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Upchurch Scientific™ Back Pressure Regulators and Accessories

Placing back pressure regulator (usually 500 - 1,000 psi) between pump and injector can enhance pump's performance

Manufacturer: upchurch scientific™  UPP788

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Catalog No. 05-704-218

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Description & Specifications


Type Back Pressure Regulator Assembly
Material PEEK
Swept Volume 109μL
Pressure 250psi

Bubbles enter the detector's flow cell, they can cause erratic baseline readings and loss of sensitivity. By placing a back pressure regulator (BPR) after the detector, the fluid remains under sufficient compression after leaving the column to prevent most bubbles from forming and thus helping to ensure a smoother baseline and increased sensitivity.

  • Standard versions, low-volume versions, and adjustable version available
  • Flow-independent pump preload for greater pump efficiency
  • Proven out-gassing protection
  • Multiple pressure ratings
  • 2,000 to 5,000psi (138 to 345 bar)
  • Biocompatible/chemically resistant materials
  • Only 6μLmaximum internal swept volume
  • Designed for multi-detector applications
  • 100% Biocompatible, inert materials
  • Replacement cartridges and holders sold separately