LC Accessories

Fittings & Tubing
L C A C C E S S O R I E S
Flange-Free Low Pressure Fittings †
• Convenient ferrule eliminates need for flanging
• Compatible with all 1/4-28 UNF ports
• Frit-in-ferrule option provides in-line filtration
A
5488 5489 5490
The Flange-Free system makes connections to
1/4-28, flat-bottomed ports without flanging tools.
Hand-tightened connections produce a leak-free seal to
500psig on 1/8" o.d. PTFE tubing and to 1,000psig on
1/16" o.d. PTFE tubing. Hex-head fittings are available
for use with harder tubing, such as PEEK, Tefzel ® , or
metal.
The frit-in-ferrule assembly has a small frit built
into the ferrule to give the benefits of in-line filtration,
without the inconvenience or added dead-volume of a
filter housing.
†
U.S. Patent #4,690,437
Flange-Free Fitting Specifications
Material:
Varies, See Price Block
Maximum Temperature: 100°C
Maximum Pressure: 1/8" 500psig
1/16" 1,000psig
Thread Type:
1/4-28 UNF
Typical Use:
1/16" or 1/8" o.d. Tubing Connection
B
C
FLANGE-FREE FITTINGS, 10/PK
GRAPHIC DESCRIPTION MATERIAL
1/16" O.D.
TUBING
PART NO.
1/8" O.D.
TUBING
PART NO.
Finger-Tight Nuts
A White Delrin ® 201101 201201
A Black Delrin ® 201122 201211
A White, Long Delrin ® 201131 201221
A Black, Long Delrin ® 201141 201231
A Natural PEEK 37065 37075
A Black PEEK 37067 37077
A Red PEEK 37062 37072
A Yellow PEEK 37064 37074
A Blue PEEK 37066 37076
A Green PEEK 37068 37078
A Assorted (2 ea) PEEK 37060 37070
Hex-Head Nuts
B Aluminum Metal 200911 200901
B Stainless Steel Metal 200936 200926
Flange-Free Ferrules
C Ferrules PEEK 201171 201271
C 0.3mm Bore Kel-F ® 200771 —
C 0.8mm Bore Kel-F ® 200781 —
C Ferrules Kel-F ® 201152 201251
C Ferrules Tefzel ® 20240 20242
Frit-in-Ferrule Assemblies
C w/2µm SS Frit PEEK 250331 250371
C w/2µm PAT ® Frit PEEK 250311 250351
PRICE
Flange-Free Plus High Pressure Fittings
• Seals Finger-Tight to 5,000psig
• Connects to any standard 1/4-28
port
• Available only for 1/16" tubing
6260
The Flange-Free Plus fitting
system improves the pressure rating for connections to a
standard 1/4-28 port. A simple, stainless-steel bushing
helps compress the ferrule against the tubing for a
secure seal to 5,000psig. A PEEK ferrule is used for its
liquid seal, maintaining an inert, metal-free fluid path.
Flange-Free Plus Fitting Specifications
Material:
PEEK and Stainless Steel
Maximum Temperature: 100°C
Maximum Pressure: 5,000psig
Thread Type:
1/4-28 UNF
Typical Use:
1/16" o.d. Tubing Connection
FLANGE-FREE PLUS FITTINGS
DESCRIPTION QTY. PART NO. PRICE
Fitting System* 10 25020
Replacement Parts
Stainless Steel Bushings 10 25022
PEEK Ferrules 10 25021
* Includes 10 each of fittings, bushings, and ferrules
Which Ferrule Material Should I Use?
1. Between a nut, ferrule and tubing assembly, the ferrule should be the softest material.
2. Kel-F ® and Tefzel ® ferrules give the best results with PTFE, Tefzel ® or softer polymeric tubing.
3. PEEK ferrules should be used with PEEK or metal tubing and fittings.
220
© Copyright 2004 Alltech Associates, Inc.
Contact your Alltech office or distributor for current or local prices.