Flangeless Tube End Fittings – Low Pressure

Cheminert flangeless tube end fittings

Flangeless 1/4-28 tube end fittings eliminate the flanging tool required with standard tube end fittings. The nut turns on the tubing as freely as with our flanged fitting, eliminating the possibility of cracking or unscrewing that can occur when plastic tubing is subjected to twisting as fittings are connected.

Cheminert flangeless fittings include our patented* collapsible ferrule design. This innovative design utilizes a one-piece ferrule engineered to collapse as it is tightened. The collapse takes place in a very narrow area, and results in a very effective seal with virtually no distortion of the tubing ID and no dead volume.

Cheminert flangeless tube end fittings

Cheminert tube end fittings work with any 1/16" or 1/8" OD polymeric tubing. CTFE nuts come in twelve different colors for system color coding. PEEK nuts are natural tan.

*Patent No. 6,575,501

1/16" tube end fittings

Materials Color of nut Product No.
Polypropylene nuts,
CTFE ferrules
(Pkg of 5)
Black CFL-1BK
Blue CFL-1BE
Brown CFL-1BR
Dark gray CFL-1DG
Green CFL-1G
Lavendar/pink CFL-1L
Natural CFL-1N
Orange CFL-1E
Purple CFL-1P
Red CFL-1R
White CFL-1W
Yellow CFL-1Y
Polypropylene nuts,
CTFE ferrules
(Pkg of 12)
Assorted
(1 of each color)
CFL-1A
Polypropylene nuts,
PEEK ferrules
(Pkg of 12)
Assorted
(1 of each color)
CFL-1A-PK
Setting tool CST
REPLACEMENT PARTS
CTFE ferrules (Pkg of 10) CFL-CB1KF
PEEK ferrules (Pkg of 10) CFL-CB1PK
PEEK nuts (Pkg of 5) CFL-1PK

1/8" tube end fittings

Materials Color of nut Product No.
Polypropylene nuts,
CTFE ferrules
(Pkg of 5)
Black CFL-2BK
Blue CFL-2BE
Brown CFL-2BR
Dark gray CFL-2DG
Green CFL-2G
Lavendar/pink CFL-2L
Natural CFL-2N
Orange CFL-2E
Purple CFL-2P
Red CFL-2R
White CFL-2W
Yellow CFL-2Y
Polypropylene nuts,
CTFE ferrules
(Pkg of 12)
Assorted
(1 of each color)
CFL-2A
Polypropylene nuts,
PEEK ferrules
(Pkg of 12)
Assorted
(1 of each color)
CFL-2A-PK
Setting tool CST
REPLACEMENT PARTS
CTFE ferrules (Pkg of 10) CFL-CB2KF
PEEK ferrules (Pkg of 10) CFL-CB2PK
PEEK nuts (Pkg of 5) CFL-2PK

MORE INFORMATION

SPECS

The assembly is rated at 500 psi liquid when tightened by hand.

MATERIALS

Since only the tubing and the ferrule come into contact with the solution, the result is an inert system.

Use CTFE (Kel-F) ferrules for soft tubing (PTFE, FEP, etc.), but use PEEK ferrules for harder tubing (Tefzel, polyurethane, etc.)