim A Part Number
Fixed ASA 3 (7.50" OD) Tooltip 4 10.24 AFN07X040L

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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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