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Pages in this section: E65 E66 E67 E68 E69 E70 E71 E72
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ASI QuickSplit
Fixed Flow Splitters
E68
Scientific Instrument Services, Inc.
Phone: 908-788-5550
www.sisweb.com/catalog/08/E68
Fixed Flow Splitters - Pre-Column Applications
P
re-column splitting is used for micro, capillary, and nano HPLC applications, where the flow from the pump is split from analyti-
cal flow rates down to microliter or nanoliter flows. It is important to note that even though the split ratio created by the splitter
valve will remain constant, the split ratio will change when a HPLC column is installed. This is due to the added resistance on
the low flow rate channel from the HPLC column. This added resistance must be factored in to make sure the fluid resistors selected for
the flow splitter provide the correct split ratio.
When ordering a pre-column flow spitter please provide SIS with the column flow rate and back pressure. If the inlet flow rate or col-
umn pressure specification is not provided, SIS will configure pre-column flow splitters assuming a 0.5 mL/min. splitter inlet flow rate and
a pressure drop across the column of 1500 psi. Adjustments to the low flow rate channel can be made by increasing or decreasing the
splitter inlet flow rate.
QuickSplit™ Binary Fixed Flow Splitter
This easy to use “plug and play” device comes with a prede-
fined split ratio eliminating tedious adjustments to capillary tubing.
Split ratio changes are accomplished by changing the resistor set.
The split ratio is determined by the ratio of fluid resistors installed
in the splitter manifold. The pressure drop across a fixed splitter for
pre-column applications where the pressure is nominally 1,500 psi.
The low internal dead volume prevents excessive dispersion and
the replaceable inlet filter insures robust operation. Available in
models for analytical inlet flow rates.
Analytical Splitters - Binary
Analytical range, 0.1 mL/min. to 0.5 mL/min. input flow
The pressure drop across a pre-column flow splitter will generally be between 1,000 psi and 3,500 psi. The exact pressure drop will
depend on how the splitter is configured.
Analytical Replacement Resistor Sets - Binary
Interchangeable
Fluid Resistor Cartridge
Part No.
Description
Split Ratio
620-PR10-03
Analytical Fixed Flow Splitter, Pre-Column
2,000:1
620-PR10-04
Analytical Fixed Flow Splitter, Pre-Column
1,000:1
620-PR10-05
Analytical Fixed Flow Splitter, Pre-Column
500:1
620-PR10-06
Analytical Fixed Flow Splitter, Pre-Column
200:1
620-PR10-07
Analytical Fixed Flow Splitter, Pre-Column
100:1
620-PR10-08
Analytical Fixed Flow Splitter, Pre-Column
50:1
620-PR10-09 Part #620PR1009--Click to order
Current Price: $0.00
Unit of Measure: EA
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Analytical Fixed Flow Splitter, Pre-Column
20:1
620-PR10-10
Analytical Fixed Flow Splitter, Pre-Column
10:1
620-PR10-CS*
Analytical Fixed Flow Splitter, Pre-Column
Custom*
Does not come with mounting bracket, please see pg. E69 for mounting bracket information.
* Must specify custom split ratio when ordering
Part No.
Description
Split Ratio
620-PR00-03
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
2,000:1
620-PR00-04
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
1,000:1
620-PR00-05
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
500:1
620-PR00-06
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
200:1
620-PR00-07
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
100:1
620-PR00-08
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
50:1
620-PR00-09
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
20:1
620-PR00-10
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
10:1
620-PR00-CS*
Analytical Fixed Flow Splitter Resistor Set, Pre-Column
Custom*
* Must specify custom split ratio when ordering
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