145
Valves
Switching and Shut-Off Valves
0.145”
(0.37 cm)
diameter
P-733
PEEK Shut-Off Valve
P-783
ETFE Shut-Off Valve
1.07”
(2.72 cm)
1.00”
(2.54 cm)
0.50”
(1.27 cm)
Shut-Off Valves
For low and medium pressure applications
Biocompatible, all-polymer fow path
Available for 1/16” and 1/8” OD tubing
Pressure rated to 500 psi (34 bar)
Stop a fow stream quickly with Upchurch Scientifc
®
biocompatible
Shut-Off Valves. The bodies are manufactured from either PEEK
™
or ETFE, and both versions feature a PCTFE rotor, making them
highly resistant to chemical attack. The blue colorant used in some
valve configurations has proven not to leach out with common
HPLC solvents.
Connect semi-rigid or rigid tubing, such as PEEK, stainless steel or
fluoropolymer, with the 1/4-28 Flangeless Fittings provided. Soft
tubing, such as PharMed
®
or Tygon
®
(see pages 75 – 89), may be
connected to these valves using our 1/4-28 barbed adapters, found
on page 58.
Part No. Material
OD
Tubing Thru-hole
Internal
Volume* Includes
Shut-Off Valves
P-721 ETFE, Natural 1/8” 0.040” (1.0 mm) 10.0 µL
(2) P-335, (2) P-300N
P-732 PEEK, Natural 1/16” 0.020” (0.5 mm) 2.5 µL
(2) XP-235
P-733 PEEK, Natural 1/8” 0.040” (1.0 mm) 10.0 µL
(2) XP-335
P-782 ETFE, Blue 1/16” 0.020” (0.5 mm) 2.5 µL
(2) XP-235
P-783 ETFE, Blue 1/8” 0.040” (1.0 mm) 10.0 µL
(2) XP-335
* Maximum internal volume, with valve fully open
A typical application for a Right Angle Flow Switching Valve (“L”) is column
switching, allowing two columns to use one detector. Detector switching
is another common application for this valve (see below). Plug off the extra
port with the included plug.
Your detector switching
application may require
the fexibility of routing the
column effuent to both
detectors simultaneously
while retaining the ability to
isolate each detector. Use our
3-Way Flow Switching Valve
(“T”), plugging off the fourth
port with the included plug
(see right).
In
Detector #1
Detector #2
Position 1
Position 2
Position 3
In
Detector #1
Detector #2
In
Detector #1
Detector #2
Position 1
Position 2
Detector
#1
Detector
#2
V-100L Valve
Plug
Column
Column
Detector
#1
Detector
#2
V-100L Valve
Plug
Medium Pressure Switching Valve Applications
Protect sensitive system components (such as a column) during a cleaning
cycle with our Diagonal Flow Switching Valve (“D”). This valve eliminates the
need to remove, plug and reconnect a low pressure column (see below).
Pump
Detector
Position 1
Pump
Detector
Position 2
Application Note
Install a Shut-Off Valve between the solvent reservoir and pump. Then, when
it is necessary to disconnect the solvent line, a simple twist of the valve lever
eliminates the potential of a hazardous spill.
Application Note
Top Seller
See starred products
FOR ORDERING & DISTRIBUTOR INFORMATION +1 800 426 0191 • +1 360 679 2528 • www.idex-hs.com