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
Technical Specifications
| 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
Technical Specifications
| 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
Technical Specifications
| 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™
Technical Specifications
| 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
Technical Specifications
| 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
Technical Specifications
| 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)
Technical Specifications
| 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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