Segmentation by type classifies the engineering approaches used to contain high‑pressure media. Mechanical seals—including single‑lip and double‑lip configurations—dominate with approximately 45% of revenue due to their adaptability to a wide pressure range and ease of maintenance. Elastomeric seals, comprising nitrile, fluorocarbon, and silicone compounds, capture 30% of the market, valued for their flexibility and chemical resistance in moderate‑pressure scenarios. Metal bellows seals, representing 15%, are favored in ultra‑high‑pressure systems where metal‑to‑metal contact ensures minimal deformation. Carbon‑composite seals, at 10%, serve niche applications requiring high temperature tolerance and low friction. Each type’s market share reflects its alignment with specific pressure ratings, temperature extremes, and material compatibility, thereby influencing overall market dynamics and guiding manufacturers’ investment in R&D and production capacity.