Idex Back Pressure Regulator Assemblies

BPR Assemblies

Choose from our line of Biocompatible and Stainless Steel BPR Assemblies, each complete with a replaceable, factory preset cartridge (except the 5 and 20 psi versions).

Upchurch Scientific BPR Assemblies create incremental back pressures ranging from 5 to 1,000 psi (0.3 to 69 bar). The Biocompatible BPR Assemblies feature a PEEK holder; polymer-based fittings; biocompatible BPR cartridges and wrenches for tightening. Stainless Steel BPR Assemblies feature the same biocompatible BPR cartridges with a 316 stainless steel holder and polymer fittings.

 

Application NOTE:

  • Small gas bubbles often form as solvent moves from the high pressure of an HPLC column to the low pressure environment leading to the detector. This outgassing can cause erratic baseline readings and loss of sensitivity. Placing an Upchurch Scientific BPR (usually a 40 – 100 psi) after the detector provides an excellent, low-cost method for reducing this problem by maintaining enough back pressure on the mobile phase to keep gases dissolved in solution.
  • A back pressure regulator can also be used as a pump preload for low and fluctuating pressure applications. Many of today’s pumps require a steady back pressure to function properly. Install an Upchurch Scientific BPR (usually 500– 1,000 psi) between the pump and the injector to enhance pump performance.

 

Caution: Do not exceed the maximum operating pressure of your system—please refer to the operating manuals for your system components before choosing the appropriate BPR.

 

Serial Number

Description

P-455

BPR Assembly PEEK 1000 psi

P-785

BPR Assembly 40 psi - Biocompatible

P-786

BPR Assembly 75 psi - Biocompatible

P-787

BPR Assembly 100 psi - Biocompatible

P-788

BPR Assembly 250 psi - Biocompatible

P-789

BPR Assembly 500 psi - Biocompatible

P-790

BPR Assembly 5 psi

P-791

BPR Assembly 20 psi

P-880

High Pressure Adjustable BPR

U-605

BPR Assembly 40 psi

U-606

BPR Assembly 75 psi

U-607

BPR Assembly 100 psi

U-608

BPR Assembly 250 psi

U-609

BPR Assembly 500 psi

U-610

BPR Assembly 750 psi

 

 

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