The Safety Valve is a critical shutdown device integrated into wellhead and surface flow control systems. When activated by pneumatic, hydraulic, or electric actuators, it ensures immediate well isolation in emergencies—such as detected hydrocarbon leaks, overpressure events, or fire—to safeguard personnel, equipment, and the environment.
Based on a robust gate-valve architecture, the valve features a high-performance actuator engineered for reliable operation under extreme pressure and extended service life. It provides fail-safe closure, with actuation times typically between 4 to 8 seconds. The assembly incorporates a mechanical locking mechanism and is designed with fire-safe construction to maintain sealing integrity under high-temperature conditions.
| Parameter | Specification |
|---|---|
| Model / Specification | AQF (for API 6A Surface Safety Valve) |
| Type | API 6A Surface Safety Valve (SSV) |
| Material | Stainless Steel (Standard) |
| Design Standard | API 6A |
| Main Function | Automatically shuts off well flow in an emergency |





We are a professional manufacturer of modern oil drilling and production equipment. Integrating design, research and development, manufacturing, sales, and service, we offer a comprehensive operational system for the petroleum industry.
Our main product line includes high-pressure wellhead and X'mas tree assemblies, BOPs, control units for BOPs, choke & kill manifolds, series of gate valves, and drilling platform pipelines. Our products are widely utilized in global oilfields across America, Africa, Europe, Oceania, Central Asia, and the Middle East.

