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Idex - Flat-Bottom Fittings - Flangeless Fittings

Flangeless Fittings eliminate the need to flange tubing. This removable and reusable system provides several benefits such as providing flangeless chromatography fittings for observing mixtures and solvents. Flangeless Fittings are easy to use. Just slip the nut and ferrule over the tubing and finger tighten the assembly into your receiving port. Our Flangeless Fitting require minimal downtime because component replacement is quick, taking only a few seconds. Flangeless Fittings systems typically require only one new ferrule at minimal cost when repairing a connection.

Available models

Our Flangeless Ferrules are excellent for connecting most rigid or semi-rigid tubes, including tubing manufactured from fluoropolymers (FEP, PFA, ETFE, ECTFE, etc.), PEEK, or stainless steel. They are easy to use and optimally eliminates the need to flange tubing. 


List of available Flangeless Ferrules

For outer diameter tubing Thread Port Configuration Flat-Bottom Pressure Rating Max Material Colour Option for Pack
2 mm, 2.5 mm M6 or 1/4-28 500 psi/34 bar Genuine Tefzel™ ETFE Resin White (2 mm), Red (2.5 mm)  -
4 mm 5/16-24 500 psi/ 34 bar PCTFE Natural  -
1/16 inches 1/4-28 2000 psi/138 bar Polypropylene Not applicable  -
1/8 inches 1/4-28 500 psi/34 bar Genuine Tefzel™ ETFE Resin Natural, Yellow Pack of 10 units
1/16 inches 1/4-28 2000 psi/138 bar Genuine Tefzel™ ETFE Resin Natural, Blue, Red Pack of 10 units, Red comes in a single unit only
1/16 inches 1/4-28 or 10-32 2500 psi/172 bar Genuine Tefzel™ ETFE Resin Natural  -
1.8 mm M6 or 1/4-28 500 psi/34 bar Genuine Tefzel™ ETFE Resin Green Pack of 10 units
3 mm M6 or 1/4-28 500 psi/34 bar Genuine Tefzel™ ETFE Resin Orange Pack of 10 units
4 mm 5/16-24 250 psi/17 bar Genuine Tefzel™ ETFE Resin Natural Pack of 10 units

Flangeless fittings are excellent replacements for flanged fittings. Our Flangeless Fittings are designed to include both a nut and ferrule for your convenience. They are dependable, easy to use and easy to replace.


List of available Flangeless Fittings

For outer diameter tubing Thread Port Configuration Flat-Bottom Pressure Rating Max Material Head Style Colour Option for Pack
1/8 inches Not applicable Not applicable Delrin (Lock Nut) Not applicable White  -
1/16 inches 1/4-28 2000 psi/138 bar Delrin/Genuine Tefzel™ ETFE Resin Standard Knurl Black/Blue, Purple/Blue, Red/Blue, White/Blue, Cream/Blue, Green/Blue, Blue/Blue  -
1/8 inches 1/4-28 500 psi/34 bar Delrin/Genuine Tefzel™ ETFE Resin Standard Knurl

Black/Yellow, Black/Yellow (Length Style: Short), Red/Yellow, White/Yellow, Cream/Yellow, Green/Yellow, Blue/Yellow

 -
3/16 inches/4 mm 5/16-24 500 psi/34 bar Delrin/Genuine Tefzel™ ETFE Resin Standard Knurl White/Natural  -
1/16 inches 10-32 2000 psi/138 bar PEEK/Tefzel (ETFE) Not applicable Not applicable  -
1/8 inches 5/16-24 500 psi/34 bar PEEK/Tefzel (ETFE) Standard Knurl Natural/Yellow  -
3/16 inches/4 mm 5/16-24 500 psi/34 bar PEEK/Tefzel (ETFE) Standard Knurl Natural/Blue  -
1/16 inches 5/16-24 2000 psi/138 bar PEEK/Tefzel (ETFE) Standard Knurl Natural/Blue  -
1/16 inches 1/4-28 2000 psi/138 bar PEEK/Tefzel (ETFE), PPS/Tefzel (ETFE) Headless Knurl Natural/Blue  -
1/8 inches 1/4-28 500 psi/34 bar PEEK/Tefzel (ETFE) Standard Knurl Natural/Yellow  -
1/16 inches 1/4-28 2000 psi/138 bar PEEK/Tefzel (ETFE) Standard Knurl Natural/Blue  -
1/8 inches 1/4-28 500 psi/34 bar Polypropylene/Tefzel (ETFE) Standard Knurl Natural/Yellow  -
1/16 inches 1/4-28 2000 psi/138 bar Polypropylene/Tefzel (ETFE) Standard Knurl Natural/Blue  
1/16 inches 1/4-28 2000 psi/138 bar Genuine Teflon™ PFA Resin/Genuine Tefzel™ ETFE Resin Standard Knurl

