Purge Valves from Agilent
Agilent's range of high quality LC pump supplies includes Purge Valves for a range of systems and applications. Specific purge valve assemblies are available for a wide variety of Agilent-manufactured LC systems, providing you with excellent flexibility to acquire the supplies or replacements needed to ensure the ongoing success of your LC system. Valves designed to operate under a variety of pressures and in different size and capacity pumps are available, all of which are precision-engineered to Agilent's exacting quality standards.
The PTFE frit is a crucial part in the flow path that prevents particulates and microbes from getting into the system. It is important that frits maintain their shape up to the pressure limit of the system, since collapse or abrasion of the frit can release PTFE particles, resulting in blockage or loss of analysis efficiency.
Scanning electron microscopy (SEM) inspection reveals that sizes of PTFE particles in Agilent frits are much more uniform than frits from other vendors. If the frit is abraded, particles that are too large can block the flow path, while particles too small can pass through the column inlet frit, getting into the column, or even reach the detector causing contamination of the flow cell. In contrast to alternative frits, Agilent frits are designed to have a defined particle size to avoid these issues.
Manual Purge Valves
G1312-60071 - Purge valve, long, with PTFE frit, 600 bar, for pumps G1310A/B, G1311A/B/C, G1312A/B/C, G1376A, G2226A, G7111A/B, G7112B, G4302A, G4782A
G7111-60061 - Purge valve, short, with PTFE frit, 600 bar, for 1120/1220 Series pumps
G5611-60062 - Bio-inert purge valve, long, for 1260 Infinity Bio-inert quaternary pump (G5611A)
G5611-60064 - Bio-inert purge valve, short, for 1260 Infinity II Bio-inert quaternary pump (G5654A)
01018-22707 - PTFE frits, for 1290 Infinity binary pumps (G4220A/B) and all 1260
5067-4728 - Seal cap, for all manual purge valves
Automated Purge Valves
5068-0005 - Rotor seal (vespel), 1200 bar, for G4220A/B
5068-0004 - Stator head, 1200 bar/1300 bar, for G4220A/B, G7120A
5068-0201 - Rotor seal (PEEK), 1300 bar, for G7120A
5068-0123 - Rotor, for multipurpose valve head, 1200 bar, for G4204A
5068-0001 - Stator, for multipurpose valve, 1200 bar/1300 bar, for G4204A, G7104A/C
5068-0202 - Rotor, for multipurpose valve head, 1300 bar, for G7104A