38
Connectors
High Pressure Unions
PEEK
™
ZDVUnions
Upchurch Scientific
®
PEEK zero-dead-volume (ZDV) Unions come
complete with two F-300 Fingertight Fittings for 1/16” OD tubing and
are pressure rated to 5,000 psi (344 bar).
P-704
PEEK ZDV Union
0.020” thru-hole
with F-300 Fittings
0.31”
(0.79 cm)
0.92”
(2.34 cm)
0.31”
(0.79 cm)
0.92”
(2.34 cm)
P-742
PEEK ZDV Union
0.010” thru-hole
with F-300 Fittings
P-760
PEEK ZDV Union
0.050” thru-hole
with F-300 Fittings
0.31”
(0.79 cm)
0.92”
(2.34 cm)
Part No. Description
Threads
Includes
Thru-hole
Swept Volume Pressure Rating
PEEK ZDV UNIONS
P-704 PEEK Union for 1/16” OD Tubing
10-32 Coned
(2) F-300
0.020” (0.50 mm) 0.28 µL
5,000 psi (344 bar)
P-742 PEEK Union for 1/16” OD Tubing
10-32 Coned
(2) F-300
0.010” (0.25 mm) 0.07 µL
5,000 psi (344 bar)
P-760 PEEK Union for 1/16” OD Tubing
10-32 Coned
(2) F-300
0.050” (1.25 mm) 1.2 µL
5,000 psi (344 bar)
NANOTIGHT UNION
P-779 PEEK NanoTight Union for 1/16” OD Tubing and Tubing Sleeves
10-32 Coned
(2) F-331N
0.005” (125 µm)
8 nL
5,000 psi (344 bar)
COLUMN COUPLERS
U-281 PCTFE Column Coupler
10-32 Coned N/A
0.020” (0.50 mm) 6.0 µL
4,000 psi (276 bar)
U-283 PCTFE Column Coupler with 0.007” ID Stainless Steel Tubing
10-32 Coned
(2) F-100
0.007” (0.17 mm) 1.3 µL
4,000 psi (276 bar)
U-284 Delrin Column Coupler with 0.007” ID Stainless Steel Tubing
10-32 Coned
(2) F-200
0.007” (0.17 mm) 1.3 µL
5,000 psi (345 bar)
U-287 PEEK Column Coupler with 0.010” ID PEEK Tubing
10-32 Coned
(2) F-300
0.010” (0.25 mm) 3.6 µL
5,000 psi (345 bar)
U-288 PEEK Column Coupler
10-32 Coned N/A
0.022” (0.56 mm) 7.2 µL
5,000 psi (345 bar)
ColumnCouplers
Low swept-volume connections
These universal column couplers permit a low swept-volume
connection, with minimal loss in column effciency. These couplers
will connect most columns with 10-32 internal threads to a precolumn
flter or guard column with the same threads. They may also be used
to join two columns in series.
Upchurch Scientifc manufactures two styles of column couplers. One
version is a single piece that makes coupling columns to guard columns
or precolumn flters easy and hassle-free. We also offer our traditional
couplers that consist of two Fingertight fttings and a short length
of 1/16” OD tubing—an excellent option for reducing overall fow
path volume while coupling two devices together reliably.
NanoTight
™
Unions
Upchurch Scientific NanoTight Union improves capillary tubing
connections in several ways. The internal design of the unions greatly
reduces the incidence of tubing misalignment. When using 1/16” OD
tubing sleeves (found on page 19) to connect capillary tubing, the
webbed thru-holeminimizes breaking of fused silica while adding only
miniscule swept volume. The results are fewer blockages, fewer fow
rate reductions and fewer back pressure problems.
0.83”
(2.11 cm)
0.28”
(0.71 cm)
10-32
10-32
P-779
NanoTight Union
0.005” thru-hole
with F-331N Fittings
U-281
PCTFE Column coupler
for 10-32 standard ports
U-288
PEEK Column coupler
for 10-32 standard ports
0.50”
(1.27 cm)
1.16”
(2.95 cm)
0.50”
(1.27 cm)
1.16”
(2.95 cm)
U-284
Delrin
®
Column coupler
for 10-32 standard ports
U-287
PEEK Column coupler
for 10-32 standard ports
0.51”
(1.30 cm)
0.51”
(1.30 cm)
2.05”
(5.21 cm)
2.80”
(7.11 cm)
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