Large-bore fittings
Collection of different fitting types for larger tubing
This webpage contains a convenient collection of nuts and ferrules for wider port designs and tubing diameters. Focus is on the 5/16-24 ports & 1/2-20 flat-bottom ports, and tubing outer diameters of 4.0 mm, 3/16”, 1/4″, and 5/16”. Available options come from the Flangeless™ and Super Flangeless™ fitting families, plus some related barbed connectors.
Product details
Super Flangeless™ fittings for 5/16-24 ports
Flangeless™ fittings for 5/16-24 ports
Flangeless™ fittings for 1/2-20 ports
| Part No.* | Description | Port | Pressure Rating | Head Style | Material |
|---|---|---|---|---|---|
| P-136 | Flangeless Nut for 1/16” OD tubing | 5/16-24 Flat-Bottom | ** | Standard Knurl | PEEK Natural |
| P-141 | Super Flangeless Nut for 1/16” OD tubing | 5/16-24 Flat-Bottom | ** | Standard Knurl | PEEK Natural |
| P-130 | Flangeless Nut for 1/8” OD tubing | 5/16-24 Flat-Bottom | ** | Standard Knurl | PEEK Natural |
| P-131 | Super Flangeless Nut for 1/8” OD tubing | 5/16-24 Flat-Bottom | ** | Standard Knurl | PEEK Natural |
| P-132 | Flangeless Nut for 3/16” OD tubing | 5/16-24 Flat-Bottom | ** | Standard Knurl | PEEK Natural |
| P-137 | Super Flangeless Nut for 3/16” OD tubing | 5/16-24 Flat-Bottom | ** | Standard Knurl | PEEK Black |
| U-655 | Flangeless Nut for 1/4” OD tubing | 1/2-20 Flat-Bottom | ** | Large Knurl | PEEK Black |
| U-662 | Flangeless Nut for 5/16” OD tubing | 1/2-20 Flat-Bottom | ** | Large Knurl | PEEK Black |
| P-133 | Flangeless Ferrule for 3/16” OD tubing | 5/16-24 Flat-Bottom | 500 psi (34 bar) | - | ETFE Blue |
| P-133N | Flangeless Ferrule for 3/16” OD tubing | 5/16-24 Flat-Bottom | 500 psi (34 bar) | - | ETFE Natural |
| P-140 | Super Flangeless Ferrule for 3/16” OD tubing | 5/16-24 Flat-Bottom | 500 psi (34 bar) | - | ETFE Green |
| U-650 | Flangeless Ferrule for 1/4” OD tubing | 1/2-20 Flat-Bottom | 250 psi (17 bar) | - | ETFE Natural |
| U-660 | Flangeless Ferrule for 5/16” OD tubing | 1/2-20 Flat-Bottom | 250 psi (17 bar) | - | ETFE Natural |
Resources
Consult the Periodic Table of Analytical Fittings for a quick overview, the Fittings 101 for guidance and learning, and the IDEX Catalogue for product details, or contact Biotech Fluidics for expert advice.
