Yokogawa SDV144-SE3-S4 – Smart Valve Positioner | CENTUM / ProSafe-RS Platform
Engineering Background
The Yokogawa SDV144-SE3-S4 is a digital valve positioner engineered for precision control in process automation environments. Designed to interface directly with HART-compatible DCS and safety systems, it delivers reliable pneumatic actuation with intelligent diagnostics — a critical requirement for refineries, chemical plants, and power generation facilities operating under stringent SIL and process integrity standards.
Product Positioning
As part of Yokogawa’s SDV100 series, the SDV144-SE3-S4 targets applications demanding high-accuracy valve positioning, real-time diagnostics, and seamless integration with CENTUM VP and ProSafe-RS architectures. It is the preferred choice for procurement engineers sourcing certified, OEM-traceable positioners for critical control loops.
Complete Technical Specifications
- Part Number / SKU: SDV144-SE3-S4
- Manufacturer: Yokogawa Electric Corporation
- Series: SDV100 Smart Valve Positioner Series
- Input Signal: 4–20 mA DC (HART superimposed)
- Communication Protocol: HART (Highway Addressable Remote Transducer)
- Action Type: Single-acting (SE) pneumatic output
- Supply Pressure: 140–700 kPa (1.4–7.0 bar)
- Output Pressure: 0 to supply pressure
- Air Consumption: ≤ 0.5 Nm³/h (at 140 kPa supply)
- Ambient Temperature: −40°C to +85°C
- Enclosure Rating: IP66 / NEMA 4X
- Explosion Protection: ATEX / IECEx (intrinsically safe & flameproof options)
- Mounting: IEC 60534-6 (NAMUR) standard bracket compatible
- Feedback Sensor: Non-contact Hall-effect position sensor
- Weight: Approx. 1.0 kg
- Material (Housing): Aluminum alloy with polyurethane coating
- Suffix Breakdown: SDV144 = base model | SE3 = single-acting, 3-port | S4 = stainless steel wetted parts / special option
Proven Application Environments
- Oil & Gas upstream/downstream control valves
- Petrochemical and refinery process loops
- Power plant steam and feedwater control
- Chemical batch and continuous process control
- Pharmaceutical clean-room valve automation
- Pulp & paper and water treatment facilities
- Safety Instrumented Systems (SIS) requiring SIL-rated positioners
Engineering Advantages
- HART Diagnostics: Real-time valve signature analysis, travel deviation alerts, and predictive maintenance data accessible via any HART-compatible host or handheld communicator
- Auto-Calibration: One-button auto-setup for zero, span, and travel limits — reduces commissioning time by up to 60%
- Non-Contact Position Sensing: Hall-effect sensor eliminates mechanical wear, extending MTBF in high-cycle applications
- Tight Linearity: ±0.5% of span positioning accuracy for critical throttling control
- Robust Enclosure: IP66/NEMA 4X rated for outdoor, washdown, and corrosive atmospheres
- Wide Temperature Range: Qualified from −40°C to +85°C for arctic and high-heat installations
System Architecture & Signal Flow
The SDV144-SE3-S4 receives a 4–20 mA setpoint signal from the DCS output card (e.g., Yokogawa CENTUM VP AAI141 or equivalent). The HART protocol layer enables bidirectional digital communication over the same two-wire loop. Internally, the microprocessor compares the setpoint against the Hall-effect position feedback and drives the I/P converter to modulate pneumatic output pressure. The single-acting (SE3) pneumatic stage delivers 0–supply pressure to the actuator, with spring return on air failure. HART variables (PV, SV, TV, QV) are continuously available for DCS integration or AMS/FDT asset management platforms.
Sourcing & Quality Verification
- Origin: Genuine Yokogawa OEM — manufactured in Japan
- Traceability: Each unit ships with Yokogawa factory serial number and calibration certificate
- Condition: New-in-box (NIB) or factory-refurbished with full test report available upon request
- Certifications: CE, ATEX, IECEx, CSA (confirm applicable marks with order)
- Lead Time: In-stock units ship within 3–5 business days; special configurations subject to factory lead time
- Inspection: 100% functional test performed prior to shipment; test data available on request
Procurement Process
- Submit your RFQ via Konmask.com/contact or email support@konmask.com
- Receive formal quotation with lead time, unit price, and shipping options within 24 business hours
- Confirm PO — we accept T/T wire transfer, PayPal, and major credit cards
- Shipment via DHL / FedEx / UPS with full tracking; export documentation (CO, packing list, commercial invoice) included
- Post-delivery technical support available via email and WhatsApp: +0086 19859288691
Technical FAQ
Q: Is the SDV144-SE3-S4 compatible with non-Yokogawa DCS systems?
A: Yes. The HART protocol is an open standard; the positioner is compatible with any HART-capable DCS, PLC, or safety controller, including Emerson DeltaV, Honeywell Experion, ABB 800xA, and Siemens PCS 7.
Q: What is the difference between SE3 and DE (double-acting) variants?
A: SE3 denotes single-acting with 3-port pneumatic output — suitable for spring-return actuators. Double-acting (DE) variants supply opposing pressure to both actuator chambers and are used where spring return is not available.
Q: Can the positioner be configured without a HART communicator?
A: Yes. The SDV144 features a local push-button interface for auto-calibration and basic parameter setting without requiring a handheld communicator or laptop.
Q: What is the minimum loop resistance required for HART communication?
A: A minimum of 250 Ω must be present in the 4–20 mA loop for HART communication to function correctly.
Q: Do you provide IQ/OQ documentation for pharmaceutical applications?
A: Yes. Installation Qualification (IQ) and Operational Qualification (OQ) documentation packages are available upon request for GMP-regulated environments.
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