Keep my session open?
Ending In 
Your shopping session has expired.
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

Upchurch Scientific® Ultra-Low Volume Back Pressure Regulators, IDEX Health & Science

M-420 M-410 M-412
Upchurch Scientific® Ultra-Low Volume Back Pressure Regulators (BPRs) were developed to minimize swept volume, which is especially important for multi-detector applications

All data in the order information below was generated using water at room temperature. The back pressure setting data was set at a flow rate of 0.5mL/min. for items 53501-328 and 53501-020, and at 5mL/min. for item 21511-650.

Note: Ultra-Low Volume Back Pressure Regulators cannot be used as check valves due to their unique internal design - try the Upchurch Scientific Micro-Volume Inline Check Valve for applications where flow must be limited to one direction.

With a maximum swept volume of only 6µL (for the back pressure regulator only – this does not include the volume of the attached tubing lines), it is nearly impossible to detect these BPRs as part of your fluid pathway. To minimize the swept volume added to your flow path, it is recommended the attached tubing length is trimmed. The BPRs completely polymeric flow path ensures biocompatibility.

Certifications: ROHS Certified.

Ordering information: Each Ultra-Low Volume BPR ships with attached PEEK™ tubing, two 53500-672 nuts, and two 21511-108 ferrules (P-230 and P-200, respectively). The inside diameter of the tubing attached to 53501-328 and 53501-020 is 0.25mm (0.010"), and 0.50mm (0.020") for 25111-650.



Expand All / Collapse All
Description Pressure Rating Recommended Flow Rate Back Pressure Supplier No. VWR Catalog Number Unit Price Quantity
High Flow 40–150 psi (3–10 bar) Recommended 3–8 mL/min.; 10 mL/min. Maximum 100 psi (6.9 bar) M-420 21511-650 Each Retrieving
Low Flow 250–525 psi (17–36 bar) Recommended 100 μL–1 mL/min.; 4 mL/min. Maximum 500 psi (34 bar) M-412 53501-020 Each Retrieving
Low Flow 40–150 psi (3–10 bar) Recommended 100 μL–1 mL/min.; 4 mL/min. Maximum 100 psi (6.9 bar) M-410 53501-328 Each Retrieving
Generate Barcodes Barcode Label Format: 
Generate PDF Catalog Page


Wetted Materials PEEK™, Perfluoroelastomer, ETFE
Enter Details

Select the article for which you are looking for Certificate

Indicate the Lot Number. This field is mandatory.

Enter Certificate Details

Enter the Lot number:

Choose from recent batch/lot numbers:

Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

Original Product:

Description Catalog Number Availability Unit Your Price Price Per Qty

A new look and a renewed commitment

Built on the features & resources you know, optimized with innovation from Avantor®. Our new brand symbolizes agility and our ability to adapt to customer needs.

Learn More Start Shopping