ZJHJ pneumatic angle-type control valve is an industrial automation execution unit specifically designed for harsh conditions such as high pressure drops, high viscosity, and media containing suspended particles or fibers. The valve consists of a high-performance multi-spring pneumatic diaphragm actuator and a 90-degree angle-style single-seated valve body. By receiving standard 4-20mA DC analog signals from the control system, the thrust generated by the diaphragm chamber drives the stem for linear displacement, precisely changing the flow area between the plug and the seat. Due to its unique angle structure, which simplifies flow direction and provides excellent self-cleaning capabilities, this valve is widely used in key process points within the petroleum, chemical, power, and metallurgical industries where suppression of flashing and cavitation and prevention of media clogging are required.

Product Image of ZJHJ Pneumatic Angle Control Valve

Feature

1. Optimized angle flow path design:The right-angle layout of the inlet and outlet ensures a simple and smooth flow path with a minimal resistance coefficient. This significantly reduces turbulence and pressure loss during media passage and effectively prevents the accumulation of high-viscosity or slurry media in dead zones within the valve.
2.Exceptional self-cleaning and erosion resistance:By utilizing the characteristic of the medium directly flushing the plug and seat, it possesses excellent self-cleaning capabilities. The flow design guides high-velocity fluids smoothly, making it particularly suitable for special media prone to scaling or containing suspended particles and fibers.
3.Compact multi-spring drive mechanism:Equipped with a compact multi-spring pneumatic diaphragm actuator, providing high output force and rapid response. Compared to traditional actuators, the overall height and weight are greatly reduced, effectively lightening pipeline loads and saving installation space.
4.Stable and reliable top-guided structure:The large-area top-guided design ensures excellent concentricity of the plug throughout the full stroke. This robust guiding system effectively resists vibrations caused by fluid impact, extending the service life of the valve.
5.High-precision proportional regulation characteristics:The plug profile is precision-engineered based on fluid dynamics to provide linear or equal percentage flow characteristics. Paired with an intelligent valve positioner, it achieves extremely high repeatable positioning accuracy, ensuring real-time stability of process parameters.
6.Intrinsically safe and fail-safe function:The drive source is clean compressed air, involving no risk of electrical sparks and providing inherent explosion-proof attributes. Fail-safe reset modes (full open or full close) can be configured based on safety process requirements, ensuring system safety during air supply failure.
7.Material durability and long-life design:Body and internals are available in cast steel, stainless steel, or with Stellite hard-facing on surfaces. The hardened sealing surfaces provide extreme hardness and corrosion resistance, capable of handling high pressure drops and erosive conditions over the long term.
8.Convenient modular rapid maintenance:The refined structure ensures high component interchangeability. Featuring a top-entry design, sealing pairs can be inspected and replaced online by extracting the actuator without removing the pipeline, significantly reducing maintenance costs.