“Special” ball valves typically refer to valves designed for specific or unique applications beyond the standard requirements of industrial processes. These specialized ball valves may feature unique materials, designs, or configurations tailored to address specific challenges or operating conditions. Here are some examples of industrial special ball valves and their applications:

High-Temperature Ball Valves:

• Designed to withstand extreme temperatures beyond the capabilities of standard ball valves.
• Applications: Power generation, steam systems, chemical processing, and aerospace.

Cryogenic Ball Valves:

• Designed to handle extremely low temperatures, typically below -150°C (-238°F).
• Materials are selected for their ability to maintain strength and flexibility at cryogenic temperatures.
• Applications: Liquefied natural gas (LNG) storage and transportation, cryogenic processing, and aerospace.

Subsea Ball Valves:

• Specifically designed for offshore or subsea applications, where valves must withstand high pressures and corrosive seawater environments.
• Features include corrosion-resistant materials, robust construction, and sealing mechanisms designed for underwater operation.
• Applications: Offshore oil and gas production, underwater pipelines, and marine exploration.

Fire-Safe Ball Valves:

• Designed to maintain integrity and prevent leakage during fire exposure.
• Typically certified to industry standards such as API 607 or ISO 10497 for fire safety.
• Applications: Oil and gas refineries, chemical plants, and other facilities where fire safety is critical.

Trunnion-Mounted Ball Valves:

• Feature additional support from trunnion-mounted ball designs, providing enhanced stability and sealing performance, especially in high-pressure applications.
• Suitable for applications requiring tight shut-off and resistance to high pressures.
• Applications: Oil and gas pipelines, refining, petrochemical, and power generation.

Three-Way and Multi-Port Ball Valves:

• Designed with multiple ports or pathways to allow for complex flow configurations, diverting flow between different lines or combining flows.
• Used in applications requiring mixing, diverting, or isolating multiple fluid streams.
• Applications: Chemical processing, pharmaceuticals, and water treatment.

Control Ball Valves:

• Equipped with actuators for automated control of flow rate, pressure, or temperature.
• Used in process control systems where precise regulation of fluid parameters is required.
• Applications: Chemical processing, oil and gas production, HVAC systems, and manufacturing.

Sanitary Ball Valves:

• Designed for hygienic applications in industries such as food and beverage, pharmaceuticals, and biotechnology.
• Constructed with materials and finishes suitable for clean-in-place (CIP) and sterilization-in-place (SIP) processes.
• Applications: Food processing, pharmaceutical manufacturing, and bioprocessing.

These are just a few examples of specialized industrial ball valves designed to meet specific requirements or operating conditions beyond the standard applications. Each type of special ball valve is engineered with unique features to ensure optimal performance and reliability in its intended environment.