Masoneilan SVI3 Series Smart Digital Valve Positioner Stainless Steel
The Masoneilan SVI3 Series Smart Valve Positioner is a next-generation intelligent electro-pneumatic digital positioner and diagnostic controller engineered for high-precision throttling of industrial pneumatic control valves. Manufactured by Baker Hughes under the...
- SVI3-211412122 / SVI3-21123121 / SVI3-211123111 Model Configurations
- 1.4 to 7.0 bar (20 to 100 psi) Supply Air Pressure
- High-Flow Pneumatic Relay (Cv 0.60 or Higher) Pneumatic Flow Capacity
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- Fast dispatchAustralia & worldwide
- Technical supportTalk to an engineer
- 1 YearWarranty
Product Overview
The Masoneilan SVI3 Series Smart Valve Positioner is a next-generation intelligent electro-pneumatic digital positioner and diagnostic controller engineered for high-precision throttling of industrial pneumatic control valves. Manufactured by Baker Hughes under the flagship Masoneilan brand, the SVI3 platform builds upon advanced solid-state position-sensing architecture to deliver exceptional process control, responsiveness, and extended operational reliability. Available in premium stainless steel housing configurations, models such as SVI3-211412122, SVI3-21123121, and SVI3-211123111 provide superior corrosion resistance in severe coastal, marine, and offshore chemical processing environments.
Operating on a standard two-wire 4 to 20 mA loop with full bidirectional HART 7 digital communication, the SVI3 utilizes a non-contact magnetic magnetoresistive position sensor that eliminates mechanical linkages, connecting pins, and physical levers. This linkage-less design isolates the sensing electronics from stem vibration and physical mechanical wear, preventing measurement drift and mechanical deadband. Equipped with a graphical local user interface, intuitive auto-tuning routines, and built-in continuous online diagnostics, the SVI3 monitors valve health, pneumatic performance, and air consumption in real time, making it an essential instrument for critical oil and gas refineries, chemical manufacturing, power generation, and subsea tie-in processing facilities.
Technical Specifications
| Specification | Value |
| Product Name | Smart Digital Valve Positioner / Diagnostic Controller |
| Manufacturer / Brand | Masoneilan / Baker Hughes |
| Product Series | SVI3 Series (Third-Generation Smart Valve Interface) |
| Model Configurations | SVI3-211412122 / SVI3-21123121 / SVI3-211123111 |
| Device Type | Intelligent Microprocessor-Controlled Electro-Pneumatic Positioner |
| Input Control Signal | 4 to 20 mA Two-Wire Loop Powered |
| Digital Protocol | HART 7 Bidirectional Communication |
| Minimum Terminal Voltage | 9.0 VDC at 20 mA |
| Pneumatic Action | Single-Acting or Double-Acting (Model Configuration Dependent) |
| Position Feedback Sensing | Non-Contact Magnetoresistive Hall-Effect Technology |
| Valve Stroke Range | Linear: Up to 100 mm (4.0") / Rotary: 18° to 140° |
| Supply Air Pressure | 1.4 to 7.0 bar (20 to 100 psi) |
| Pneumatic Flow Capacity | High-Flow Pneumatic Relay (Cv 0.60 or Higher) |
| Steady-State Air Consumption | Less than 0.2 Nm³/h (0.12 scfm) at 2.0 bar |
| Housing Material | 316L Stainless Steel Heavy-Duty Casting |
| Ingress Protection Rating | IP66 / NEMA 4X |
| Hazardous Location Approvals | ATEX, IECEx, FM, CSA (Explosion-Proof, Flameproof, IS) |
| Functional Safety Rating | SIL 2 / SIL 3 Capable (IEC 61508) |
| Pneumatic Port Connections | 1/4 Inch NPT Female |
| Electrical Conduit Entries | 1/2 Inch NPT Female or M20 × 1.5 |
| Operating Temperature Range | -40°C to +85°C (-40°F to +185°F) |
| Local Display and Interface | High-Resolution Graphical LCD with External Push Buttons |
| Built-in Diagnostics | Real-Time Valve Signature, Travel Histogram, Air Leak Detection |
| Condition | New |
| Warranty | 1 Year |
Key Features
Non-contact magnetoresistive position sensor eliminates mechanical wear and vibration drift
Robust 316L stainless steel enclosure engineered for harsh offshore and chemical environments
Standard 4 to 20 mA loop powered operation with embedded advanced HART 7 digital protocol
High-flow single-acting and double-acting pneumatic relays deliver rapid stroke response times
High-resolution graphical LCD screen with external navigation buttons for rapid autotuning
Linkage-less magnetic mounting architecture compatible with linear and rotary actuators
Comprehensive onboard valve diagnostics tracking friction, total travel, and supply pressure
Certified explosion-proof and intrinsically safe for worldwide hazardous area deployments
Ultra-low steady-state air consumption minimizes continuous utility supply demands
Typical Applications
Precision throttling control for linear sliding-stem globe and angle control valves
Quarter-turn pneumatic actuator positioning on rotary plug, ball, and butterfly valves
Offshore drilling rigs, FPSO production vessels, and marine topside facilities
Petrochemical plants, chemical refining, and continuous reactor flow loops
Oil and gas upstream processing, midstream gas metering, and downstream refineries
Power utility steam distribution, boiler feedwater regulation, and bypass circuits
Safety instrumented systems (SIS) and critical emergency shutdown (ESD) valve assemblies
Shipping & Support
Fast dispatch: Australia & Worldwide Shipping
Technical assistance available
1-year warranty
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