The ZQ high-performance electric metal-seated ball valve is an industrial automation execution unit specifically engineered for harsh conditions involving high temperatures, high pressures, and abrasive particulate media. This valve consists of an intelligent electric actuator and a precision-ground metal-to-metal sealed ball valve body. Its core design features metal sealing pairs on both the ball and seat, treated with hard-facing alloys such as Stellite or specialized surface hardening to maintain superior sealing integrity under extreme thermal and pressure cycles. By receiving standard analog signals from control systems, the actuator drives the ball to rotate within a 0-90 degree range, enabling high-precision proportional regulation or tight shut-off of process parameters. The ZQ series is widely utilized in sectors such as petroleum, chemical, power, and metallurgy where high cycling frequency and strict isolation are required.

Product Image of ZQ High-Performance Electric Metal-Sealed Ball Valve

Feature

1.Superior high temperature and pressure resistance:Designed with an all-metal sealing structure and high-strength cast steel or stainless steel bodies, it operates stably at temperatures up to 450°C and under high pressure drops, overcoming the limitations of soft-seated valves.
2.Erosion-resistant hard alloy seals:The sealing surfaces of the ball and seat are fully hard-faced with Stellite cobalt-based alloy or tungsten carbide spray. This extreme surface hardness resists high-velocity fluid erosion and abrasive wear from particles, significantly extending service life.
3.Bubble-tight shut-off performance:The sealing pair is processed using advanced spherical grinding technology, ensuring an exact fit between the ball and seat across various pressure gradients. Leakage classes meet ANSI Class V or VI standards for enhanced efficiency and safety.
4.Intelligent integrated electric drive:Equipped with a high-performance electronic actuator supporting 4-20mA or bus communication. Features include self-diagnosis, overload protection, and fail-in-place logic for seamless integration with remote DCS systems.
5.Low flow resistance and energy efficiency:The full-bore design ensures a smooth flow path with near-zero resistance when fully open. This maximizes throughput while minimizing pumping energy consumption within the pipeline network.
6.Reliable mechanical self-locking:The high-strength worm gear transmission provides natural self-locking. During power loss or pressure fluctuations, the valve firmly maintains its position to prevent process upsets caused by unintended movement.
7.Durable and rugged housing:The actuator features a die-cast aluminum alloy housing with an IP67 rating or above. High-performance anti-corrosion coating ensures reliability in outdoor, humid, and corrosive industrial environments.
8.Modular maintenance:The integrated modular design ensures standard interfaces between the actuator and body. Maintenance tasks, such as internal component inspection, can be performed efficiently without full valve removal from the line, reducing O&M costs.