Natural/Blue, Blue/Blue

 -
1/8 inches 1/4-28 500 psi/34 bar Genuine Teflon™ PFA Resin/Genuine Tefzel™ ETFE Resin Standard Knurl Natural/Yellow  -
1/4 inches, 5/16 inches 1/2-20 250 psi/17 bar PEEK/Tefzel (ETFE) Large Knurl Black/Natural  -
1/8 inches 1/4-28 500 psi/34 bar Delrin/Genuine Tefzel™ ETFE Resin Standard Knurl Natural/Yellow  -
1/16 inches 1/4-24 2000 psi/138 bar Genuine Tefzel™ ETFE Resin Standard Knurl Blue/Blue  -
1/16 inches 1/4-28 2000 psi/138 bar Delrin/Genuine Tefzel™ ETFE Resin Standard Knurl Natural/Blue  -

 

 

List of available Flangeless Short Fittings

For outer diameter tubing Thread Port Configuration Flat-Bottom Pressure Rating Max Material Head Style Colour Option for Pack
1/8 inches 1/4-28 500 psi/34 bar PEEK/Tefzel (ETFE) Standard Knurl Natural, Natural/Yellow Pack of 10 units (exclusively for Colour - Natural)
1/16 inches 1/4-28 2000 psi/138 bar PEEK/Tefzel (ETFE) Standard Knurl Natural/Blue Pack of 10 units
1/8 inches 1/4-28 500 psi/34 bar Genuine Tefzel™ ETFE Resin Standard Knurl Not applicable  -
1/16 inches 1/4-28 2000 psi/138 bar Genuine Tefzel™ ETFE Resin Standard Knurl Natural, Black Pack of 10 units (exclusively for Colour - Black)
1/8 inches 1/4-24 500 psi/34 bar Delrin/Genuine Tefzel™ ETFE Resin Standard Knurl Purple/Yellow, Black/Yellow  -

Our Flangeless FlushNut Fittings are designed to include both a nut and ferrule for your convenience. Flangeless fittings are excellent replacements for flanged fittings. Flangeless fitting are dependable, easy to use and easy to replace. FlushNuts offers the answer for those tight-space applications where nut heads often interfere with each other.


List of available Flangeless Fitting FlushNut™

For outer diameter tubing Thread Port Configuration Flat-Bottom Pressure Rating Max Material Head Style
1/16 1/4-28 2500 psi/172 bar Stainless Steel FlushNut
1/16 1/4-28 2000 psi/138 bar Stainless Steel/Tefzel (ETFE) Not applicable
1/8 1/4-28 500 psi/34 bar Stainless Steel/Tefzel (ETFE) Not applicable

 

This PEEK Flangeless Nut eliminates the need to flange tubing. The construction of this fitting ensures good pressure holding ability and long-term durability. It is designed for a Flat-Bottom port which is one of the most frequently used by equipment manufacturers.


