Idex - Valves - Back Pressure Regulators

We developed Ultra-Low Volume Back Pressure Regulators (BPRs) to minimize swept volume, which is especially important for multi-detector applications. With a maximum swept volume of only 6 μL*, it is nearly impossible to detect these BPRs as part of your fluid pathway. To minimize the swept volume added to your flow path, we recommend trimming the length of the attached tubing. And because the flow path is completely polymeric, you are assured of biocompatibility.

• Micro-Volume Low Flow BPR PEEK, Pressure Setting 100 psi/7 bar
• Micro-Volume Low Flow BPR 500 psi, Pressure Setting 500 psi/34 bar
• Micro-Volume High Flow BPR, Pressure Setting 100 psi/7 bar

Our Micro-Volume BPR Assembly was developed to specifically minimize swept volume which is extremely important for multi-detector applications. Our BPR Assembly has a maximum swept volume of only 6uL making it nearly impossible to detect as part of your fluidic pathway. It is for a 1/16 tubing OD and has a pressure setting of 100psi/500psi (7 bar/34 bar). It comes with (1) P-230 Flangeless Fitting.

Specifications

We offer a comprehensive line of Biocompatible and Stainless Steel BPR Assemblies, each complete with a replaceable, factory preset cartridge (except the 5 and 20 psi versions). BPR Assemblies are designed to 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.

• BPR Assembly, Pressure Setting 40 psi/2.8 bar, Swept Volume 131 µL, Biocompatible
• BPR Assembly, Pressure Setting 75 psi/5.2bar , Swept Volume 131 µL, Biocompatible
• BPR Assembly, Pressure Setting100 psi/7 bar, Swept Volume 131 µL, Biocompatible
• BPR Assembly, Pressure Setting 250 psi/17 bar, Swept Volume 102 µL, Biocompatible
• BPR Assembly, Pressure Setting 500 psi/34 bar, Pressure Setting (bar) 34 bar, Swept Volume 96 µL, Biocompatible

Our Biocompatible Back Pressure Regulator (BPR) Assembly offers proven outgassing protection and enhances system performance. It optimally delivers incremental back pressure of 40 psi (2.8 bar)/75 psi (5.2 bar)/100 psi (7 bar)/250 psi (17 bar)/500 psi (34 bar). Our BPR assembly includes (1) P-761 BPR Cartridge and (2)OD x P-215 Flangeless Fittings.

• BPR Assembly Pressure Setting 5 psi/0.34 bar,
• BPR Assembly Pressure Setting 20 psi/1.4 bar, Swept Volume 134 µL, Material PEEK

Our Biocompatible Back Pressure Regulator (BPR) Assembly offers proven outgassing protection and enhances system performance. It optimally delivers incremental back pressure of 5 psi (0.34 bar)/ 20 psi (1.4 bar). This BPR Assembly includes (2)OD x P-215 Flangeless Fittings.

Specification

• BPR Assembly Pressure Setting (psi) 40 psi/2.8 bar, Swept Volume 129 µL
• BPR Assembly Pressure Setting (psi) 75 psi/5.2 bar, Swept Volume 129 µL
• BPR Assembly Pressure Setting (psi) 100 psi/7 bar, Swept Volume 129 µL
• BPR Assembly Pressure Setting (psi) 250 psi/17 bar, Swept Volume 99 µL
• BPR Assembly Pressure Setting (psi) 500 psi/34 bar, Swept Volume 93 µL
• BPR Assembly Pressure Setting (psi) 750 psi/52 bar, Swept Volume 91 µL

Our BPR Assembly offers proven outgassing protection which enhances system performance and improves pump check valve efficiency. It includes a biocompatible cartridge and provides a durable 316 stainless steel holder. It has a pressure setting of 40 psi (2.8 bar)/75 psi (5.2 bar)/100 psi (7 bar)/250 psi (17 bar)/500 psi (34 bar)/750 bar (52 bar). It comes with (1) P-761 Cartridge and (2)OD x P-201 Flangeless Fittings.

Specifications

• BPR Assembly PEEK, Pressure Setting 1000 psi

Our biocompatible, PEEK Back Pressure Regulator (BPR) Assembly delivers consistent incremental back pressure. It reliably prevents system over-pressurization or additional inline pressure for more efficient system performance. It has a 1000 psi (69 bar) pressure setting. It comes with (1) P-769, (2) P-250, (2) LT-115.

Specifications

• High Pressure Adjustable BPR

Our Biocompatible, High Pressure Adjustable BPR offers flexibility to adjust your system back pressure between 2,000 and 5, 000 psi (138 and 345 bar) completely independent of the flow. It's distinct material delivers excellent chemical resistance and is specifically designed to be inert to most solvents. it comes with (2) F-120BLK Fittings.

Specifications

Our BPR Holders work easily with any of our replacement BPR Cartridges. Each holder comes with fittings for 1/16 inches outer diameter tubing. The U-469 Holder is surface-treated to prevent galling, a potential problem with large, threaded metal parts. These Back Pressure Regulator Holders are designed to allow each cartridge to operate at its stated pressure setting when tightened to 20 in–lbs. of torque. To approximate this level of torque, first finger tighten the Holder, then tighten an additional 1/8 –1/4 turn with the supplied wrenches.

