The Masoneilan SVI II AP (Smart Valve Interface Advanced Performance) is a digital valve positioner and controller that uses a 4-20 mA signal with HART communication to precisely control single-acting or double-acting pneumatic actuators. It features a non-contact magnetic position sensor and is designed for both linear and rotary control valves.
This advanced performance digital positioner combines high-accuracy positioning with real-time diagnostics and a local LCD with pushbuttons for easy setup. The non-contact Hall-effect sensor eliminates mechanical wear points inside the housing, supporting long service life and simplified mounting. Automated commissioning tools such as auto-stops and auto-tune help reduce setup time. Optional high-flow capacity can reduce or eliminate the need for external boosters or quick exhausts. The modular design supports field upgrades of options and firmware, and it integrates with major control systems and asset management software via HART, eDDL, and DTM technologies.
| Specification | Details |
|---|---|
| Model | SVI II AP (Advanced Performance) |
| Input Signal | 4-20 mA with HART 5 or 7 |
| Position Sensing | Non-contact magnetic (Hall Effect) |
| Actuator Compatibility | Single-acting or double-acting |
| Valve Types | Linear and rotary |
| Accuracy | ±0.5% full span (typical) |
| Hysteresis + Deadband | ±0.3% full span |
| Repeatability | ±0.3% full span |
| Operating Temperature | -50°C to +85°C |
| Supply Pressure | Single-acting: 20–100 psi (1.4–6.9 bar); Double-acting: up to 150 psi (10.3 bar) |
| Enclosure | NEMA 4X / IP66 |
| Housing Material | Low-copper aluminum (316L stainless steel optional) |
| Diagnostics | Standard and Advanced (pressure sensors, cycle counts, signatures) |
| Safety | SIL 2 self-compliance (IEC 61508) |
| Certifications | ATEX, IECEx, FM, FMc and regional approvals |
Used in oil and gas, chemical processing, refining, power generation, and general process industries for precise control of pneumatic control valves in continuous and batch operations.
Users of older positioners often face sensor wear, complex calibration, or limited diagnostic insight. The SVI II AP addresses these with non-contact sensing, automated setup wizards, local LCD interface operable in hazardous areas, and comprehensive online/offline diagnostics.
Suitable as a direct upgrade or replacement for earlier Masoneilan SVI series positioners and other analog or digital positioners on single- or double-acting actuators.
We supply genuine Masoneilan (Baker Hughes) digital valve controllers and provide practical support for correct model selection and application matching.
Typical production and delivery time is 6-8 weeks.
Please provide actuator type (single/double acting), valve style (linear/rotary), required options (LCD, high flow, position transmitter, switches), hazardous area needs, and quantity for a customized quotation.
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