cheminert fittings
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Ferrules – grooved PEEK
These patented ferrules* feature a grooved design that permits the ferrule to grip the tube in multiple
places. They work great on tubing that is softer than the ferrule material. For example, PEEK grooved
ferrules work well on PTFE or FEP tubing. They are not generally recommended if the tubing is the
same material as the ferrule.
Package of 10:
Prod No
1/32"
ZGF.5PK-10
1/16"
ZGF1PK-10
Ferrules – high pressure PEEK
PEEK ferrules seal by the increased friction from compression.
Package of 10:
Prod No
1/32"
ZF.5PK-10
1/16"
ZF1PK-10
1/8"
ZF2PK-10
Internal nuts – high pressure PEEK
PEEK nuts are used in Cheminert polymeric valves with zero dead volume fittings. They can also be
used as alternatives to standard stainless steel Valco nuts when polymeric ferrules are used (up to
approximately 175°C). Fingertight nuts have a knurled surface designed to provide sufficient sealing
force on the ferrule without wrenches. Hex style nuts allow wrench tightening; however, since they
are polymeric, they can break and are recommended for use only when space is limited and fingers
won’t fit.
Caution:
PEEK nuts are intended for use only with polymeric ferrules, which seal with lower force than
their stainless steel counterparts. Overtightening can result in breakage.
Package of 10:
Prod no
Length
1/32" fingertight
ZN.5FPK-10
.42"
1/32" fingertight
LZN.5FPK-10
.54"
1/16" fingertight
ZN1FPK-10
.88"
1/16" hex
ZN1PK-10
.45"
1/16" hex
MZN1PK-10
.62"
1/16" hex
LZN1PK-10
.87"
1/8" hex
ZN2PK-10
.62"
No twist one-piece fittings
10-32 for 1/16" tubing
These new fittings offer the convenience of a one-piece fitting while solving a problem inherent
to such designs. In other one-piece designs, the ferrule rotates against the fitting detail, creating
particulates. The no twist design has a separate ferrule that snaps into the nut, so it’s attached but still
free to avoid rotation during tightening.
Since the ferrule is not machined onto the nut, it can be made from a different material. PEEK nut with
PEEK ferrule, or PEEK nut with CTFE ferrule – the possibilities are endless.
Package of 5:
Glass-filled PEEK
PEEK
CTFE
ferrule
ferrule
ferrule
Nut type Length
Prod No
Prod No
Prod No
PEEK, hex short
ZNF1PKG-5
ZNF1PK-5
ZNF1KF-5
PEEK, hex medium MZNF1PKG-5
MZNF1PK-5
MZNF1KF-5
PEEK, hex long
LZNF1PKG-5
LZNF1PK-5
LZNF1KF-5
PEEK, fingertight
ZNF1FPKG-5
ZNF1FPK-5
ZNF1FKF-5
Optional ferrule materials available – FEP, PFA, PTFE, and glass-filled PTFE. Call for availability.
Some 1/32" versions are available. Call for details.
Patent No. 7,316,777
Pkg of 10:
1/4"
3/8"
1/2"
High Pressure PEEK Fittings
100 µm = .004"
150 µm = .006"
0.25 mm = .010"
0.50 mm = .020"
0.75 mm = .030"
1.0 mm = .040"
1.5 mm = .060"
2.0 mm = .080"
4.6 mm = .180"
6.0 mm = .236"
6.4 mm = .253"
7.0 mm = .275"
10.0 mm = .400"
27.0 mm = 1.08"
1/32" = 0.8 mm
1/16" = 1.6 mm
1/8" = 3.2 mm
1/4" = 6.4 mm
3/8" = 9.5 mm
1/2" = 12.7 mm
polymers
at a glance
PEEK . . . . . . . . . PK
Chemical resistance;
up to 225°C
more information
Tightening tool for
hex-head PEEK nuts . 67
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail:
Tel: 03 9762 2034
