Inline Cartridge Check Valves

  • Low Cracking Pressures (At which valve opens for flow in the direction of the arrow. Tolerance on the cracking pressure for CV-3001 is ± 0.5 psi (0.03 bar) and ± 1.5 psi (0.10 bar) on CV-3011).
  • Less than 150 µL Internal Volume.
Upchurch Scientific® cartridge - style Inline Check Valves are designed to limit flow to one direction. These assemblies withstand system pressures of 1000 psi (69 bar). If the accompanying Flangeless Fittings are replaced with Super Flangeless™ Fittings, the Check Valve Assemblies will hold to higher pressures in the reverse direction. [These Inline Check Valve Assemblies should not be subjected to pressures above 3000 psi (207 bar)]. If you prefer Fingertight Fittings, try an Inline Check Valve Cartridge with the U-469 Stainless Steel High Pressure Holder.

Try our CV-3010 Assembly and CV-3011 Cartridge, designed specifically for degassing (sparging) lines to prevent solvent backup if the sparging gas runs out. This check valve will help prevent potential solvent cross-contamination and damage to the gas regulating valve. The cracking pressures for the Inline Check Valve Cartridges are 1.5 psi (0.10 bar) for the CV-3001 and 3 psi (0.21 bar) for the CV-3011.(Pressure at which valve opens for flow in the direction of the arrow. Tolerance on the cracking pressure for CV-3001 is ± 0.5 psi (0.03 bar) and ± 1.5 psi (0.10 bar) on CV-3011).

For post-column derivitization, place a CV-3000 Inline Check Valve on the effluent side of your column to prevent derivatizing agents from flowing backwards and poisoning the column. Placement on the post-column reagent line will also prevent mobile phase from contaminating the reagent if the auxiliary pump fails.

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Item #

Item Name

Swept Volume

List Price

CV-3000

CV Inline Assy

96 µL

$91.32
CV-3001

CV Inline Cartridge

91 µL

$59.98
CV-3010

CV Inline Assy 3 psi 1/8in

100 µL

$91.32
CV-3011

CV Inline Cartridge 3 psi

92 µL

$59.98