7
Fittings
Stainless Steel VHPFittings
Pressure rated to 30,000 psi (2,070 bar)
Double compression ferrule design
Available with 10-32 threads for 1/16” OD tubing and M4 threads
for 1/32” OD tubing
The all Stainless-Steel VHP Fittings include a unique ferrule systemwith
two compression points to provide twice the grip of a standard ferrule.
This design also allows the bite on the tubing to be less concentrated
and does not restrict the inner diameter, as discussed in theApplication
Note below. The ferrules for 1/16” OD tubing and 10-32 coned ports
are two pieces, while the grooved ferrule for 1/32” OD tubing and M4
conedports is aone-piecedesign for easier handling, but it will act as two
pieces with double compression on the tubing as it is tightened down.
All-PEEK
™
VHPFitting
Manufactured from 100% PEEK
Patent pending
Available with 10-32 threads for 1/16” OD tubing
Pressure rated to 10,000 psi (690 bar)
In a one-piece design, the VHP-150 is an all-PEEK fitting that can
operate up to 10,000 psi on PEEK tubing. Using a similar captive
ferrule as the VHP-320 series fttings on the previous page, the patent-
pending ftting design is also reusable up to 10 cycles, decreasing down
time during any hardware changes. Instead of having to replace tubing
and fttings if a new column is changed, the re-usable all-PEEK ftting
will be able to be adjusted to the new dimension X depth. Created
specifcally for ion chromatography, the VHP-150 will add connection
confdence at ultra high pressures.
VHP Fittings
Part No.
Description
Port
Pressure Rating
Required Torque
Head Style Material Qty.
STAINLESS STEEL VHP FITTINGS (includes nut and ferrule)
VHP-200x
VHP Fitting for 1/16” OD
10-32 Coned 30,000 psi (2,070 bar) 20 in-lbs (2.25 N·m)
1/4” Hex
SST
10-pk
VHP-205x
VHP Fitting for 1/16” OD, Long 10-32 Coned 30,000 psi (2,070 bar) 20 in-lbs (2.25 N·m)
1/4” Hex
SST
10-pk
VHP-900x
VHP Fitting for 1/32” OD M4 Coned
30,000 psi (2,070 bar) 20 in-lbs (2.25 N·m)
4 mm Hex
SST
10-pk
STAINLESS STEEL VHP FERRULES
VHP-200-01x VHP Ferrule for 1/16” OD
10-32 Coned 30,000 psi (2,070 bar) 20 in-lbs (2.25 N·m)
—
SST
10-pk
VHP-900-01x VHP Ferrule for 1/32” OD M4 Coned
30,000 psi (2,070 bar) 20 in-lbs (2.25 N·m)
—
SST
10-pk
PEEK VHP FITTING
VHP-150x
VHP Fitting for 1/16” OD
10-32 Coned 6,000 psi (414 bar)/
10,000 psi (690 bar)
2 in-lbs (0.22 N·m)/5 in-lbs (0.55 N·m)
Standard Knurl PEEK, Natural 10-pk
Application Note
In order to seal up to the stated pressure rating, the VHP-200-01 ferrule
requires 20 in-lbs (2.25 N·m) of torque. Similar ferrules on the market
require tightening torque of at least 30 in-lbs (3.3 N·m), which can result in a
restricted tubing passage, as shown in the picture below. This restriction
can increase turbulence and add a ‘throttling’ effect to the fuid pathway,
resulting in mixing and other potential chromatographic problems.
IDEX Health & Science VHP-200
Uniform Tubing Passage
Constricted Tubing Passage
Conventional Two Piece Ferrule Design
VHP-200
VHP 10-32 Fitting
for 1/16” OD tubing
0.40”
(1.02 cm)
VHP-205
VHP 10-32 Fitting, Long
for 1/16” OD tubing
VHP-900
VHP M4 Fitting
for 1/32” OD tubing
0.67”
(1.70 cm)
0.48”
(1.22 cm)
0.25”
(0.64 cm)
0.25”
(0.64 cm)
0.16”
(0.41 cm)
VHP-150
VHP 10-32 Fitting
for 1/16” OD tubing
0.86”
(2.18 cm)
0.37”
(0.94 cm)
FOR ORDERING & DISTRIBUTOR INFORMATION +1 800 426 0191 • +1 360 679 2528 • www.idex-hs.com