Flangeless fittings IDEX Flangeless Fittings are the most popular solution for connecting polymer tubing (such as FEP, PFA and ETFE) to flat-bottom ports. As the name suggests, the tubing does not need to be flanged. A simple, squarely cut tube end is enough for a perfect, leak-free connection.
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Looking for a fitting solution? Request a no-obligation consultation with Inacom and get in touch with one of our specialists!
Why choose flangeless? Quick and easy: Slide the nut and ferrule over the tubing and tighten finger-tight. No special tools or heat needed to deform the tubing.Biocompatible: Made of inert materials such as PEEK and ETFE, making them ideal for biochemical analyses.Broad compatibility: Suitable for the most common flat-bottom ports such as 1/4-28 UNF and M6.Pressure range: Reliable for applications from vacuum up to approx. 2,500 psi (172 bar), depending on the tubing size and material.Part No. Description Port Pressure Rating Material P-200 Flangeless Ferrule for 1/16” OD Tubing M6 or 1/4-28 Flat-Bottom 2,000 psi (138 bar) ETFE Blue P-200N Flangeless Ferrule for 1/16” OD Tubing M6 or 1/4-28 Flat-Bottom 2,000 psi (138 bar) ETFE Natural P-240 Flangeless Ferrule for 1/16” OD Tubing, Small valve M6, 1/4-28, or 10-32 Flat-Bottom 2,500 psi (172 bar) ETFE Natural P-300 Flangeless Ferrule for 1/8” OD Tubing M6 or 1/4-28 Flat-Bottom 500 psi (34 bar) EFTE Yellow P-300N Flangeless Ferrule for 1/8” OD Tubing M6 or 1/4-28 Flat-Bottom 500 psi (34 bar) ETFE Natural P-340 Flangeless Ferrule for 1/8” OD Tubing, Small valve M6 or 1/4-28 Flat-Bottom 500 psi (34 bar) ETFE Natural
Part No. Description Port Pressure Rating Material F-252 1/16” OD Tubing Sleeve for 1.0 mm ID Tubing M6 or 1/4-28 Flat-Bottom 500 psi (34 bar) FEP Purple P-342 Flangeless Ferrule for 1.8 mm OD Tubing M6 or 1/4-28 Flat-Bottom 500 psi (34 bar) ETFE Green P-363R Flangeless Ferrule for 2.0 mm OD Tubing M6 or 1/4-28 Flat-Bottom 500 psi (34 bar) ETFE Red P-353 Flangeless Ferrule for 2.5 mm OD Tubing M6 or 1/4-28 Flat-Bottom 500 psi (34 bar) ETFE Natural P-343 Flangeless Ferrule for 3.0 mm OD Tubing M6 or 1/4-28 Flat-Bottom 500 psi (34 bar) ETFE Orange P-344 Flangeless Ferrule for 4.0 mm OD Tubing 5/16-24 Flat-Bottom 250 psi (17 bar) ETFE Natural
Part No. Description Port Pressure Rating Head Style Material F-358 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** FlushNut SST P-201 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl Delrin Black P-202 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl Delrin Red P-218 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl ETFE Natural P-220 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl PP Natural P-230 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl PEEK Natural P-235 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Short Standard Knurl PEEK Natural P-238 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl Delrin Purple P-245 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl PFA Natural P-286 Flangeless Nut for 1/16” OD Tubing 1/4-28 Flat Bottom ** Headless Knurl PPS Natural F-368 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** FlushNut SST P-301 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl Delrin Black P-302 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl Delrin Red P-305 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl Delrin Green P-308 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Short Standard Knurl Delrin Black P-315 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl ETFE Natural P-320 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl PP Natural P-330 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Standard Knurl PEEK Natural P-335 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Short Standard Knurl PEEK Natural P-348 Flangeless Fitting for 1/8” OD Tubing 1/4-28 Flat Bottom ** Short Headless Knurl PEEK Natural
Part No. Description Port Pressure Rating Head Style Material P-207 Flangeless Nut for 1/16” OD Tubing M6 Flat-Bottom ** Standard Knurl Delrin Black P-207S Flangeless Nut for 1/16” OD Tubing M6 Flat-Bottom ** Short Standard Knurl Delrin Black P-247 Flangeless Nut for 1/16” OD Tubing M6 Flat-Bottom ** Short Standard Knurl PEEK Black P-307 Flangeless Nut for 1.8 mm to 1/8” OD Tubing M6 Flat-Bottom ** Standard Knurl Delrin Black P-307S Flangeless Nut for 1.8 mm to 1/8” OD Tubing M6 Flat-Bottom ** Short Standard Knurl Delrin Black P-347 Flangeless Nut for 1.8 mm to 1/8” OD Tubing M6 Flat-Bottom ** Short Standard Knurl PEEK Black
Part No. Description Port Pressure Rating Head Style Material LT-111 Flangeless Nut for 1/16” OD Tubing 10-32 Flat Bottom 2,000 psi (138 bar) Standard Knurl PEEK Natural P-240 Flangeless Ferrule for 1/16" OD Tubing 10-32 Flat Bottom 2,000 psi (138 bar) - ETFE Natural
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-130 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 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 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
Tubing OD Flat-bottom port Ferrules Nuts 1/16" 10-32 P-240 LT-111 1/16" M6x1 P-200, P-840 P-207, P-207S, P-247, P-931 1/16" 1/4-28 P-200, P-840 Any 1/4-28 nut for 1/16” OD tubing 1/16" 5/16-24 P-200 P-136 1/8" M6x1 P-300, P-940 P-307, P-307S, P-347, P-945 1/8" 1/4-28 P-300, P-940 Any 1/4-28 nut for 1/8” OD tubing 1/8" 5/16-24 P-300 P-130 3/16" 5/16-24 P-133 P-132 1/4" 1/2-20 U-650 U-655 5/16" 1/2-20 U-660 U-662 1.0 mm M6x1 P-200* P-207, P-207S, P-247 1.0 mm 1/4-28 P-200* Any 1/4-28 nut for 1/16” OD tubing 1.8 mm M6x1 P-242 P-307, P-307S, P-347 1.8 mm 1/4-28 P-242 Any 1/4-28 nut for 1/8” OD tubing 2.0 mm M6x1 P-363R P-307, P-307S, P-347 2.0 mm 1/4-28 P-363R Any 1/4-28 nut for 1/8” OD tubing 2.5 mm M6x1 P-353 P-307, P-307S, P-347 2.5 mm 1/4-28 P-353 Any 1/4-28 nut for 1/8” OD tubing 3.0 mm M6x1 P-343 P-307, P-307S, P-347 3.0 mm 1/4-28 P-343 Any 1/4-28 nut for 1/8” OD tubing 4.0 mm 5/16-24 P-344 P-132
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