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Explosion-Proof Foxboro SRD991 Intelligent Valve Positioner Pneumatic Actuator Diagnostics OEM HART/Profibus IP66 Protection

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Explosion-Proof Foxboro SRD991 Intelligent Valve Positioner Pneumatic Actuator Diagnostics OEM HART/Profibus IP66 Protection

Brand Name : Foxboro

Model Number : SRD991

MOQ : 1

Price : US $1600.00 - 2200.00/ Set

Payment Terms : T/T

Supply Ability : 2000 sets per year

Delivery Time : 60 work days

Packaging Details : cardboard box

Input pressure : 1.4...6 bar

Maximum hysteresis : 0.3 %

Ambient Air Temperature for Operation : -40...80 °C (-40...176 °F)

Communication port protocol : HART, 4...20 mA Profibus FOUNDATION fieldbus

Maximum pressure : 6 bar ,90 psi

IP Degree of Protection : IP66

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Product Overview

The Foxboro SRD991 Valve Positioner is a robust digital controller that integrates seamlessly into process systems for precise pneumatic actuator management. Using piezo valve technology, it delivers fast, stable positioning for rotary and linear valves, with HART communication for enhanced diagnostics. The SRD991's vibration-resistant design and simple calibration make it a dependable choice for oil and gas, chemical, and water treatment industries. With low air consumption and modular upgrades, it supports efficient automation and reduced operational costs.

Key Features
  • Robust Piezo Valve: Ensures quick, hysteresis-free positioning.
  • HART Integration: Digital protocol for process connectivity.
  • Vibration Resistance: Stable in dynamic environments.
  • Modular Upgrades: Easy expansion to advanced models.
  • Local Display: LED for status indication.
  • Low Air Use: Energy-efficient for cost savings.
  • Universal Actuator Support: Single/double-acting rotary/linear.
  • IP66 Enclosure: Protects against dust and water.
Technical Specifications
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
Applications

The Foxboro SRD991 Valve Positioner is built for robust integration in process industries:

  • Petrochemical: Valve control in refining processes.
  • Oil and Gas: Pipeline and offshore automation.
  • Power Generation: Boiler valve positioning.
  • Chemical: Flow regulation in hazardous setups.
  • Water Treatment: Dosing system control.
Frequently Asked Questions
Why choose the SRD991 for integration?

Its HART protocol and piezo technology ensure seamless process connectivity.

Is it suitable for linear actuators?

Yes, supports 10–100 mm strokes.

What is the air supply requirement?

1.4–7 bar for optimal performance.

Does it have vibration protection?

Yes, robust design handles dynamic conditions.

How does it save energy?

Low air consumption and <1W power use.

Contact Us

Contact our team for inquiries about the Foxboro SRD991 Valve Positioner, pricing, or to schedule a demo:

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Product Tags:

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Intelligent Pneumatic Actuator with Diagnostics

      

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