SRD991 RCV Intelligent Valve Positioner
The top-mounted SRD991 digital positioner is integral with the Type 766 actuator, spring opposed diaphragm actuator designed specifically to fit the Research Control Valve body-bonnet assembly. The unique positioner is compatible for both the 1/4 in. and 1/2 in. actuator.
- Microprocessor-based control: Self-adaptive algorithm for precise, reliable operation.
- Broad actuator compatibility: Works with linear and rotary actuators; mounts per VDI/VDE 3845 or IEC60534-6-2.
- Advanced diagnostics: Predictive maintenance via DTM software (VALcare™/Valve Monitor); monitors friction, stiction, dead band, hysteresis, valve footprint, position/response history, and air leakage.
- Partial Stroke Test (PST): Tests ESD valve functionality without full cycling.
- Multiple communication protocols: HART, PROFIBUS-PA, FOUNDATION Fieldbus H1, FoxCom.
- Local configuration interface: Multi-lingual graphical LCD, 3 push-buttons, and optional IrCom wireless setup.
- Safety & certifications: SIL 3 approved; ATEX, IECEx, FM, CSA, NEPSI explosion-certified.
- Rugged construction: Aluminum housing; IP66/NEMA 4X (IP65 standard).
- Automatic functions: Auto-start and actuator recognition (type & stroke length) for easy commissioning.
- Specific RCV integration: Top-mounted version fits Badger Meter Type 766 actuator for Research Control Valve assemblies.
- Emergency Shutdown (ESD) systems: Supports Partial Stroke Test (PST) to verify ESD and venting valve functionality.
- Oil & Gas: Ideal for exploration, production, transportation, well testing, enhanced oil recovery, fractionation, and separation.
- Refining, Chemical & Petrochemical: Manages critical resources and improves efficiency in challenging fluid processes.
- Power generation: Provides precise control for various plant applications.
- Pharmaceutical manufacturing: Ensures accurate control and diagnostics for production processes.
- Pulp & Paper: Supports consistent process monitoring and quality control.
- Food & Beverage: Applicable across processing stages requiring precision.
- Aviation & Aerospace: Reliable for critical fluid flow test stands and harsh conditions.
- General industrial processes: Ensures quality control, process optimization, and regulatory compliance.
- Actuation type: Single or double-acting pneumatic.
- Stroke range: 8–260 mm (0.3–10.2 in) with standard lever.
- Angle of rotation: Up to 95° (optional up to 300°).
- Supply air pressure: 1.4–6 bar (20–90 psig); high-capacity version up to 7 bar (105 psig).
- Input signal & protocols: 4–20 mA; HART, PROFIBUS-PA, FOUNDATION Fieldbus H1.
- Housing material: Aluminum alloy.
- Protection class: IP66 / NEMA 4X.
- Ambient temperature range: –40 to 80°C (–40 to 176°F).
- Diagnostics: Advanced diagnostics including online friction, stepping signatures, and PST for ESD valves.
- Display: Multilingual full-text graphical LCD for local configuration.
- Wireless interface: Infrared (IrCom) for wireless setup and operation.
- Certifications: SIL-approved; explosion-protection standards including ATEX, IECEx, FM, CSA (intrinsic safety).
