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| Categories | Pneumatic Control Valves |
|---|---|
| Brand Name: | Foxboro |
| Model Number: | SRD991 |
| MOQ: | 1 |
| Price: | US $1600.00 - 2198.00/ 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 |
| IP Degree of Protection: | IP66 |
| Maximum pressure: | 6 bar ,90 psi |
| Company Info. |
| Xiangjing (Shanghai) M&E Technology Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
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.
| 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:
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:
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