Flange Forged Ball Valve Description
Flange forged ball valve is a ball valve whose valve body is formed by forging process and connected to the pipeline through flange. The ball is driven by the valve stem to rotate 90° to realize fluid on-off control. The forging process makes the valve body have higher strength and is suitable for high temperature, high pressure and harsh working conditions.
Structural features
Forged steel valve body structure
The valve body is forged with high-strength forged steel (such as ASTM A105 carbon steel, F304/F316 stainless steel), with dense structure, and significantly better impact resistance and pressure bearing capacity than cast valve body;
The flange interface complies with ASME B16.5 standard, is fastened to the pipeline by bolts, has reliable sealing and is easy to disassemble and maintain.
Strengthening core components
Ball: Surface hardening treatment (such as surfacing of carbide), wear-resistant and corrosion-resistant, high sealing stability in long-term use;
Valve seat: Optional metal seal (stainless steel + sealing grease) or soft seal (PTFE/PEEK) to meet the needs of different media;
Valve stem: Anti-blowout design, directly connected to the actuator (manual/pneumatic/electric), low driving torque.
Full-bore flow channel design
The flow channel is consistent with the inner diameter of the pipeline, with extremely small pressure loss (flow resistance coefficient ≈ 0.05), suitable for large flow delivery.
Flange Forged Ball Valve Specification
Pressure rating: Class 150 to Class 2500 (up to PN420);
Diameter range: DN15 to DN300 (1/2" to 12");
Temperature limit:
Standard type: -29℃ to +200℃ (PTFE valve seat);
Extended type: -196℃ to +540℃ (metal hard seal);
Connection method: flange (ASME B16.5), butt welding (ASME B16.25).
Flange Forged Ball Valve
Advantages
Ultra-high pressure bearing capacity: Class 2500 (42MPa) has no deformation under high pressure conditions, and the safety is 50% higher than that of cast valve body;
Resistant to extreme temperatures: Metal hard sealing solution supports 540℃ high temperature or -196℃ deep cold medium;
Long life design: Combination of hardened ball and spring-loaded valve seat, opening and closing life> 100,000 times;
Low maintenance cost: Modular structure supports rapid replacement of seals, reducing downtime by 70%.
Applications
Petroleum and natural gas: High-pressure oil and gas wellhead equipment (Class 2500), key cutoff points of oil pipelines;
Energy and power: Supercritical steam pipelines (≤540℃), nuclear power cooling systems;
Specialty chemicals: Strongly corrosive media (such as concentrated sulfuric acid, liquid chlorine), high-pressure polymerization reactors;
Deep cold engineering: LNG liquefaction station (-162℃ liquid nitrogen transportation).
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