HPLC SAMPLE LOOP
HPLC Sample Loop
Precision HPLC injection loops for manual sample valves—stainless steel and PEEK loop options with calibrated volumes from 5 µL to 20 mL.
Choose the right HPLC loop by volume, ID and valve model (7125 / 7010 / 7725 / 9725 / 3725), then confirm the Agilent cross-reference before you order.
5 µL – 20 mL volumes
SS & PEEK materials
Manual injection valves
Agilent PN cross-ref
What Is an HPLC Sample Loop?
An HPLC sample loop is the calibrated tubing on an injection valve that defines how much sample enters the column. A correctly sized HPLC injection loop keeps quantitative results repeatable from run to run.
HIPSOUL supplies stainless steel and PEEK HPLC loops for common Rheodyne-style manual valves, with Agilent part-number cross-references on the sheet. Related hardware: HPLC fittings and HPLC capillary tubing.
How to Choose an HPLC Sample Loop
Use Find → Match → Select. Match the valve first, then volume and material—do not substitute a PEEK loop for a stainless steel path without checking solvent and pressure.
Step 1
Find the valve
Identify the injector: 7125 / 7010 / 7725 for stainless steel, or 9725 / 3725 for PEEK families on this sheet.
Step 2
Match volume & ID
Pick the injection volume you need, then confirm the listed ID (mm). Larger volumes use larger bore tubing.
Step 3
Select material
Stainless steel for routine high-pressure HPLC loops. Choose a PEEK loop when inertness or bio-sample chemistry requires it.
HPLC Sample Loop Options
Manual injection valve sample loops from the current catalog sheet. Product codes and Agilent part numbers are listed as published—confirm the valve model when requesting a quote.
Stainless Steel HPLC Sample Loop
High-pressure stainless steel HPLC loops for 7125, 7010 and 7725 manual injection valves. Volumes from 5 µL to 20 mL.
Agilent part numbers are listed per valve family where published on the sheet.
| Product code | Volume | ID (mm) | Applicable valve | Agilent part no. |
|---|---|---|---|---|
| PDB08-30061 | 5 µL | 0.18 | 7125, 7010 | 1535-4860 |
| PDB08-30061 | 5 µL | 0.18 | 7725 | 0101-1248 |
| PDB08-00059 | 10 µL | 0.20 | 7125, 7010 | 0101-0378 |
| PDB08-00059 | 10 µL | 0.30 | 7725 | 0100-1923 |
| PDB08-30062 | 20 µL | 0.50 | 7125, 7010 | 0101-0377 |
| PDB08-30060 | 20 µL | 0.30 | 7725 | 0100-1922 |
| PDB08-30063 | 50 µL | 0.50 | 7125, 7010 | 0101-0378 |
| PDB08-30063 | 50 µL | 0.50 | 7725 | 0100-1924 |
| PDB08-30064 | 100 µL | 0.50 | 7125, 7010 | 0101-0379 |
| PDB08-30064 | 100 µL | 0.50 | 7725 | 0100-1921 |
| PDB08-00068 | 200 µL | 0.75 | 7125, 7010 | 0101-1252 |
| PDB08-00068 | 200 µL | 0.75 | 7725 | 0101-1247 |
| PDB08-00069 | 500 µL | 0.75 | 7125, 7010 | 0101-1251 |
| PDB08-00069 | 500 µL | 0.75 | 7725 | 0101-1246 |
| PDB08-30070 | 1 mL | 0.75 | 7125, 7010 | 0101-1219 |
| PDB08-30070 | 1 mL | 0.75 | 7725 | 0101-1245 |
| PDB08-30168 | 2 mL | 1.00 | 7125, 7010 | 0101-1250 |
| PDB08-30168 | 2 mL | 1.00 | 7725 | 0101-1244 |
| PDB08-30072 | 5 mL | 1.00 | 7125, 7010 | 0101-1243 |
| PDB08-30072 | 5 mL | 1.00 | 7725 | 0101-1243 |
| PDB08-30073 | 10 mL | 1.00 | — | — |
| PDB08-30074 | 20 mL | 1.00 | — | — |
PEEK Loop — HPLC Injection Loop
PEEK sample loops for 9725 and 3725 valve styles. Use a PEEK loop when you need chemical inertness for bio or aggressive solvent methods.
