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The Valworx 5298 series is a digital smart valve positioner that converts a 4-20mA input signal into proportional pneumatic output for quarter-turn actuators. Many plants pair it with a direct-mount SMC solenoid valve for fast open/close control or fail-safe operation. It's the go-to choice for ball valves, butterfly valves, and other air-actuated valves where precise positioning and diagnostics are needed without high cost.
Features
Multi-function digital display shows valve position, target, and parameters
One-button auto-calibration sets zero and span quickly
Low air consumption for energy savings
Direct mount to NAMUR actuators
HART communication for setup and monitoring
Built-in diagnostics for valve performance
SMC solenoid integration for reliable pilot control
Technical Specifications
Input Signal: 4-20mA DC
Supply Pressure: 20 to 100 psi (filtered, dry, oil-free air)
Flow Capacity: 8.8 SCFM @ 20 psi
Air Consumption: 0.9 SCFM @ 20 psi
Stroke: Linear 10-150 mm, rotary 55-100°
Accuracy: High precision positioning
Display: Multi-function digital
Mounting: Direct to actuator (NAMUR)
Applications
Ball valve and butterfly valve control
Process automation in water, chemical, oil & gas
Modulating or on/off service
Systems requiring accurate positioning and diagnostics
FAQ
Q: How fast is calibration?
A: Auto-calibration usually completes in under a minute with one button.
Q: Does it work with SMC solenoids?
A: Yes – direct mount NAMUR solenoids are common in the package.
Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves
Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr...
Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves
Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr...