High Temperature Metal Seated Ball Valves

Yes, when specifically designed for it. Conventional ball valves with PTFE or elastomer seats degrade at high heat, but metal seated ball valves replace these soft seats with hardened metal or metal-alloy seating surfaces, allowing them to maintain shutoff integrity, pressure class ratings, and cycle life in high-temperature, abrasive, or thermal cycling service.

Metal seated ball valves use hardened metal alloys, such as stainless steel or tungsten carbide overlays, for the sealing surface between the ball and seat instead of elastomer or PTFE materials. This design withstands higher temperatures, abrasive media, and repeated cycling without the wear or extrusion issues common to soft-seated valves.

Metal seated ball valves are common in oil and gas drilling and production, thermal oil and steam systems, power generation, and heavy industrial processes involving abrasive slurries, high-pressure steam, or elevated process temperatures where soft-seated valves would fail prematurely.

Metal seated ball valves significantly outperform soft seated designs in abrasive service because the hardened seat material resists erosion and scoring from particulates. This results in longer service life, more consistent shutoff, and reduced maintenance frequency in slurry, sand-laden, or catalyst-bearing fluid applications.

Generally yes, metal seated ball valves carry a higher upfront cost due to precision machining, hardened alloy seats, and tighter tolerances required for reliable metal-to-metal sealing. However, their extended service life and reduced downtime in high-temperature or abrasive applications often result in lower total cost of ownership.

Metal seated ball valves typically achieve Class IV to Class VI shutoff per industry leakage standards, which allows minor seepage compared to the bubble-tight shutoff of soft seats. This trade-off is accepted in high-temperature and abrasive service where soft seats would fail entirely.