Masoneilan SVI3 Digital Valve Positioner (SVI3-21121212 Configuration)
The Baker Hughes Masoneilan SVI3 is a high-performance digital valve positioner engineered for pneumatic control valves. The specific model code SVI3-21121212 represents a configured version of this third-generation platform, offering reliable positioning through field-proven non-contact sensing technology and advanced control features.
Product Overview
Built for accuracy and ease of use, the SVI3 features SMART CAL one-button setup, HART 7 communication over 4-20 mA, and comprehensive online diagnostics that monitor valve health while the process is running. It delivers improved pneumatic performance with higher air delivery and lower steady-state consumption compared with previous generations. The design supports both linear and rotary actuators in single-acting fail-safe mode and operates across a wide temperature range.
Technical Specifications
| Specification | Details |
|---|---|
| Series | Masoneilan SVI3 |
| Model Code Example | SVI3-21121212 |
| Input Signal | 4-20 mA with HART 7 |
| Temperature Range | -55°C to +85°C |
| Air Supply | 20–120 psi |
| Air Capacity | 410 SLPM at 30 psi |
| Action | Single-acting, fail-safe |
| Compatible Valves | Linear and rotary pneumatic control valves |
| Materials | Copper-free aluminum housing (316SS optional) |
| Key Features | Online valve diagnostics, advanced diagnostics, modular design |
| Safety | SIL 3 capable with multiple hazardous area approvals |
Application Industry
Applied in power plants, refineries, petrochemical facilities, oil and gas production and processing, and other process industries requiring precise and reliable control valve positioning.
Common Problems
Common issues with traditional positioners include time-consuming setup, limited diagnostic insight, and higher air usage. The SVI3 mitigates these with automated calibration, continuous online diagnostics (including data storage for trending), and optimized pneumatics.
Replacement Models
An effective modern replacement for earlier SVI II or similar digital positioners, offering enhanced diagnostics and efficiency on existing pneumatic actuators.
Why Buy From Us
We focus on authentic Masoneilan instrumentation and provide configuration guidance to match the positioner correctly to your valve and process requirements.
Stock & Delivery Time
Standard lead time is 6-8 weeks.
RFQ Form
Share actuator type, process conditions, preferred housing material, diagnostic needs, and order quantity to receive a detailed quote.
Overall Rating
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