Back-Pressure Regulator

back-pressure regulator
  • Improves baseline stability by preventing bubble formation in the flow cell
  • Adjust back-pressure without disconnecting anything
  • Completely biocompatible fluid path, with low dead volume
  • Easy mount with 17 mm panel hole

Even properly degassed mobile phases may contain some dissolved gases that can release bubbles in the detector flow cell resulting in baseline noise and drift. The VICI-Jour back-pressure regulator provides a quick and convenient way to improve the stability of detector baseline by providing a constant back-pressure on the flow cell, which stops the release of dissolved gases from the mobile phase.

Because of the unique design, the backpressure regulator has a very small internal volume. The peak shape is not affected when the regulator is installed between two detectors in a multi-detector system, or between a detector and a fraction collector or fraction collector system. Typically, 90% or more of a given component's efficiency will be retained upon passing through the regulator.

A spring-loaded diaphragm provides the force that generates the back-pressure. Spring tension may be adjusted using the back-pressure adjustment screw on the top of the regulator to vary the backpressure without disconnecting any lines.

Back-pressure regulators are available in two ranges: 1-20 bar (15-300 psi) and 20-103 bar (300-1500 psi).

Range Product No.
1-20 bar (15-300 psi) JR-BPR1
20-103 bar (300-1500 psi) JR-BPR2