Views: 0 Author: J-VALVES Publish Time: 2025-01-15 Origin: Site
• Scope: JIS B2073 specifies the requirements for steel ball valves used in industrial applications, including marine environments. It covers design, materials, dimensions, and testing to ensure reliability and safety.
• Pressure Ratings: JIS B2073 ball valvestypically have pressure ratings of 10K, 20K, and 30K, corresponding to maximum allowable working pressures of 1.0 MPa, 2.0 MPa, and 3.0 MPa, respectively.
• Temperature Range: These valves are designed to operate reliably at temperatures ranging from -20°C to 200°C, making them suitable for a variety of marine applications.
• Design Features: JIS B2073 ball valves often feature a floating ball design, which allows the ball to move slightly under pressure, ensuring a tight seal against the seat. This design provides bidirectional sealing, making it suitable for applications where flow direction may change.
• Testing: Valves undergo rigorous hydrostatic and pneumatic tests to ensure compliance with the standard. Testing protocols are designed to simulate the demanding conditions of marine environments.
• Marine Systems: JIS B2073 ball valves are widely used in marine applications, including shipboard systems, offshore platforms, and other maritime environments where reliability and durability are critical.
• Flow Control: These valves are ideal for applications requiring quick shutoff and reliable flow control, such as in cooling water systems, fuel oil systems, and hydraulic systems.
• Scope: GB/T 15188 specifies the requirements for gate valves used in marine applications. It covers design, materials, dimensions, and testing to ensure reliability and safety.
• Pressure Ratings: GB/T 15188 gate valves typically have pressure ratings ranging from PN10 to PN16, corresponding to maximum allowable working pressures of 1.0 MPa to 1.6 MPa.
• Temperature Range: These valves are designed to operate reliably at temperatures ranging from -20°C to 200°C, making them suitable for a variety of marine applications.
• Design Features: GB/T 15188 gate valves feature a wedge-shaped gate that compresses against the seat to provide tight shutoff. This design is particularly effective in on-off control applications.
• Testing: Valves undergo comprehensive testing, including hydrostatic and pneumatic tests, to ensure compliance with the standard.
• Marine Systems: GB/T 15188 gate valves are widely used in marine applications, including shipboard systems, offshore platforms, and other maritime environments where reliability and durability are critical.
• On-Off Control: These valves are ideal for applications requiring tight shutoff and on-off control, such as in bilge water systems, ballast water systems, and fire-fighting systems.
| Feature | JIS B2073 Ball Valves | GB/T 15188 Gate Valves |
| Design | Floating ball, bidirectional sealing | Wedge gate, unidirectional sealing |
| Pressure Ratings | 10K (1.0 MPa), 20K (2.0 MPa), 30K (3.0 MPa) | PN10 (1.0 MPa), PN16 (1.6 MPa) |
| Temperature Range | -20°C to 200°C | -20°C to 200°C |
| Sealing Performance | Bidirectional sealing with minimal leakage | Excellent tight shutoff in one direction |
| Materials | Stainless steel, high-temperature alloys | Carbon steel, stainless steel, high-temperature alloys |
| Safety Features | Fire-safe design, double block-and-bleed, blowout-proof stem | Fire-safe design, tight shutoff |
| Applications | Marine systems, flow control | Marine systems, on-off control |
