Product Description

The turbine-operated, two-piece flanged O-type cast steel ball valve is a high-performance valve designed for reliable fluid control. It features a two-piece construction, with each component crafted from premium-grade cast steel, enhancing overall strength and durability to withstand harsh operating conditions.

The O-type ball incorporates a full-bore design, meaning the inner diameter of the ball matches the nominal pipeline diameter when fully open. This minimizes fluid resistance, ensuring smooth and efficient media flow. Whether handling viscous liquids or high-velocity gases, the valve maintains minimal pressure drop for optimal system performance.

A key feature of this valve is its turbine-operated mechanism, which allows for precise and effortless operation. By simply rotating the turbine, operators can accurately control the valve’s opening and closing, making it ideal for applications requiring fine-tuned flow regulation. The turbine’s mechanical advantage reduces the effort needed for operation, even in high-pressure systems.

The flanged connection complies with standard flange dimensions, ensuring a secure, leak-proof attachment to pipelines. The bolt holes align precisely with those on pipeline flanges, allowing for easy installation using bolts and gaskets. Additionally, the gasket between the valve and pipeline flanges enhances sealing performance, effectively preventing media leakage.

Functional Parameters

1. Nominal Pressure: Typically rated from PN16 (1.6MPa) up to PN100 (10MPa) or higher, depending on application requirements. This high-pressure rating makes it suitable for various industrial settings.

2. Nominal Diameter: Available in sizes ranging from DN15 (0.6 inches) to DN300 (12 inches) or larger, enabling easy integration into different pipeline systems.

3. Body Material: Made from high-quality cast steel, such as carbon steel (e.g., ASTM A216 WCB) or alloy steel (e.g., ASTM A352 LCB for low-temperature applications), offering exceptional strength, toughness, and corrosion resistance.

4. Ball Material: Typically made of hardened stainless steel (e.g., 304 or 316 stainless steel), providing high wear and corrosion resistance for long-term reliability.

5. Sealing Material: Common options include PTFE for general applications, graphite-filled PTFE for high-temperature applications, or metal-to-metal seals, ensuring a tight seal under various conditions.

6. Operating Temperature: Ranges from -20°C to 150°C for PTFE-sealed valves, and up to 450°C or higher for valves with graphite-filled PTFE or metal-to-metal seals.

7. Flow Coefficient (Cv): The full-bore O-type design ensures a high flow coefficient, minimizing pressure loss and enhancing pipeline efficiency.

Application Fields

1. Industrial Pipelines: Widely used in the petrochemical, chemical, and pharmaceutical industries for controlling crude oil, refined products, and corrosive media.
2. Power Generation: Used in power plants to regulate steam, cooling water, and fuel gases, ensuring efficient power generation.
3. Water Treatment Facilities: Applied in water supply and wastewater treatment systems to control the flow of treated water and sewage.
4. HVAC Systems: Used in heating, ventilation, and air-conditioning systems to regulate the flow of hot and cold water, as well as refrigerant gases.