155
Check Valves &Pressure Regulators
Prime/Purge Valves
Part No. Description
Includes
Prime/Purge Valves
B-310
10cc Disposable Luer-Tipped Syringe
V-320
Prime/Purge Valve for Waters Pumps
(1) V-320-06
V-320-06 Replacement PTFE Seal (for V-320)
V-321
Universal Prime/Purge Valve
(2) P-300N, (2) P-335
Universal Prime/PurgeValve
For any style HPLC system
Automatic luer syringe operation
Featuring handy mounting holes
Materials of construction: ruby, sapphire, PEEK, PTFE,
and stainless steel
The Upchurch Scientifc Universal Prime/
Purge Valve is easy to operate. Simply
install a valve along the fowpath with the
included fttings and attach a luer-tipped
syringe. Then, withdraw the plunger and
watch as solvent and residual bubbles are
removed from the solvent line. The valve
automatically closes when the syringe
is removed.
The valve is designed to be used with 1/8” OD tubing. Optional
mounting is made easy by the handy holes in the body of each unit.
Prime/PurgeValve forWaters
®
Pumps
Automatic valve operation with a simple twist of a luer lock syringe
No tubing to cut or ferrules to swage
No wear on the internal seal
Materials of construction: ruby, sapphire, PEEK
™
, PTFE,
and stainless steel
The Upchurch Scientific
®
Prime/Purge Valve for Waters pumps
automatically opens when a luer syringe is attached and closes when
the syringe is removed. No valve rotation is required after the initial
installation, so wear on the internal seal is eliminated.
Inaddition, ourWaters-compatible
Prime/Purge Valve is simpler to
operate and more economically
priced than alternative valves
available for Waters systems.
A Waters-compatible internal
PTFEseal is includedwiththevalve.
This seal can also be purchased
separately. It can be used both
with the Upchurch Scientifc valve
and the original valve supplied
with the pump.
V-321
Universal Prime/Purge Valve
Mounting holes are 0.75” (1.91 cm) apart
0.94”
(2.39 cm)
1.28”
(3.25 cm)
Syringe (not included)
Luer Port
Check Valve
Assembly
Attaching ⁄ Removing the Syringe
Automatically Opens and Closes the Valve
Air in the Inlet Solvent Line
Install the Low Pressure Universal Prime/Purge Valve along the inlet solvent path
near the pump to remove bubbles from the inlet solvent line. The valve can also
be used to rapidly “wet” your solvent inlet flter. When a new flter is installed, it
often contains a substantial amount of air within its pores. At standard fow rates,
it may require several minutes before the inlet fuid pathway is completely free of
gas. Using this valve you are able to rapidly draw solvent through the inlet flter,
dislodging the gas and minimizing downtime.
Application Note
FOR ORDERING & DISTRIBUTOR INFORMATION +1 800 426 0191 • +1 360 679 2528 • www.idex-hs.com