In-Line Check Values
The
ASI in-line check valve incorporates many of the innovations of our self-priming replacement check
valves. It is a rapid closure cartridge valve that features very low resistance to flow, low internal volume, and
operates independently of gravity. It is protected from solvent contamination by a 1/4" diameter 2 micron frit, and
features crush-proof construction. The valve may be used whenever fluid flow needs to be restricted to one direction.
Applications include prevention of post column derivitization fluids from back-flowing into the column in the event of mobile
phase pump failure. This valve is also available in a high temperature version that will operate at up to 125º C and
5000 PSI. (Please call for more information).
Valve Specifications:
| ASI Part Number | Internal Volume |
Cracking Pressure |
Maximum Operating Pressure |
Cv* |
| 250-2000 In-Line CV Assembly | 48 µL | 1.0 PSI | 15,000 PSI | 0.005 |
| 250-2006 In-Line CV Cartridge | ||||
| 250-2000UHP In-line CV Assembly | 48 µL | 1.0 PSI | 30,000 PSI | 0.005 |
| 250-2000UHP In-line CV Cartage | ||||
| 250-2001 In-line CV Assembly | 60 µL | 1.0 PSI | 15,000 PSI | 0.02 |
| 250-2001 In-line CV Cartage |
*Cv of 1.0 is defined as one gallon per minute of 60 °F water resulting
from a 1 PSI pressure drop.
1 gallon = 3,785 mL.
Ordering Information
| Description | ASI Part Number |
| In-Line Check Valve with 1/8" Ball Cartridge | 250-2000 |
| Replacement 1/8" Ball Cartridge | 250-2006 |
| In-Line
Check Valve with 1/8" Ball Cartridge Ultra High Pressure |
250-2000UHP |
| Replacement 1/8" Ball Cartridge Ultra High Pressure | 250-2006UHP |
| In-Line Check Valve with 3/16" Ball Cartridge | 250-2001 |
| Replacement 3/16" Ball Cartridge | 250-2007 |
