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ISO-K HV Full Nipples (Clamped)

ISO-K HV Full Nipples (Clamped)

ISO-K HV Full Nipples (Clamped): Dual-Flanged Tubes for High-Vacuum Line Integration

ISO-K HV Full Nipples (Clamped) from TFM are precision-fabricated vacuum tubing components designed for ISO-standard high-vacuum (HV) systems. Each full nipple features two ISO-K flanges—one on each end—enabling fast and secure integration between pumps, chambers, and instrumentation across modular HV setups.

Manufactured from durable 304L stainless steel, these full nipples are engineered for structural integrity, vacuum compatibility, and corrosion resistance. The ISO-K flanges at both ends allow for easy, clamp-style assembly using centering rings and elastomeric o-rings, supporting pressures as low as 10⁻⁸ Torr.

Key Features of ISO-K HV Full Nipples (Clamped):

  • 304L Stainless Steel Construction
    Delivers robust mechanical strength and resistance to corrosive gases or high-temperature environments often found in research and industrial vacuum systems.

  • Dual ISO-K Flange Ends
    Each full nipple includes two ISO-K flanges, ideal for creating straight-line connections between system components or extending chamber ports.

  • Clamp-Compatible Design
    ISO-K flanges are designed for tool-free, secure assembly using quick clamps, centering rings, and vacuum-rated o-rings, ensuring leak-tight performance and serviceability.

  • Vacuum Clean and Leak-Tested
    Every unit is cleaned for HV service and helium-leak tested to guarantee consistent vacuum integrity and low outgassing during operation.

  • Standard and Custom Configurations
    TFM offers standard lengths and tube diameters for sizes including ISO63, ISO100, ISO160, and ISO200. Custom tube lengths, wall thicknesses, and special alloy options (e.g., 316L SS) are available upon request.

Applications of ISO-K HV Full Nipples:

  • Connecting pumps to HV chambers

  • Extending ISO ports on vacuum tools

  • Foreline and exhaust line construction

  • Modular vacuum manifold development

  • Inline instrumentation paths

TFM also manufactures ISO Half Nipples (single-flanged) and ISO Reducer Nipples (conical or straight transition between different ISO sizes), offering a complete line of ISO flange tubing components. Accessory support includes quick clamps, center rings with Viton® or Buna-N o-rings, and ISO-K blank flanges.

In summary, ISO-K HV Full Nipples (Clamped) offer a flexible, robust solution for ISO flange integration in high-vacuum system design. Their dual-flange construction, stainless steel durability, and ISO-K clamp compatibility make them indispensable for scalable, serviceable vacuum plumbing and chamber connectivity.

Ordering Table

Flange Size/OD Type Flange Material Drawing Nominal Tube OD Bore Overall Length Dim A Part Number
ISO63-F (5.12" OD) Half Nipple, Bolt Style 304L SS Tooltip 2-1/2 2.37 3.94 3.94 QF63-LBF
ISO80-F (5.71" OD) Half Nipple, Bolt Style 304L SS Tooltip 3 2.87 3.94 3.94 QF80-LBF
ISO100-F (6.50" OD) Half Nipple, Bolt Style 304L SS Tooltip 4 3.87 3.94 3.94 QF100-LBF
ISO160-F (8.86" OD) Half Nipple, Bolt Style 304L SS Tooltip 6 5.83 3.94 3.94 QF160-LBF
ISO200-F (11.22" OD) Half Nipple, Bolt Style 304L SS Tooltip 8 7.76 3.94 3.94 QF200-LBF
ISO250-F (13.19" OD) Half Nipple, Bolt Style 304L SS Tooltip 10 9.75 3.94 3.94 QF250-LBF
ISO320-F (16.73" OD) Half Nipple, Bolt Style 304L SS Tooltip 12-3/4 12.42 3.94 3.94 QF320-LBF
ISO400-F (20.08" OD) Half Nipple, Bolt Style 304L SS Tooltip 16 15.62 3.94 3.94 QF400-LBF
ISO500-F (24.02" OD) Half Nipple, Bolt Style 304L SS Tooltip 20 19.62 3.94 3.94 QF500-LBF
ISO630-F (29.53" OD) Half Nipple, Bolt Style 304L SS Tooltip 24 23.5 3.94 3.94 QF630-LBF

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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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