310S high temperature flanged ball valve

Engineered for extreme thermal environments, this 2-piece flanged ball valve is constructed from 310S high-temperature austenitic stainless steel (UNS S31008 / 1.4845). It exhibits outstanding resistance to oxidation under mildly cyclic conditions up to 1035°C, making it highly effective for thermal processing, petrochemical refining, and industrial furnace applications. Equipped with an ISO 5211 integrated mounting pad, it allows direct installation of pneumatic or electric actuators without brackets, minimizing space and ensuring efficient automated operation.

Technical Specifications

• Valve Type: 2-Piece Split Body Ball Valve

• Nominal Diameter: DN50 (2 Inch)

• Nominal Pressure: PN16 (Class 150 equivalent)

• Body Material: Heat-Resistant Stainless Steel 310S / UNS S31008 / EN 1.4845

• Ball Material: Stainless Steel 310S / Solid Ball Construction

• Connection Type: RF (Raised Face) Flanged Ends

• Flange Dimension Standard: EN 1092-1 / DIN 2501 (ASME B16.5 optional)

• Top Mounting Pad: ISO 5211 Direct Mounting Pad for Actuators

• Maximum Service Temperature: Up to 1000°C (with specialized high-temp or metal seats)

• Seat Material: Flexible Graphite / Metal-to-Metal Hard Seal / PEEK (based on final temp request)

• Stem Packing: High-Purity Die-Formed Flexible Graphite Rings

• Port Configuration: Full Bore / Full Port Design

• Flow Characteristic: Linear / Equal Percentage Shutoff

• Face-to-Face Dimension: EN 558 Series 14 / DIN 3202 F4

• Stem Design: Anti-Blowout Stem with Anti-Static Device

• Operation Method: Manual Lever (with lockable handle option) or Actuated

• Wall Thickness Standard: ASME B16.34

• Inspection and Test: EN 12266-1 / API 598 Pressure Testing

• Casting Process: Investment Precision Casting (Lost Wax Process)

• Target Applications: Industrial Kilns, Furnaces, Heat Treatment Equipment, Boiler Piping Systems