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Brand Name : Foxboro
Model Number : Srd991
Place Of Origin : China
MOQ : 1
Price : 800USD~2000USD
Payment Terms : T/T
Supply Ability : 600Sets/Month
Delivery Time : 2 Weeks
Packaging Details : Wooden Box/Carton Box
Accessories : Solenoid Valve
Power : 0.2-2.2KW
Body Design : Short Pattern
Control Range : 0-100%
Temperature Of Media : Low Temperature
Air Supply : 1.4 To 6.0 Bar
Signal Communication : HART 5 Or 7 Over 4-20mA
Operating Media : Air/Gas/Liquid
The Foxboro SRD991 Intelligent Valve Positioner is a state-of-the-art digital positioner designed for high-precision control of both linear and rotary actuators. Engineered by Schneider Electric (formerly Invensys Foxboro), this positioner supports HART® 7 and Foundation Fieldbus™ protocols, delivering advanced valve diagnostics, automatic calibration, and reliable performance in harsh environments. With its explosion-proof design and IP66 protection rating, the SRD991 is ideal for critical process control applications in industries such as oil & gas, power, chemicals, and water treatment.
Parameter | Specification |
---|---|
Input Signal | 4–20 mA with HART® communication |
Communication Protocols | HART 5/6/7, Foundation Fieldbus |
Supply Pressure | 1.4 to 6.9 bar (20 to 100 psi) |
Positioning Accuracy | ≤ ±0.2% linearity |
Repeatability | ≤ ±0.1% |
Response Time | ≤ 100 ms |
Mounting Type | Linear and rotary actuators (NAMUR interface) |
Display | LCD screen with push-button control |
Diagnostics | Valve friction, air leakage, deviation monitoring |
Material | Anodized aluminum housing |
Protection Rating | IP66 / NEMA 4X |
Operating Temperature | –40 °C to +85 °C |
Explosion-Proof Certifications | ATEX, IECEx, FM, CSA (Zone 1 / Div 1) |
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Foxboro SRD991 Intelligent Valve Positioner Digital Accuracy with HART & Fieldbus Communication Images |