Chemical Injection Valve - HN

HN-Series forms the core barrier of all TCO’s Chemical Injection Systems and is included in all the Chemical Injection Valves.


The HN represents the conventional series with a broad range of configurations, from a single compact barrier check valve to a modular dual or triple in-line ISO 14310 V0 barrier qualified check valve system. The main purpose of the HN-Series is to create the primary seal between the production tubing and the control line.

Features and Benefits

•  Single/dual check valves
•  Special triple check valves
•  Equinor TR2385 qualified 
•  ISO 14310 V0 and 14998 V0 barrier qualified
•  Dual check valves, completes well barrier envelope 
•  High temperature up to 204 °C / 400 °F (model dependent)
•  High pressure up to 15,000 psi / 1034 bar (model dependent)
•  Testable system integrity


•  Continuous chemical injection wells
•  HPHT wells