TA2 Floating Ball Valve, DN50, PN25, Metal Seat

Descripción del producto

El TA2 Floating Ball Valve DN50 PN25 with Metal Seat is an industrial shut-off valve designed for corrosive fluid handling applications where material compatibility, mechanical reliability, and durable sealing performance are essential.

Manufactured with TA2 commercially pure titanium, this floating ball valve offers excellent corrosion resistance in many suitable chemical and marine environments. TA2 titanium is widely used in industrial equipment because of its protective oxide film, which contributes to its resistance to corrosion in compatible service conditions.

The floating ball design uses differential fluid pressure to press the ball against the downstream seat, providing shut-off performance when properly selected for the operating conditions. The metal-seated configuration is intended for applications where a metal-to-metal sealing interface is preferred over conventional soft-seat designs, subject to the specified leakage class, seat construction, and surface treatment.

With a nominal size of DN50 and a nominal pressure rating of PN25, this valve is designed for compatible industrial piping systems requiring reliable on-off flow control. The final operating pressure and temperature limits must be confirmed against the manufacturer’s approved technical documentation.

Key Features and Benefits

• TA2 Titanium Construction: Provides corrosion resistance in a wide range of compatible industrial media.
• Metal Seat Design: Supports applications requiring a metal sealing interface and resistance to selected operating conditions.
• Floating Ball Structure: Uses line pressure to assist ball-to-seat sealing.
• Quarter-Turn Operation: Enables convenient opening and closing through a 90-degree rotation.
• DN50 Nominal Size: Suitable for piping systems designed for a DN50 valve.
• PN25 Nominal Pressure Rating: Intended for compatible pressure-rated systems, subject to the applicable pressure-temperature limits.
• Industrial Corrosion Protection: Helps reduce corrosion-related maintenance when the titanium grade is compatible with the process medium.

Especificaciones técnicas

Note: Confirm whether TA2 applies to the valve body only or to all specified wetted components. The metal seat material, surface treatment, leakage class, connection dimensions, and pressure-temperature ratings should be stated in the final product datasheet.

Why Choose TA2 Titanium for a Metal-Seated Ball Valve?

TA2 is a commercially pure titanium grade valued for its corrosion resistance, moderate mechanical strength, and fabrication characteristics. Its naturally formed titanium oxide film helps protect the surface in many compatible environments.

For industrial valve applications, TA2 may be considered for selected seawater systems, chemical processing equipment, and corrosive fluid pipelines. However, titanium is not universally resistant to every acid, chemical concentration, or process condition. The exact medium, temperature, concentration, impurities, and flow conditions must be evaluated before material selection.

Combining a titanium valve body with a metal-seated floating ball design can be advantageous where both corrosion resistance and a robust sealing interface are required. Actual wear resistance and sealing performance depend on the seat and ball materials, hardness pairing, surface finish, and operating conditions.

Why Choose a Metal-Seated Floating Ball Valve?

Metal-seated ball valves use metallic sealing surfaces rather than relying exclusively on polymeric seats. Depending on their construction, they may be suitable for services involving elevated temperatures, abrasive particles, or operating conditions that are unsuitable for certain soft-seat materials.

Potential benefits include:

• Resistance to selected high-temperature operating conditions when the complete valve assembly is properly rated.
• A durable sealing interface for applications where soft seats may experience unacceptable wear or deformation.
• Suitability for selected abrasive or demanding process services, depending on seat design and particle characteristics.
• Compatibility with specialized industrial applications requiring metallic sealing components.

Metal-seated valves do not automatically provide zero leakage. Their achievable shut-off performance depends on machining precision, sealing geometry, surface treatment, differential pressure, and the specified leakage acceptance criteria.

Aplicaciones típicas

The TA2 Floating Ball Valve DN50 PN25 Metal Seat may be considered for the following applications, subject to material and design verification:

• Chemical Processing: Isolation of compatible corrosive process fluids.
• Marine Engineering: Selected seawater and marine fluid systems.
• Plantas desalinizadoras: Corrosion-resistant fluid isolation in compatible process services.
• Industrial Water Treatment: Selected chloride-containing water and treatment systems.
• Specialty Chemical Manufacturing: Pipeline isolation where titanium compatibility is established.
• Industrial Process Systems: On-off flow control in applications requiring metal seating.

For services containing abrasive solids, strong acids, oxidizing chemicals, or high-temperature fluids, both material compatibility and sealing-system suitability should be reviewed by the valve manufacturer or a qualified engineer.

How to Select the Right TA2 Metal-Seated Ball Valve

Before purchasing a TA2 Floating Ball Valve DN50 PN25, consider the following factors:

1. Process Medium: Identify the chemical composition, concentration, impurities, and corrosive characteristics of the fluid.
2. Operating Conditions: Confirm normal and maximum pressure, temperature, flow velocity, and pressure fluctuations.
3. Metal Seat Configuration: Specify the seat alloy, coating or hard-facing treatment, ball material, and required leakage class.
4. Connection Type: Confirm the required flange standard, facing, pressure class, and face-to-face dimensions.
5. Operating Method: Determine whether manual, pneumatic, or electric operation is required.
6. Design and Testing Requirements: Identify the applicable valve design, inspection, and pressure-testing standards.
7. Material Certification: Specify the required material test certificates and inspection documentation.

Preguntas frecuentes

What is a TA2 Floating Ball Valve?

A TA2 Floating Ball Valve is a quarter-turn valve manufactured using commercially pure titanium grade TA2 for specified valve components. It is designed to isolate compatible process fluids while providing corrosion resistance in suitable industrial environments.

What does DN50 PN25 mean?

DN50 indicates a nominal valve size of 50 mm, approximately corresponding to NPS 2. PN25 indicates a nominal pressure designation of 25 bar under the applicable rating system. The actual allowable working pressure depends on temperature, design, materials, and the relevant standards.

What is the advantage of a metal seat?

A metal seat provides a metallic sealing interface that can be designed for demanding operating conditions where some soft-seat materials may be unsuitable. Performance depends on the selected materials, surface treatment, operating temperature, and required leakage class.

Is TA2 titanium suitable for seawater?

TA2 titanium generally offers excellent resistance to seawater corrosion under suitable conditions. However, the complete valve assembly must also be evaluated, including the seat, ball, stem, fasteners, and any dissimilar-metal interfaces.

Can this valve be used for high-temperature service?

Potentially, but the PN25 designation and metal-seat construction alone do not establish a maximum operating temperature. The allowable temperature depends on the complete valve design, titanium properties, seat materials, stem seals, and manufacturer ratings.

Does a metal-seated ball valve provide zero leakage?

Not necessarily. Metal-seated valves may have different allowable leakage levels depending on their design and applicable test criteria. The required leakage class should be confirmed before ordering.

Conclusión

El TA2 Floating Ball Valve DN50 PN25 Metal Seat is a potential solution for industrial on-off flow control where titanium corrosion resistance and a metallic sealing interface are required. Its suitability depends on the compatibility of TA2 titanium with the process medium and on the valve’s seat design, pressure-temperature rating, and specified leakage performance.

For a technical quotation, provide the process medium, operating pressure, operating temperature, connection standard, required leakage class, and metal seat material. These details help ensure that the final valve configuration meets the actual application requirements.