Masoneilan SVI II ESD Digital Valve Positioner with Partial Stroke Test
Product Overview
The Masoneilan SVI II ESD (Emergency Shutdown) is an intelligent digital valve positioner designed specifically for emergency shutdown (ESD) and safety valves in process plants. It combines the proven SVI II digital positioner technology with an integrated partial stroke test (PST) capability, allowing the safety valve to be tested without fully closing it.
The positioner performs automatic partial stroke testing of the shutdown valve while keeping the process online, detecting valve faults before they become failures. It is certified for use in safety instrumented systems, with SIL 3 capability in redundant configurations per IEC 61508, and communicates via HART protocol.
Key Features
- Intelligent digital valve positioner for ESD and safety valves
- Integrated partial stroke testing (PST) with automated test sequences
- HART communication with 4-20 mA input
- SIL 3 capable in redundant configurations per IEC 61508
- Position feedback and travel deviation monitoring
- Internal diagnostics for valve and actuator health
- High accuracy positioning with low air consumption
Technical Specifications
| Model | Masoneilan SVI II ESD |
|---|---|
| Function | digital valve positioner with partial stroke test for ESD valves |
| Input | 4-20 mA with HART protocol |
| Safety | SIL 3 capability per IEC 61508 (PST certified) |
| Accuracy | high accuracy digital positioning (0.5% class) |
| Diagnostics | integrated valve health monitoring and PST reporting |
| Manufacturer | Masoneilan (Baker Hughes) |
Applications
The SVI II ESD is used on emergency shutdown valves, blowdown valves, vent valves and other safety critical valves in oil and gas, refining, petrochemical and power plants, enabling reliable partial stroke testing without process interruption.
Ordering and Selection
When selecting the Masoneilan SVI II ESD positioner, confirm the valve travel, actuator type, input signal and enclosure classification, because each Masoneilan SVI II ESD is configured for a specific emergency shutdown valve. The Masoneilan SVI II ESD positioner includes the partial stroke test function, and the selected Masoneilan SVI II ESD configuration determines how the test is performed and reported. Our team can help you confirm that the Masoneilan SVI II ESD you select matches your valve, actuator and safety instrumented system requirements. Every Masoneilan SVI II ESD supplied by Seven Star LLC is genuine Baker Hughes equipment with the correct certification documentation.
Maintenance and Support
The Masoneilan SVI II ESD positioner provides diagnostics that help maintenance teams plan valve service, and the partial stroke test results should be reviewed regularly. Genuine spare parts and accessories for the Masoneilan SVI II ESD are available through Seven Star LLC, including filters, covers and mounting kits. Contact our team for assistance with the Masoneilan SVI II ESD, and we will confirm availability and pricing.ety valve project.
Industry Applications and Custom Support
The Masoneilan SVI II ESD positioner is trusted by operations and maintenance teams across oil and gas plants in Oman, the GCC and the wider Middle East region. Our customers select the SVI II ESD positioner for reliability, genuine quality and dependable supply. Seven Star LLC provides custom support including technical selection, quotation and after-sales assistance, and we regularly supply this positioner as part of preventive maintenance programs and shutdown packages. Whether you need a single unit or a complete set for a project, our team supports procurement and inspection.
The SVI II ESD positioner combines the digital positioner function with the emergency shutdown logic, and the partial stroke test verifies the valve movement without interrupting the process.
The positioner feedback and the HART communication support the remote monitoring of the valve position and the partial stroke test result.
Why Seven Star LLC?
Seven Star LLC supplies genuine Masoneilan positioners and control valve accessories to customers in Oman and the GCC. We verify model codes and safety certifications, supporting your safety instrumented systems with genuine components.
Seven Star LLC maintains a regional inventory in Muscat and coordinates directly with manufacturers across Europe and Asia. Our engineers help you verify the exact model and revision before ordering, avoiding costly mismatches.
Call To Action
For the SVI II ESD positioner or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your valve size, actuation and process data, and our specialists will respond with a detailed commercial proposal and the official SVI documentation.
Masoneilan, a Baker Hughes brand, is a global leader in the design and manufacture of control valves, pressure regulators, and valve automation systems. With over a century of engineering excellence, Masoneilan products are trusted for precise flow control, durability, and performance across critical industrial processes.
Its extensive product portfolio includes spring-loaded regulators, globe control valves, positioners, and digital valve controllers designed to optimize efficiency and ensure safe, stable operation in oil & gas, chemical, and power generation applications.
Seven Star LLC supplies authentic Masoneilan valves and regulators across the Middle East, providing clients with high-quality process control solutions backed by Baker Hughes’ global expertise and local support.
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