List of available Flangeless Nuts

For outer diameter tubing Thread Port Configuration Flat-Bottom Material Pressure Rating Max Head Style Colour Option for Pack
1/16 inches 10-32 PEEK (LiteTouch®) Not applicable Not applicable Not applicable  -
3/16 inches 5/16-24 Delrin Not applicable Not applicable Natural  -
1/8 inches 1/4-28 Delrin Not applicable Not applicable Purple  -
1/16 inches 5/16-24 PEEK Not applicable Not applicable Natural, Black  -
1/16 inches 1/4-28 PEEK Not applicable Standard Knurl Natural, Black  -
1/16 inches to 1/32 inches M6 PEEK Not applicable Standard Knurl Black  -
1/8 inches 1/4-28 PEEK Not applicable Not applicable Natural, Blue, Green, Orange, Red, Yellow Pack of 10 units (exclusively for Colour - Natural)
1/8 inches M6 Genuine Teflon™ PFA Resin Not applicable Not applicable Black  -
1/16 inches 1/4-28 Genuine Teflon™ PFA Resin Not applicable Standard Knurl Natural  -
1/16 inches M6 Genuine Teflon™ PFA Resin Not applicable Standard Knurl Black  -
1/8 inches 1/4-28 Genuine Teflon™ PFA Resin 500 psi/34 bar Standard Knurl Natural Pack of 10 units
1/8 inches 1/4-28 Polypropylene Not applicable Not applicable Natural, Black, Blue, Green, Orange, Red, Yellow  -
1/8 inches M6 Genuine Tefzel™ ETFE Resin Not applicable Not applicable Natural  -
1/8 inches 1/4-28 Genuine Tefzel™ ETFE Resin Not applicable Standard Knurl Yellow, Red, Green, Black, Blue, Natural  -
1/16 inches M6 Genuine Tefzel™ ETFE Resin Not applicable Standard Knurl Black, Yellow Pack of 10 units (exclusively for Colour - Black)
1/16 inches 1/4-28 Genuine Tefzel™ ETFE Resin Not applicable Standard Knurl Yellow, Red, Green, Black, Natural, Blue  -
1/16 inches M6 PPS Not applicable Headless Knurl Natural  -
1/16 inches 1/4-28 PPS Not applicable Headless Knurl Natural  -

 

 

List of available Flangeless Male Nuts

For outer diameter tubing Thread Port Configuration Flat-Bottom Material Pressure Rating Max Head Style Colour Option for Pack
1/16 inches 1/4-28 Delrin Not applicable Standard Knurl Black, Red, White, Cream, Green, Blue, Purple Pack of 10 units (exclusively for Colour - Red)
1/8 inches 1/4-28 Delrin Not applicable Not applicable Black, Red, White, Cream, Green, Blue Pack of 10 units (exclusively for Colour - Black, Green)
1/16 inches 1/4-28 Polypropylene Not applicable Standard Knurl Natural, Blue, Black, Green, Orange, Red, Yellow  -
1/16 inches M6 Delrin Not applicable Standard Knurl Black, Black (Length Style: Short)  -

 

 

List of other available Flangeless Nuts (including Short Nuts, Short Male Nuts and Extra Long Nuts)

For outer diameter tubing Thread Port Configuration Flat-Bottom Material Pressure Rating Max Head Style Length Style Colour Option for Pack
1/16 inches 1/4-28 PEEK Not applicable Headless Knurl Short Not applicable  -
1/8 inches 1/4-28 PEEK 500 psi/34 bar Headless Knurl Short Natural  -
1/16 inches 1/4-28 Delrin Not applicable Standard Knurl Short Black, White  -
1/8 inches 1/4-28 Delrin Not applicable Not applicable Short Black, White  -
1/8 inches 1/4-28 Genuine Tefzel™ ETFE Resin Not applicable Not applicable Extra Long Not applicable  -
1/16 inches 1/4-28 Delrin/Genuine Tefzel™ ETFE Resin Not applicable Standard Knurl Extra Long Blue, Natural  -
1/16 inches 1/4-28 Genuine Tefzel™ ETFE Resin Not applicable Standard Knurl Short Natural, Blue, Black, Green, Red  -
1/8 inches 1/4-28 Genuine Tefzel™ ETFE Resin Not applicable Standard Knurl Short Red, Yellow, Natural, Blue, Black, Green  -
1/8 inches 1/4-28 PEEK Not applicable Not applicable Short Natural, Blue, Green, Orange, Red, Yellow Pack of 10 units (exclusively for Colour - Natural)
1/16 inches 1/4-28 PEEK Not applicable Not applicable Short Natural, Blue Pack of 10 units (exclusively for Colour - Natural)
1/8 inches to 1.8 mm (also fits for 2.0 mm and 3.0 mm) M6 PEEK 500 psi/34 bar Not applicable Short Blue, Black Pack of 10 units
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[IDEX, Upchurch Scientific, Fittings, Flat-Bottom, Flangeless]