Supplier Foxboro SRD991 Intelligent Valve Positioner HART Protocol Pneumatic Control Valve Price

The Foxboro SRD991 is an intelligent electro-pneumatic valve positioner designed for precise control of pneumatic linear and rotary valve actuators. It supports 4–20 mA input with HART communication (and other protocols in different versions) and features auto-start with self-calibration, self-diagnostics, and easy local configuration via push buttons and a graphical LCD. Known for its low air consumption and robust performance, it is a reliable choice for process industries requiring accurate valve positioning with diagnostic capabilities.

• Chemical and petrochemical plants
• Oil & gas processing
• Power generation
• Refineries
• General process control valves

• Problem: Difficult calibration in the field → Solution: Auto-start with self-calibration and local push-button setup
• Problem: High air consumption → Solution: Optimized low air consumption design
• Problem: Vibration affecting performance → Solution: Low sensitivity to vibration in all directions

• Older Foxboro / Eckardt positioner models
• Foxboro SRD960 (simpler version)

• Genuine Foxboro SRD991 with full factory support
• Competitive pricing and warranty
• Local technical assistance for configuration and commissioning
• Reliable spare parts availability

• Standard HART models: 6–12 weeks typical
• Special configurations or certifications: 8–16 weeks

Please provide:

1. Actuator type (linear or rotary) and stroke/angle
2. Required communication protocol (HART, etc.)
3. Supply air pressure available
4. Hazardous area classification needs
5. Quantity & target delivery date