Valves
Sample Loops
Splitter
or Split Flow
Accessories
Replacement Parts
Valves
Flow Control
Regulators
HPLC Valves, Loops, and Flow Control Components
Chrom Tech provides a complete portfolio of IDEX and Hamilton valves, sample loops, and flow-control accessories engineered for precision chromatography. From manual and automated injection valves to check valves, splitters, and back-pressure regulators, every component is designed for durability and repeatable performance.
Our product line covers stainless-steel and PEEK flow paths to support both high-pressure analytical systems and biocompatible environments. IDEX valves and accessories ensure secure connections and consistent sample injection. We also offer Hamilton manual valves for fine control of analytical flow and a wide range of loops, syringes, and replacement parts.
Whether you’re maintaining your current system or building a new HPLC flow path, Chrom Tech delivers trusted, high-performance solutions backed by decades of chromatography expertise.
Frequently Asked Questions
What is the purpose of an injection valve in HPLC?
An injection valve introduces a precise sample volume into the HPLC flow path under high pressure, ensuring reproducible loading and accurate chromatographic results.
When should I use a back-pressure regulator (BPR)?
BPRs maintain consistent system pressure downstream of the detector to prevent solvent degassing and improve baseline stability, especially in gradient HPLC or microflow applications.
What’s the difference between a check valve and a pressure relief valve?
A check valve prevents reverse flow, protecting pumps and columns, while a pressure-relief valve (PRV) automatically releases excess pressure to safeguard sensitive components.
Can I use PEEK loops instead of stainless steel?
Yes. PEEK sample loops are ideal for biocompatible or corrosive applications where metal contact must be avoided. They handle moderate pressure and provide chemical resistance with flexibility.