Volumes from 5 µL to 20 mL with listed Agilent cross-references.
| Product code | Volume | ID (mm) | Applicable valve | Agilent part no. |
|---|---|---|---|---|
| PDB08-30079 | 5 µL | 0.18 | 9725 | 0101-1241 |
| PDB08-00080 | 10 µL | 0.25 | 9725 | 0101-1240 |
| PDB08-30081 | 20 µL | 0.25 | 9725 | 0101-1233 |
| PDB08-30082 | 50 µL | 0.50 | 9725 | 0101-1239 |
| PDB08-30083 | 100 µL | 0.50 | 9725 | 0101-1242 |
| PDB08-30084 | 200 µL | 0.50 | 9725 | 0101-1237 |
| PDB08-30085 | 500 µL | 0.75 | 9725 | 0101-1238 |
| PDB08-00086 | 1 mL | 0.75 | 9725 | 0101-1235 |
| PDB08-30087 | 2 mL | 0.75 | 9725 | 0101-1234 |
| PDB08-00088 | 2 mL | 1.60 | 3725 | 0101-1229 |
| PDB08-30089 | 5 mL | 0.75 | 9725 | 0101-1230 |
| PDB08-30090 | 5 mL | 1.60 | 3725 | 0101-1228 |
| PDB08-30091 | 10 mL | 2.00 | 3725 | 0101-1227 |
| PDB08-30092 | 20 mL | 2.00 | 3725 | 0101-1226 |
Stainless Steel vs PEEK HPLC Loop
| Stainless steel HPLC loop | PEEK loop | |
|---|---|---|
| Typical valves | 7125, 7010, 7725 | 9725, 3725 |
| Volume range on sheet | 5 µL – 20 mL | 5 µL – 20 mL |
| Best for | Routine high-pressure HPLC injection | Chemically demanding or bio-friendly paths |
| Selection tip | Match Agilent PN to the valve family | Confirm 9725 vs 3725 before ordering large IDs |
Material choice is application-driven. Confirm solvent compatibility and valve model before substituting one material for the other.
Why Labs Specify These HPLC Loops
Calibrated Injection Volume
Each HPLC sample loop is cut for a listed volume so injections stay repeatable.
SS & PEEK Options
Stainless steel for standard HPLC loops; PEEK loops when inertness is required.
Valve-Matched Catalog
Rows map to common manual injectors—7125 / 7010 / 7725 / 9725 / 3725.
Agilent Cross-References
Published Agilent part numbers help you replace an HPLC injection loop without guesswork.
Analytical to Prep Volumes
From 5 µL analytical plugs to 10–20 mL large-volume loops on the same sheet.
OEM Ready
HIPSOUL can label and pack HPLC sample loops for instrument makers and distributors.
HPLC Sample Loop in Context
Manufacturing and Inspection
HPLC loop lots follow the same hardware workflow used for other HIPSOUL stainless-steel and polymer consumables.
Production
Inspection
Testing
OEM HPLC Injection Loops
Need a private-label HPLC sample loop or a non-catalog volume? Send the volume, ID, material and valve model. HIPSOUL supports OEM HPLC loops for instrument and distributor programs.
- Loop volume and inner diameter
- Stainless steel or PEEK
- Injector / valve model
- Agilent or OEM part number to match
- Labeling and packaging requirements
HPLC Sample Loop FAQ
What is an HPLC sample loop?
An HPLC sample loop (also called an HPLC injection loop) is a calibrated length of tubing on a manual or automatic injection valve. It holds a fixed volume of sample so each injection delivers a repeatable amount into the mobile-phase stream.
What is the difference between a stainless steel HPLC loop and a PEEK loop?
Stainless steel HPLC sample loops are used for high-pressure analytical injectors such as 7125, 7010 and 7725 valve families. A PEEK loop is preferred when chemical inertness or biocompatibility matters, and is listed here for 9725 and 3725 valve styles.
How do I choose HPLC sample loop volume?
Match the loop volume to the injection volume you need. Smaller loops (5–100 µL) suit analytical methods. Larger loops (1–20 mL) are used when more sample must be loaded. Oversizing the loop can dilute the plug; undersizing can truncate the injection.
Are these HPLC loops cross-referenced to Agilent part numbers?
Yes. The tables list HIPSOUL product codes alongside common Agilent part numbers from the catalog sheet for the matching valve model. Confirm the valve type and PN before ordering a replacement.
Can HIPSOUL supply OEM HPLC injection loops?
Yes. Share the target volume, ID, material (stainless steel or PEEK) and injector model. Private-label HPLC sample loops can be cut and fitted for OEM programs.
Request HPLC Sample Loop Pricing
Send the valve model, volume and material (stainless steel or PEEK). We will confirm the matching HPLC loop code—or quote a custom HPLC injection loop—for your lab or OEM program.
Prefer email? [email protected]