Ultra-Seal Series 300 ball valves are two-piece, full-bore, flanged, seat-supported ball valves designed in accordance with ASME B16.34 and ISO 14313/API 6D standards. The series offers three seating options — graphite, metal and PTFE (polytetrafluoroethylene) soft seat — which allows engineers to select seat designs for temperatures as low as –196C and as high as 450C. For applications involving abrasive or corrosive fluids, the Series 300 valves are available with a range of coating materials, including tungsten carbide, nickel alloy and chromium carbide. The PTFE soft-seated design is recommended for maximum chemical compatibility with minimum coefficient of friction. — Tyco Flow Control, Princeton, N.J.
Ball valves with three seating options — graphite, metal and soft
| By Chemical Engineering