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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16 products visible

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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Flangeless fittings

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