Views: 0 Author: J-VALVES Publish Time: 2024-10-31 Origin: Site
Overview of Ball Valves (API 6D)
API 6D ball valves are quarter-turn valves designed for pipeline and industrial applications. They are known for their robustness and ability to handle high-pressure and high-flow conditions, making them ideal for critical operations in the oil and gas sector.
• Design: API 6D ball valves feature a fixed ball structure with bidirectional sealing capabilities.
• Material: Typically made from high-grade steel alloys to withstand harsh conditions.
• Performance: Excellent sealing, quick operation, and low maintenance requirements.
Overview of Gate Valves (GB/T 12234)
GB/T 12234 gate valves are linear motion valves used for on-off control in various industrial applications, including oil and gas. They are designed to provide a tight seal when fully closed and are suitable for high-pressure environments.
Key Features
• Design: GB/T 12234 gate valves use a wedge-shaped gate to control flow, with options for rising or non-rising stem mechanisms.
• Material: Made from cast iron, steel, or stainless steel, depending on the application.
• Performance: Excellent sealing capabilities and ease of maintenance.
Design and Structural Differences
| Feature | API 6D Ball Valves | GB/T 12234 Gate Valves |
| Valve Type | Quarter-turn ball valve | Linear motion gate valve |
| Structure | Fixed ball with bidirectional sealing | Wedge gate with unidirectional sealing |
| Material | High-grade steel alloys | Cast iron, steel, or stainless steel |
| Size Range | Larger diameters (NPS 4 - 60) | Various sizes, including smaller diameters |
| Pressure Rating | High-pressure applications (up to 2500 psi) | High-pressure applications (varies by material) |
Performance and Functional Differences
| Feature | API 6D Ball Valves | GB/T 12234 Gate Valves |
| Flow Control | High-flow applications | On-off control |
| Sealing | Bidirectional with low leakage | Unidirectional with excellent tightness |
| Operation | Quick quarter-turn operation | Linear motion with multiple turns |
| Maintenance | Low maintenance with fewer moving parts | Requires more maintenance due to complex mechanism |
| Durability | High durability with low wear | Higher wear on the gate and seat |
