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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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 Setting	Holder Material	Includes	Swept Volume
P-790	5 psi (0.3 bar)	PEEK	P-215 (2), P-200 (2)	134 µL
P-791	20 psi (1.4 bar)	PEEK	P-215 (2), P-200 (2)	134 µL
P-785	40 psi (2.8 bar)	PEEK	P-761, P-215 (2), P-200 (2)	131 µL
P-786	75 psi (5.2 bar)	PEEK	P-762, P-215 (2), P-200 (2)	131 µL
P-787	100 psi (7 bar)	PEEK	P-763, P-215 (2), P-200 (2)	131 µL
P-788	250 psi (17 bar)	PEEK	P-764, P-235 (2), P-200 (2)	102 µL
P-789	500 psi (34 bar)	PEEK	P-765, LT-115 (2), P-250 (2)	96 µL
P-455	1,000 psi (69 bar)	PEEK	P-766, LT-115 (2), P-250 (2)	89 µL
U-456	100 psi (7 bar)	PEEK	P-201 (2), P-200 (2), wrenches	139 µL
U-605	40 psi (2.8 bar)	SST	P-761, P-201 (2), P-200 (2)	129 µL
U-606	75 psi (5.2 bar)	SST	P-762, P-201 (2), P-200 (2)	129 µL
U-607	100 psi (7 bar)	SST	P-763, P-201 (2), P-200 (2)	129 µL
U-608	250 psi (17 bar)	SST	P-764, P-201 (2), P-200 (2)	99 µL
U-609	500 psi (34 bar)	SST	P-765, P-201 (2), P-200 (2)	93 µL
U-610	750 psi (52 bar)	SST	P-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 Setting	Body Color	End-Cap Color	Swept Volume
P-761	40 psi (2.8 bar)	Tan	Blue	125 µL
P-762	75 psi (5.2 bar)	Tan	Yellow	125 µL
P-763	100 psi (7 bar)	Tan	Red	125 µL
P-764	250 psi (17 bar)	Tan	White	95 µL
P-765	500 psi (34 bar)	Tan	Green	89 µL
P-795	750 psi (52 bar)	Black	Blue	87 µL
P-796	1,000 psi (69 bar)	Black	Green	83 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 Setting	Flow Rate Recommendations	Recommended Pressure Range	For Tubing	Swept Volume	Includes
M-410	100 psi (7 bar) @ 0.5 mL/min	Optimal: 0.1–1 mL/min Max.: 4 mL/min	40–150 psi (3–10 bar)	PEEK, 1/16" OD, 0.010” ID	6 µL	P-230, P-200
M-412	500 psi (34 bar) @ 0.5 mL/min	Optimal: 0.1–1 mL/min Max.: 4 mL/min	250–525 psi (17–36 bar)	PEEK, 1/16" OD, 0.010” ID	6 µL	P-230, P-200
M-420	100 psi (7 bar) @ 5 mL/min	Optimal: 3–8 mL/min Max.: 10 mL/min	40–150 psi (3–10 bar)	PEEK, 1/16" OD, 0.020” ID	6 µL	P-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 Setting	Material	Includes	Swept Volume
P-880	2,000–5,000 psi (138-345 bar)	PEEK, PTFE, and perfluoroelastomer	F-120BLK (2)	9 µL

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Pressure regulators

Why choose IDEX regulators?

Back Pressure Regulator (BPR) Assemblies

BPR Cartridges (Losse Cartridges)

Ultra-Low Volume Back Pressure Regulators

Instelbare Pressure Regulators

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