Innovative Design of Flanged Forged Steel Ball Valves

The forged steel ball valve operates by rotating around the valve body's centerline for opening and closing. Equipped with a unique automatic pressure relief function, the sealing element is embedded in the stainless steel valve seat, ensuring bidirectional sealing and pressure relief in the middle chamber. This design allows the valve to achieve leakage sealing under varying pressure differences, making it suitable for diverse working conditions. The flange forged steel ball valve has proven effective in industries dealing with water, solvents, acids, natural gas, oxygen, hydrogen peroxide, methane, and ethylene.

Structural Features of Flange Forged Steel Ball Valves

1. Innovative Valve Seat Sealing Structure The valve seat employs a front-sealing design with bidirectional sealing and an automatic pressure relief function in the middle chamber. The floating sealing seat, loaded by a spring, ensures continuous close contact with the ball in the closed position, guaranteeing effective leakage sealing under high and low pressure differences.

2. Automatic Pressure Relief Structure In the presence of abnormal pressure increases in the middle chamber, single-sealed ball valves automatically relieve pressure, while double-sealed ball valves incorporate an additional pressure relief device on the valve body.

3. Sealed Emergency Rescue Function Featuring an auxiliary seat emergency sealing system, these valves can achieve emergency rescue by injecting the appropriate sealing agent when the sealing surface is damaged. Additionally, the auxiliary system allows flushing and lubrication of the valve seat area if necessary.

4. Antistatic Device To prevent static sparks generated during valve operation, an anti-static device is installed to discharge accumulated electrostatic charges resulting from friction between the ball seats.

5. Fire-Resistant Structure The fixed ball valves utilize a unique structure where, in the event of a fire and burning of the non-metallic sealing surface material, the metal ring uses spring elastic force to fit and seal the seat and ball, preventing fire spread and media outflow.

6. Full Bore and Reduced Bore Structures Catering to user preferences, the company offers full-bore and reduced-bore series of ball valves. The full-bore variant maintains consistent inner diameter with the pipeline for easy cleaning, while the reduced-bore valve is lightweight, offering lower fluid resistance compared to a globe valve of the same diameter.

Flange forged steel ball valves find applications in oil, natural gas, coal, and ore excavation, refining, processing, and pipeline transportation systems. They are also integral in the production of chemical products, pharmaceuticals, and food, as well as in hydropower, thermal power, and nuclear power electricity production systems. Furthermore, these valves contribute to the water supply, drainage, heating, and gas supply systems of cities and industrial enterprises, and in the drainage and irrigation systems of farmland. Their widespread use extends to governance and production systems closely tied to national defense construction and people's livelihood.