Edelstahl-Flanschkugelventil

Comprehensive Description of Stainless Steel Flanged Ball Valves (Including High-Pressure, Low-Temperature, American Standard, German Standard, and Lined Fluoroplastic Types)

Stainless steel flanged ball valves are widely used in various industrial applications due to their excellent corrosion resistance, reliable sealing, and easy quarter-turn operation. Depending on specific working conditions and standards, they can be designed as high-pressure ball valves, low-temperature ball valves, American standard ball valves, German standard ball valves, or lined fluoroplastic (PFA/FEP) ball valves.

• High-Pressure Ball Valves: Designed for systems with pressures up to 42.0 MPa (Class 2500 or higher). They feature reinforced stems, heavy-duty floating or trunnion-mounted ball designs, and robust sealing materials such as PEEK or metal seats. Common materials include forged stainless steel (F304/F316) or duplex stainless steel. These valves are ideal for oil & gas, hydraulic systems, and high-pressure water injection.

• Low-Temperature Ball Valves: Suitable for cryogenic service down to -196°C (-320°F). They are manufactured with special low-temperature impact-tested materials (e.g., CF8M or LF2) and feature extended bonnets to protect the packing from freezing. Typical applications include LNG (liquefied natural gas), liquid oxygen, and other cryogenic fluid handling systems.

• American Standard Ball Valves: Manufactured according to ASME/ANSI standards, including dimensions per ASME B16.10, pressure ratings per ASME B16.34 (Class 150, 300, 600, etc.), and end connections per ASME B16.5 (flanged) or ASME B16.25 (butt weld). They are widely used in petrochemical, power generation, and refining industries worldwide.

• German Standard Ball Valves: Designed to DIN/EN standards, such as DIN 2542-2545 (PN10 to PN40 flanges) or DIN 3202 (face-to-face dimensions). These valves are common in European industrial systems, offering interchangeability with European pipeline components. They feature high-quality stainless steel construction and reliable sealing for water, steam, gas, and chemical services.

• Lined Fluoroplastic Ball Valves: Internally lined with PFA, FEP, or PTFE for extreme chemical resistance against corrosive acids, alkalis, and solvents. The ball and body are fully encapsulated with fluoroplastic, ensuring zero metal contact with the medium. These valves are ideal for hydrochloric acid, sulfuric acid, aqua regia, and other aggressive fluids at temperatures up to 180°C (356°F). They combine the mechanical strength of stainless steel with the corrosion resistance of fluoroplastics.

All these stainless steel flanged ball valves can be equipped with various actuation options: manual lever, gear operator, pneumatic actuator, or electric actuator. They are available with RF (raised face) or RTJ (ring-type joint) flanges, and with fire-safe design, anti-static device, and blow-out proof stem upon request.

Whether you need high-pressure, low-temperature, American standard, German standard, or lined fluoroplastic ball valves, stainless steel flanged ball valves offer reliable, durable, and efficient flow control solutions for demanding industrial environments.