Agilent Technologies Infinity II SFC Binary 1260 User Manual page 56

3
Using the Pump
Normal Phase Applications
1290 Infinity pumps use PE seals by default. In combination with ceramic
pistons, PE seals are used for both reversed phase (1200 bar) and normal
phase applications.
1260 Infinity pumps use sapphire pistons and black PTFE piston and wash
seals by default (600 bar). Such PTFE seals create small wear particles in
normal phase applications, which can clog valves and other parts in the flow
path.
PE seals have a limited life time when used with normal phase solvents and
sapphire pistons. Agilent recommends a maximum pressure of 200 bar for this
combination, which shall also be applied for pressure tests.
Choice of Normal Phase Valves and Seals
Table 7
Inlet valves
Outlet valves
Seals
56
Recommended valves and seals for normal phase applications
1260 Infinity
1260 Infinity Inlet Valve Type N
(G1312-60166)
1260 Infinity Outlet Valve Type
N/SFC (G1312-60167)
PE seals (pack of 2)
(0905-1420)
Wash Seal PE (0905-1718)
1290 Infinity
1290 Infinity Inlet Valve Type N
(G4220-60122)
1290 Infinity Quat Inlet Valve
Type N (G4204-60122)
1290 Infinity Outlet Valve Type
N (G4220-60128)
1260 SFC Binary Pump