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ASA HV Reducer Full Nipples (Grooved Flanges)

ASA HV Standard Full Nipples (Grooved & Flat Flanges)

ASA HV Standard Full Nipples (Grooved & Flat Flanges): Straight-Line Vacuum Connections with Dual ASA Flange Sealing

ASA HV Standard Full Nipples (Grooved & Flat Flanges) from TFM are high-integrity, straight spool components used for vacuum line extensions and equipment interconnections in high-vacuum (HV) systems. These full nipples are built using premium 304L stainless steel tubing, providing excellent corrosion resistance, mechanical durability, and long-term performance under vacuum conditions.

Each nipple is equipped with two rotatable ASA flanges—one grooved to hold an o-ring, and the other flat to compress against it. This sexed ASA flange configuration ensures secure, repeatable vacuum sealing when mated with compatible ASA components, supporting operation at pressures down to 10⁻⁸ Torr.

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

  • One Grooved Flange + One Flat Flange
    Follows ASA sexed flange design for proper o-ring compression and vacuum sealing. Ideal for joining two ASA components with complementary flange styles.

  • 304L Stainless Steel Construction
    Delivers outstanding performance in chemically aggressive and high-temperature environments commonly found in scientific and industrial vacuum systems.

  • Rotatable ASA Flanges
    Both flanges are rotatable, allowing for flexible alignment during installation, which simplifies assembly in constrained layouts or complex routing.

  • Straight-Line Vacuum Path
    Provides a reliable conduit between two aligned flanges without introducing bends or directional changes—ideal for chamber ports, instrumentation paths, and pump connections.

  • Vacuum-Grade Preparation
    Every ASA HV Standard Full Nipple (Grooved & Flat Flanges) is helium leak tested and cleaned to high-vacuum standards, ready for integration into sensitive environments.

  • Standard and Custom Configurations
    Available in common ASA sizes (4″, 6″, 8″, 10″, 12″), with optional customization in tube length, diameter, wall thickness, and flange configuration upon request.

Applications:

  • Vacuum line extension between chamber and pump

  • Interconnection of ASA flanged equipment or components

  • Foreline or exhaust ducting in HV systems

  • Integration of sensors, valves, or viewports with ASA interface

  • System upgrades requiring ASA standard sealing

TFM also supplies matching ASA o-rings (FKM, Buna-N), bolt kits, grooved or flat flanges, and blank-off flanges for complete system compatibility.

In conclusion, ASA HV Standard Full Nipples (Grooved & Flat Flanges) provide a durable and efficient solution for connecting ASA flanged components in high-vacuum systems. Their precise flange design and robust construction ensure leak-tight operation and ease of installation across a wide range of scientific and industrial applications.

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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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