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Pressure regulators

In complex fluid systems, stable back pressure is essential for the accuracy of your analyses. IDEX Health & Science pressure regulators (formerly Upchurch Scientific) are specifically designed to improve system performance by preventing outgassing and increasing the efficiency of pump check valves. Whether you work with low pressures or UHPLC applications, IDEX offers a reliable solution for every pressure requirement.

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13 products visible
Pressure regulators
M-420 - Micro-Volume High Flow BPR 100 psi
Pressure regulators
P-465 - BPR Holder Assembly - Bio
Pressure regulators
P-612 - Pressure Relief Valve Tee Assembly 1/4-28 Threads
Pressure regulators
P-880 - High Pressure Adjustable BPR
Pressure regulators
U-455 - Pressure Relief Valve Assembly 5 psi
Pressure regulators
U-456 - Press Relief Valve Assembly 100 psi
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Pressure regulators
U-469 - Stainless Steel BPR Cartridge Holder
Pressure regulators
BPR Assembly Biocompatible
Pressure regulators
BPR Assembly
Pressure regulators
BPR Assembly w/o Cartridge
Pressure regulators
BPR Cartridge Coating
Pressure regulators
BPR Cartridge
Looking for a fitting solution?
Request a no-obligation consultation with Inacom and get in touch with one of our specialists!
Get advice!
Pressure regulators
Micro-Volume Low Flow BPR

Why choose IDEX regulators?

  • Prevent outgassing: By maintaining a constant back pressure, gases stay in solution and you prevent bubbles that can disturb your detectors.
  • Modular system: With replaceable cartridges you can easily change the pressure setting of your system without replacing the entire holder.
  • Biocompatible: Thanks to PEEK and inert polymers, the regulators are highly suitable for biological samples and aggressive media.

Back Pressure Regulator (BPR) Assemblies

These complete sets contain a holder and a cartridge. They are easy to integrate into your fluid path with the supplied fittings.

Prod. No.Pressure SettingHolder MaterialIncludesSwept Volume
P-7905 psi (0.3 bar)PEEKP-215 (2), P-200 (2)134 µL
P-79120 psi (1.4 bar)PEEKP-215 (2), P-200 (2)134 µL
P-78540 psi (2.8 bar)PEEKP-761, P-215 (2), P-200 (2)131 µL
P-78675 psi (5.2 bar)PEEKP-762, P-215 (2), P-200 (2)131 µL
P-787100 psi (7 bar)PEEKP-763, P-215 (2), P-200 (2)131 µL
P-788250 psi (17 bar)PEEKP-764, P-235 (2), P-200 (2)102 µL
P-789500 psi (34 bar)PEEKP-765, LT-115 (2), P-250 (2)96 µL
P-4551,000 psi (69 bar)PEEKP-766, LT-115 (2), P-250 (2)89 µL
U-456100 psi (7 bar)PEEKP-201 (2), P-200 (2), wrenches139 µL
U-60540 psi (2.8 bar)SSTP-761, P-201 (2), P-200 (2)129 µL
U-60675 psi (5.2 bar)SSTP-762, P-201 (2), P-200 (2)129 µL
U-607100 psi (7 bar)SSTP-763, P-201 (2), P-200 (2)129 µL
U-608250 psi (17 bar)SSTP-764, P-201 (2), P-200 (2)99 µL
U-609500 psi (34 bar)SSTP-765, P-201 (2), P-200 (2)93 µL
U-610750 psi (52 bar)SSTP-795, LT-115 (2), P-250 (2)91 µL

BPR Cartridges (Losse Cartridges)

If you want to change the pressure setting or replace a worn part, you can use separate cartridges. These have a recommended flow range of 0.1 mL/min to 10 mL/min.

Prod. No.Pressure SettingBody ColorEnd-Cap ColorSwept Volume
P-76140 psi (2.8 bar)TanBlue125 µL
P-76275 psi (5.2 bar)TanYellow125 µL
P-763100 psi (7 bar)TanRed125 µL
P-764250 psi (17 bar)TanWhite95 µL
P-765500 psi (34 bar)TanGreen89 µL
P-795750 psi (52 bar)BlackBlue87 µL
P-7961,000 psi (69 bar)BlackGreen83 µL

Ultra-Low Volume Back Pressure Regulators

For microfluidic applications where every microlitre counts, IDEX offers ultra-low volume regulators with a swept volume of only 6 µL.

Prod. No.*Back Pressure SettingFlow Rate RecommendationsRecommended Pressure RangeFor TubingSwept VolumeIncludes
M-410100 psi (7 bar) @ 0.5 mL/minOptimal: 0.1–1 mL/min Max.: 4 mL/min40–150 psi (3–10 bar)PEEK, 1/16" OD, 0.010” ID6 µLP-230, P-200
M-412500 psi (34 bar) @ 0.5 mL/minOptimal: 0.1–1 mL/min Max.: 4 mL/min250–525 psi (17–36 bar)PEEK, 1/16" OD, 0.010” ID6 µLP-230, P-200
M-420100 psi (7 bar) @ 5 mL/minOptimal: 3–8 mL/min Max.: 10 mL/min40–150 psi (3–10 bar)PEEK, 1/16" OD, 0.020” ID6 µLP-230, P-200

Instelbare Pressure Regulators

When a fixed pressure is not enough, IDEX also offers adjustable models for higher pressure ranges.

Prod. No.Pressure SettingMaterialIncludesSwept Volume
P-8802,000–5,000 psi (138-345 bar)PEEK, PTFE, and perfluoroelastomerF-120BLK (2)9 µL

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