The Masoneilan SVI2 + 78-40 is an integrated pneumatic control solution pairing the advanced SVI2 digital valve positioner with the rugged 78-40 high-flow filter regulator. The SVI2 delivers ±0.5% positioning accuracy, HART 7 communication, and real-time diagnostics, while the 78-40 supplies clean, stable air up to 150 psig with 1100 scfm capacity. This pre-engineered combo enables self-tuning, low-bleed operation with ValveAware predictive analytics. Certified for SIL 2 and hazardous areas, it is ideal for critical pressure, level, and flow loops in refineries, LNG terminals, and power plants.
| Parameter | Specification |
|---|---|
| Positioner | Masoneilan SVI2 |
| Regulator | 78-40 Airset |
| Input Signal | 4-20 mA HART 7 |
| Positioning Accuracy | ±0.5% of span |
| Air Supply | 20–150 psig (1.4–10.3 bar) |
| Flow Capacity | 1100 scfm (1870 m³/h) |
| Temperature Range | -40°C to +85°C |
| Enclosure | IP66/NEMA 4X |
| Explosion Protection | Ex d IIC T4 Gb, Class I Div 1 |
| Air Consumption | less than 0.3 scfm (8.5 l/min) |
Yes, SIL 2 capable with certified FMEDA.
less than 0.3 scfm in steady state.
Yes, one-button auto-calibration via SVI2.
ValveAware monitors signature, friction, and response.
Yes, 5-micron with auto-drain option.
For more information about the Masoneilan SVI2 + 78-40, pricing, or to request a demo, contact our team: