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Class 1500 valves are engineered for pipelines and systems requiring pressure ratings up to 248–255 bar at 25°C, depending on the material. They are commonly used in power generation, oil & gas, refining, chemical processing, and other high-risk environments.
A class 1500 valve made of 316 stainless steel, for instance, can sustain 248 bar of pressure at 25 ºC, but only 166 bar at 250 ºC. However, in Carbon Steel A105, it can work up to 255 bar at 25ºC and only 209 bar at 250ºC.
Gangye manufactures a full range of Class 1500 valves designed for high-pressure, high-temperature, and severe working conditions. With advanced machining equipment, strict testing systems, and certified quality control, our valves ensure reliable sealing performance and long service life.
A power station gate valve is engineered for high-temperature and high-pressure conditions typically found in power generation plants. It ensures reliable isolation and control of steam and water flow. Robust in design, these valves are crucial for efficient and safe power plant operations.
| Valve Type | Main Function | Key Features | Typical Applications |
| Gate Valve (Class 1500) | On–off isolation; full open/close | • Straight-through flow path for very low pressure drop • Suitable for high-pressure and large-diameter pipelines • Not recommended for throttling (may cause seat wear or vibration) | Oil & gas pipelines, water transmission, high-pressure isolation lines |
| Electric Gate Valve (Class 1500) | Automated open/close control | • Motorized operation for remote or hazardous environments • Maintains full-bore, low-resistance flow characteristics • Ideal for automated industrial systems | Chemical plants, power plants, gas distribution, automatic pipeline control |
| Power Station Gate Valve (Class 1500) | High-pressure, high-temperature isolation | • Designed for extreme steam/water conditions in power plants • Robust structure for reliable sealing under thermal stress • Long-term stability under continuous cycling | Power generation units, boiler systems, high-temperature steam lines |
| Globe Valve (Class 1500) | Flow control and throttling | • Excellent throttling accuracy and flow regulation • Strong sealing performance for frequent operation • Higher pressure drop compared to gate/ball valves | Steam systems, cooling water loops, process pipelines requiring flow adjustment |
| Ball Valve (3-Way, Class 1500) | Fast shutoff; multi-port flow switching | • Quarter-turn operation for quick open/close • Tight shutoff and long service life • Not ideal for fine throttling or modulating control | Oil & gas processing, chemical lines, multi-direction flow switching |
| 3-Way Valve (General) | Diverting or mixing flow | • Directs flow between two or more pipelines • Suitable for mixing, distribution, or switching circuits | Process control, pipeline networks needing routing flexibility |
| Check Valve (Class 1500) | Prevents backflow; protects equipment | • Fully automatic one-direction flow control • Protects pumps and systems from reverse flow or pressure surges • Simple structure with reliable performance | Pump discharge lines, high-pressure pipelines, oil/water systems |
Used across industries requiring high safety and reliability:
Power generation (especially power station steam systems)
Oil & gas pipelines
Petrochemical plants
Refinery high-pressure lines
Chemical manufacturing
High-temperature steam systems
Class 1500 valves are designed with features to handle high-pressure applications. These may include reinforced valve bodies, thicker walls, heavy-duty materials, robust sealing mechanisms, and enhanced pressure containment capabilities to ensure reliable and safe operation under extreme pressure conditions.
Yes, Class 1500 valves can be used for both on-off and throttling applications. However, the specific valve type and design may influence their suitability for a particular application. Gate valves class 1500 are often preferred for on-off service, while globe valves class 1500 or class 1500 ball valves are commonly used for throttling or control applications.
Strong Production Capability
Gangye is equipped with over 130 pressure-testing systems, CNC lathes, vertical lathes, boring machines, milling machines, plasma welding machines, heat-treatment furnaces, and more—supporting stable, large-scale production.
Advanced Testing & Quality Assurance
We use spectrum analyzers, hardness testers, ultrasonic testing, magnetic particle inspection, and universal material testing machines to ensure durability and safety.
Skilled Team for Complex & Urgent Orders
Our experienced engineers handle high-difficulty designs, tight tolerances, and urgent delivery requirements.
Global Certifications
Certified for pressure pipeline manufacturing, the company meets international standards in quality, environmental, and safety management, including ISO 9001, ISO 14001, OHSAS 18001, CE, and API 600.
