The flanges we supply are commonly used in crude and product pipelines, refinery processing units, offsite piping, storage and transfer systems, and utility services. These systems run continuously, so fit-up accuracy and sealing performance matter just as much as the material grade itself.
We regularly manufacture and supply flanges in carbon steel, alloy steel, stainless steel, and other grades suitable for refinery service. Weld neck, blind, slip-on, RTJ, and other configurations are selected based on design requirements and service conditions, not convenience. In refinery work, even small dimensional issues can cause delays during installation.
Documentation is something we take seriously, because refinery inspections are rarely quick. For KNPC projects, inspectors usually expect mill test certificates that are easy to follow, clear heat number traceability, and inspection records that actually match the flange delivered. Before dispatch, we go through the paperwork carefully to avoid questions later at site.

