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Original HART Protocol Valve Controller Foxboro Pneumatic Control Valve SRD991 Intelligent Valve Positioner

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US $1299.00 - 1330.00 / Units
Price
Original HART Protocol Valve Controller Foxboro Pneumatic Control Valve SRD991 Intelligent Valve Positioner
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Features
Specifications
Communication: HART 7
Housing And Cover: Aluminum (Alloy No. 230) Powder Coated
Protection Class: IP 66/Type 4X
Ambient Temperature: -40 ... 85°C (-40 ... 185°F)
Supply Air Pressure: 1.4-10 Bar (20-145 Psig)
Signal Range: 4-20mA
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HART Protocol Valve Controller

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Foxboro Pneumatic Control Valve

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SRD991 Intelligent Valve Positioner
Basic Infomation
Brand Name: Foxboro
Model Number: SRD991
Document: xiangjing valve&instrument ...t .pdf
Payment & Shipping Terms
Packaging Details: Carton + Wooden Case + Protection
Delivery Time: 60-90 working days
Payment Terms: T/T
Supply Ability: 1000 units per year
Product Description

Foxboro SRD991 Intelligent Valve Positioner with HART Protocol

Product Overview
The Foxboro SRD991 is a HART-enabled intelligent valve positioner designed for precise pneumatic control in industrial automation. Part of Foxboro’s SRD series, it combines advanced diagnostics with robust construction to ensure reliable performance in critical processes. Compatible with Foxboro pneumatic control valves, this device supports seamless integration with plant automation systems.

Key Features
1. HART Protocol Support

  • HART 7 communication for remote configuration and diagnostics
  • Multi-drop network capability for reduced wiring costs

2. Advanced Diagnostics

  • Valve signature analysis for predictive maintenance
  • Self-diagnostics with LED status indicators

3. Robust Design

  • IP66/NEMA 4X enclosure for outdoor/indoor use
  • Operating temperature: -40°C to 85°C

4. Compatibility

  • Supports linear/rotary pneumatic actuators
  • Compatible with Foxboro SRD990 series valves

Technical Specifications

Parameter Specification
Input/Output 4-20mA DC (HART 7), pneumatic output 0.2-1 bar
Accuracy ±0.5% full scale (linear), ±0.8° (rotary)
Communication HART 7, optional Foundation Fieldbus
Power Supply 18-30V DC (loop-powered)
Environmental Rating IP66, NEMA 4X
Temperature Range -40°C to 85°C (-40°F to 185°F)
Certifications ATEX, IECEx, CSA, SIL 2 (optional)

Applications

  • Industries: Oil & gas, chemical processing, power generation
  • Processes: Flow control, pressure regulation, batch processing
  • Environments: General-purpose plants, non-hazardous areas

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