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Original Foxboro SRD991 Digital Valve Positioner Profibus PA HART 7 Valve Controller for Oil Gas Industry

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US $1650.00 - 1880.00/ Set
Price
Original Foxboro SRD991 Digital Valve Positioner Profibus PA HART 7 Valve Controller for Oil Gas Industry
Features Gallery Product Description Ratings & Review Request A Quote
Features
Specifications
Input Pressure: 1.4...6 Bar
Ambient Air Temperature For Operation: -40...80 °C (-40...176 °F)
Communication Port Protocol: HART, 4...20 MA Profibus FOUNDATION Fieldbus
IP Degree Of Protection: IP66
Maximum Pressure: 6 Bar ,90 Psi
Pneumatic Operation: Single Acting ,Double Acting
Stroke Range: 8...260 Mm
Highlight:

Foxboro SRD991 valve positioner Profibus PA

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digital valve controller HART 7

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pneumatic control valve for oil gas

Basic Infomation
Brand Name: Foxboro
Model Number: SRD991
Payment & Shipping Terms
Packaging Details: Cardboard box/Wooden crate
Delivery Time: 6-8 weeks
Payment Terms: T/T
Supply Ability: 2000 sets per year
Product Description
Product Overview

The Foxboro SRD991 intelligent positioner offers advanced control for pneumatic actuators with microprocessor-based operation and HART communication. It provides accurate positioning, self-diagnostics, and easy local operation through its graphical display and three push buttons. The positioner is well-suited for demanding process environments where reliability, diagnostics, and straightforward maintenance are important.

Technical Specifications
Parameter Specification
Input Signal 4–20 mA DC
Communication HART
Supply Air Pressure 1.4 – 6 bar (up to 7 bar with spool valve)
Stroke Range 8 – 260 mm with standard lever
Rotary Range Up to 95°
Linearity < 0.4% of travel span
Hysteresis < 0.3% of travel span
Sensitivity < 0.1% of travel span
Operating Temperature –40 °C to +80 °C
Enclosure IP65 / NEMA 4X
Action Single or double acting
Application Industry
  • Petrochemical and chemical processing
  • Power plants
  • Oil & gas facilities
  • Industrial automation
  • Valve control in harsh environments
Common Problems & Solutions
  • Problem: Complex configuration → Solution: Local keys and graphical LCD for easy setup
  • Problem: Air supply issues → Solution: Low air consumption and recommended filter use
  • Problem: Valve diagnostics needs → Solution: Built-in self-diagnostics and status messages
Replacement Models
  • Previous generation Foxboro positioners
  • SRD960 for simpler applications
Why Buy From Us
  • Authentic Foxboro SRD991 positioner
  • Good value with technical support
  • Assistance with installation and calibration
  • Spare parts and service support
Stock & Delivery Time
  • Standard models: 6–12 weeks
  • Configured or certified versions: 8–16 weeks
RFQ Form

Please provide:

  • Valve actuator details (type and travel)
  • Communication requirements
  • Supply air pressure
  • Hazardous area classification
  • Quantity & delivery timeline
Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

D
Daulet Nurgazin
Kazakhstan Mar 19.2026
I purchased the Flowserve 3821 and am very satisfied with the overall transaction. The item arrived in good condition, matched the specifications accurately, and performed as expected. The seller demonstrated strong professionalism, provided a reasonable price, and ensured the delivery schedule was met. A dependable supplier that I would confidently work with again.
L
leyla kh
United Arab Emirates Sep 12.2025
We purchased 20 units of valve positioners for a refinery project in UAE. Delivery was fast and technical support was very professional.
Z
zahir mustafa
United States Feb 26.2025
Happy to work with them, fast response, hope to do more business with them soon
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Get in touch with us
Contact Person : Mr. Edward Zhao
Tel : +8615000725058
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