What Is the Masoneilan SVI2 Valve Positioner?
The Masoneilan SVI2 is a smart, pneumatic control valve positioner and regulator designed for high-precision valve control in process automation systems.
It converts control signals into exact valve stem movement, ensuring ±0.5% accuracy, improved response time, and consistent operation in critical industries such as oil & gas, chemical processing, and power generation.
Key Features and Advantages
- High Positioning Accuracy: ±0.5% of full stroke for superior process control.
- Wide Operating Temperature Range: –40 °C to +85 °C for harsh environments.
- Smart Communication Protocols: Supports HART, Foundation Fieldbus, and Profibus-PA for seamless DCS integration.
- Easy Configuration: Intuitive LCD interface for local setup and calibration.
- Diagnostics & Predictive Maintenance: Built-in sensors provide valve performance feedback to reduce unplanned downtime.
- Rugged Construction: IP66/NEMA 4X enclosure ensures durability in demanding industrial applications.
How the Masoneilan SVI2 Improves Process Efficiency
The SVI2 continuously monitors valve position, actuator pressure, and signal input to automatically adjust air supply.
This closed-loop control minimizes hysteresis and drift, resulting in:
- More stable process output,
- Lower air consumption, and
- Extended valve service life.
Its advanced diagnostic algorithms detect early signs of wear or obstruction, allowing operators to perform predictive maintenance instead of reactive repairs.
Technical Specifications (Overview)
| Parameter |
Specification |
| Positioning Accuracy |
±0.5% of full stroke |
| Repeatability |
±0.3% |
| Supply Pressure |
1.4 – 6 bar (20 – 90 psi) |
| Temperature Range |
–40 °C to +85 °C (–40 °F to +185 °F) |
| Communication |
HART, FF, Profibus-PA |
| Enclosure Rating |
IP66 / NEMA 4X |
| Air Connections |
¼" NPT female |
| Material |
Aluminum or 316 SS (optional) |
Typical Applications
- Oil Refineries & Petrochemical Plants
- Gas Transmission Systems
- Power Generation Facilities
- Water Treatment Plants
- Paper and Pulp Industries
- Chemical Processing Units
Why Choose Masoneilan SVI2 from Dr. Industry Group
As a professional automation solutions supplier with over 10 years of experience in industrial control systems,
Dr. Industry Group Co., Ltd. offers:
- Genuine Masoneilan SVI2 units in stock,
- Fast delivery and global shipping,
- Full technical support and parameter configuration services,
- Integration with Fisher, Samson, and Foxboro control systems.
We ensure each product is tested and calibrated before shipment for optimal performance.
FAQ — Masoneilan SVI2 Positioner
Q1. What is the difference between SVI and SVI2 positioners?
A1. The SVI2 offers improved communication speed, better diagnostics, and enhanced temperature tolerance compared to the previous SVI model.
Q2. Can the SVI2 work with non-Masoneilan actuators?
A2. Yes, it can be integrated with most pneumatic actuators following NAMUR standards, including Fisher and Samson types.
Q3. Does Dr. Industry Group offer installation and commissioning support?
A3. Yes, our engineering team can assist with on-site setup and HART communication configuration for international clients.
Q4. Is the Masoneilan SVI2 available for immediate shipment?
A4. Yes, we maintain regular stock for Masoneilan SVI2 (78-40 series) with fast lead times and worldwide delivery.
Contact Us
Dr. Industry Group Co., Ltd.
Shanghai, China
www.shgongboshi.com
edwardzhao@gbsxj.com
+86-15000725058
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