• BPR Holder Assembly - Bio

This Back Pressure Regulator (BPR) Holder is biocompatible. We designed this BPR Holder to efficiently work with any of our replacement BPR cartridges. It is made of chemically resistant PEEK. This holder comes with (2) P-250 ferrules and (2) LT-115 nuts both for 1/16 inches outer diameter tubing.

Specifications

• Stainless Steel BPR Cartridge Holder

Our Stainless Steel BPR Holder is mechanically designed to work with any of our BPR cartridges. It is specifically surface-treated to prevent galling, a potential problem with large, threaded material. Our holder has a swept volume of 4µL and comes with (2) F-300 Fittings.

Specifications

Our BPR Cartridges are manufactured from PEEK, Tefzel (ETFE), perfluoroelastomer, and gold-plated stainless steel giving it excellent chemical resistance. Our replacement cartridges will easily operate in any of the standard BPR holders. These cartridges create back pressures from 40 to 1,000 psi (2.8 to 69 bar)—all independent of flow except as noted below.

The recommended operating flow rate range for our BPR Cartridges is 0.1 mL–10 mL/min. Within this range, the amount of back pressure created by the BPR Cartridges and Assemblies will not vary more than ±10%. Lower or higher flow rates may result in larger pressure fluctuations.

• BPR Cartridge, Pressure Setting 40 psi/2.8 bar, Swept Volume 125 µL, Tan body, Blue end cap
• BPR Cartridge, Pressure Setting 75 psi/5.2 bar, Swept Volume 125 µL, Tan body, Yellow end cap
• BPR Cartridge, Pressure Setting 100 psi/7 bar, Swept Volume 125 µL, Tan body, Red end cap
• BPR Cartridge, Pressure Setting 250 psi/17 bar, Swept Volume 95 µL, Tan body, White end cap
• BPR Cartridge, Pressure Setting 500 psi/34 bar, Swept Volume 89 µL, Tan body, Green end cap
• BPR Cartridge, Pressure Setting 750 psi/52 bar, Swept Volume 87 µL, Black body, Blue end cap
• BPR Cartridge, Pressure Setting 1000 psi/69 bar, Swept Volume 83 µL, Black body, Green end cap

Our Replacement Back Pressure Regulator (BPR) Cartridge operates as an easy to use, replaceable component for our BPR systems. We constructed this cartridge from PEEK, Tefzel (EFTE), PCTFE and included a gold plated stainless steel spring delivering consistent, reliable usage. It is conveniently designed be used with any of our standard BRP Holders and creates a back pressure of 40 psi (2.8 bar)/75 psi (5.2 bar)/100 psi (7 bar)/250 psi (17 bar)/500 psi (34 bar)/750 psi (52 bar)/1000 psi (69 bar). It comes with a tan/black body with a coloured end cap.

Specifications

Pressure Relief Tees are ideal for preventing system over-pressurization. These products protect system components by diverting fluid flow automatically when inline pressure exceeds the set limit. Choose between preset 100 psi (7 bar) and 5 psi (0.3 bar) assemblies, both shipped with Flangeless Fittings.

• Pressure Relief Valve Tee Assembly 1/4-28 Threads

Our Pressure Relief Valves are ideal for preventing system over-pressurization. This Pressure Relief assembly diverts fluids automatically when inline pressure exceeds set limits. Our Pressure Relief "T" Assembly is for 1/16 inches Tubing outer diameter. This Assembly comes with a P-201 Flangeless Fitting.

Specifications

• Pressure Relief Valve Tee Assembly 5/16-24 Threads

Our Pressure Relief Valves are ideal for preventing system over-pressurization. This Pressure Relief assembly diverts fluids automatically when inline pressure exceeds set limits. Our Pressure Relief "T" Assembly is also for 3/16 inches Tubing outer diameter. This Assembly comes with a P-201 Flangeless Fitting.

Specifications

Our Pressure Relief Valves specifically prevents system over-pressurization. They deliver consistent protection to system components by diverting fluid flow automatically when inline pressure exceeds the set limit.

• Pressure Relief Valve Assembly 5 psi

Our Pressure Relief Valve Assembly specifically prevents system over-pressurization. It offers consistent protection to system components by diverting fluid flow automatically when inline pressure exceeds the set limit. Our assembly has a pressure setting of 5psi (0.3 bar) and is for 1/16 inches outer diameter tubing. It comes with (1)OD x P-201 Flangeless Fitting.

Specifications

• Press Relief Valve Assembly 100 psi

Our Pressure Relief Valve Assembly specifically prevents system over-pressurization. It offers consistent protection to system components by diverting fluid flow automatically when inline pressure exceeds the set limit. Our assembly has a pressure setting of 100psi (7 bar) and is for 1/16 inches out diameter tubing. It comes with (1)OD x P-201 Flangeless Fitting and wrenches for tightening.

Specifications