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ISO-F HV Bored Flanges (Bolted)

TFM’s ISO-F HV Bored Flanges (Bolted) are designed to provide robust, high-performance connections for high-vacuum (HV) systems. These flanges feature bolted fasteners for secure attachment and are specifically engineered to ensure leak-tight seals in critical vacuum applications.

Key Features:

  • Bolted Fasteners: Secure, leak-proof connections using nut and bolt fasteners for high-vacuum reliability.
  • Premium Material Construction: Manufactured from 304L stainless steel for excellent corrosion resistance and durability in harsh environments.
  • Bored Design: The bored center design allows for smooth and efficient gas or fluid flow through the flange, making it suitable for various vacuum applications.
  • Metal Centering Ring & O-Ring Seal: Utilizes the same sealing technology as other ISO flanges, with a metal centering ring and elastomeric o-ring for precise alignment and reliable sealing.
  • Wide Temperature and Pressure Range: These flanges are designed to perform in temperatures ranging from 0°C to 120–180°C and pressures from atmospheric to ~10⁻⁸ torr.
  • Versatile Applications: Ideal for semiconductor manufacturing, aerospace, and laboratory systems that require high-vacuum performance.

TFM’s ISO-F HV Bored Flanges (Bolted) provide a dependable solution for all your high-vacuum sealing needs. Contact us to find the right size for your system or for customized solutions.

Ordering Table

Flange Size/OD Type Flange Material Drawing Nominal Tube OD Bore Counter Bore Thickness Bolt Circle Dia. Bolt Hole Dia. # of Bolt Holes Setback Part Number
ISO63-F (5.12" OD) Bored, Bolt Style 304L SS Tooltip 2-1/2 2.44 2.510 0.47 4.331 0.354 4 0.25 QF63-SWF
ISO63-F (5.12" OD) Bored, Bolt Style 316L SS Tooltip 3 2.756 3.010 0.47 4.331 0.354 4 0.25 QF63-SWF-M
ISO80-F (5.71" OD) Bored, Bolt Style 304L SS Tooltip 3 2.94 3.010 0.47 4.921 0.354 8 0.25 QF80-SWF
ISO80-F (5.71" OD) Bored, Bolt Style 316L SS Tooltip 3-1/2 3.268 3.510 0.47 4.921 0.354 8 0.25 QF80-SWF-M
ISO100-F (6.50" OD) Bored, Bolt Style 304L SS Tooltip 4 3.92 4.010 0.47 5.709 0.354 8 0.25 QF100-SWF
ISO100-F (6.50" OD) Bored, Bolt Style 316L SS Tooltip — 4.016 4.260 0.47 5.709 0.354 8 0.25 QF100-SWF-M
ISO160-F (8.86" OD) Bored, Bolt Style 304L SS Tooltip 6 5.92 6.020 0.63 7.874 0.433 8 0.25 QF160-SWF
ISO160-F (8.86" OD) Bored, Bolt Style 316L SS Tooltip — 6.024 6.280 0.63 7.874 0.433 8 0.25 QF160-SWF-M
ISO200-F (11.22" OD) Bored, Bolt Style 304L SS Tooltip 8 7.88 8.020 0.63 10.236 0.433 12 0.25 QF200-SWF
ISO200-F (11.22" OD) Bored, Bolt Style 316L SS Tooltip — 8.386 8.640 0.63 10.236 0.433 12 0.25 QF200-SWF-M
ISO250-F (13.19" OD) Bored, Bolt Style 304L SS Tooltip 10 9.88 10.020 0.63 12.205 0.433 12 0.25 QF250-SWF
ISO250-F (13.19" OD) Bored, Bolt Style 316L SS Tooltip 10-1/2 10.276 10.530 0.63 12.205 0.433 12 0.25 QF250-SWF-M
ISO320-F (16.73" OD) Bored, Bolt Style 304L SS Tooltip 12-3/4 12.52 12.770 0.79 15.550 0.563 12 0.37 QF320-SWF
ISO320-F (16.73" OD) Bored, Bolt Style 316L SS Tooltip 12-3/4 12.52 12.780 0.79 15.550 0.563 12 0.37 QF320-SWF-M
ISO400-F (20.08" OD) Bored, Bolt Style 304L SS Tooltip 16 15.62 16.020 0.79 18.900 0.550 16 0.37 QF400-SWF
ISO400-F (20.08" OD) Bored, Bolt Style 316L SS Tooltip 16 15.748 16.020 0.79 18.900 0.550 16 0.37 QF400-SWF-M
ISO500-F (24.02" OD) Bored, Bolt Style 316L SS Tooltip 20 19.724 20.020 0.79 22.830 0.550 16 0.37 QF500-SWF-M
ISO500-F (24.02" OD) Bored, Bolt Style 304L SS Tooltip 20 19.62 20.020 0.79 22.830 0.550 16 0.37 QF500-SWF
ISO630-F (29.53" OD) Bored, Bolt Style 316L SS Tooltip 26 25.630 26.020 0.94 28.350 0.550 20 0.50 QF630-SWF-M
ISO630-F (29.53" OD) Bored, Bolt Style 304L SS Tooltip 24 23.81 24.020 0.94 28.350 0.550 20 0.50 QF630-SWF

 

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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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