Good Price Flow Control Valve Positioner Foxboro SRD991 Intelligent Digital Valve Positioner HART Fieldbus
The Foxboro SRD991 Valve Positioner is a precision-engineered digital controller that converts 4-20 mA input signals into pneumatic outputs for accurate positioning of rotary and linear valve actuators. Featuring advanced piezo valve technology and HART communication, it ensures fast response times and stable operation in dynamic processes. Designed for simplicity, the SRD991 offers easy calibration with push-button controls and a local display, making it ideal for chemical, oil and gas, and power generation industries. Its compact design and low air consumption enhance efficiency and reliability in automated valve systems.
- Precision Piezo Technology: Fast, accurate positioning with minimal hysteresis.
- HART Communication: Digital access for configuration and diagnostics.
- Simple Calibration: Push-button zero/span adjustment for quick setup.
- Local Display: LCD for real-time monitoring and status.
- Low Air Consumption: Efficient operation reduces energy costs.
- Compact Enclosure: IP66 rating for harsh environments.
- Universal Mounting: Compatible with rotary and linear actuators.
- Robust Vibration Resistance: Stable performance in dynamic conditions.
| Parameter | Specification |
|---|---|
| Input Signal | 4-20 mA HART |
| Air Supply Pressure | 1.4–7 bar (20–100 psi) |
| Stroke Range | Linear: 10–100 mm; Rotary: 90–120° |
| Linearity | ±0.5% of span |
| Hysteresis | ±0.3% of span |
| Repeatability | ±0.2% of span |
| Temperature Range | -40°C to +80°C (-40°F to +176°F) |
| Enclosure Rating | IP66 |
| Power Consumption | <1 W |
| Certifications | ATEX, FM, CSA, SIL 2 |
The Foxboro SRD991 Valve Positioner is optimized for precision control in industrial processes:
- Chemical Processing: Accurate valve positioning in reactors.
- Oil and Gas: Reliable actuator control in pipelines.
- Power Generation: Precise flow regulation in turbines.
- Water Treatment: Flow control in treatment plants.
- Pharmaceutical: Hygienic valve automation.
Fast, with piezo technology for quick positioning.
Yes, for digital configuration and diagnostics.
Yes, designed for dynamic environments.
Rotary and linear, single/double-acting.
Push-button zero/span for simple adjustment.
For more information about the Foxboro SRD991 Valve Positioner, pricing, or to request a demo, contact our team:
- Email: shawn@gongboshi.com
- Phone: +8619173917882
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.