The Rosemount 4051SFA Annubar Flow Meter is an advanced averaging pitot tube solution designed to deliver superior measurement accuracy across a broad flow range. Featuring a unique T-shape Annubar design, this sensor is engineered to provide very low permanent pressure loss, directly contributing to significant energy savings and reduced operational costs.
Built to withstand the most demanding industrial processes, the 4051SFA features an all-welded hermetic stainless steel SuperModule platform that effectively resists overpressure and line pressure effects. This robust construction is backed by an industry-leading 20-year limited warranty and 20-year stability, ensuring long-term reliability in even the most harsh environments.
Modernize your maintenance routines with integrated Bluetooth® connectivity, which allows you to simplify configuration and maintenance while significantly increasing personnel safety. The device is further enhanced by built-in advanced diagnostics, including Process Intelligence and loop integrity checks, providing complete visibility from the process to the control room.
Single Pipe Penetration: The T-shaped sensor includes an integrated thermowell, allowing for flow and temperature measurements via a single penetration to minimize pipe profile.
Rapid Response: Experience faster response times of less than 50ms for real-time process control.
Incredible Rangedown: An 800:1 rangedown (28:1 flow turndown) reduces the need to stock multiple unique models, simplifying inventory.
Safety Certified: This meter is SIL 2/3 certified to IEC 61508, making it an ideal choice for high-integrity safety installations.
| Feature | Specification Details |
| Accuracy | 0.025% span accuracy |
| Line Size | 2 to 96 in. (50 to 2440 mm) |
| Measurement Range | Up to 10,000 psig gage / 10,000 psia absolute |
| Wetted Material | 316L Stainless Steel, Alloy C-276 |
| Stability | 20-year stability |
| Protocol | 4-20 mA HART® protocol |
The Rosemount 4051SFA comes fully configured, leak-tested, and ready to install right out of the box, ensuring a fast installation process. The sensor is designed with a stagnation zone strategically positioned to reduce noise and prevent particulates from clogging the impulse lines, ensuring measurement accuracy is maintained over time. Operators can easily monitor performance through a large, graphical backlit display available in seven languages.
Q: What is the primary advantage of the Rosemount 4051SFA T-shape sensor?
A: The T-shaped design features an integrated thermowell that allows for both flow and temperature measurements via a single pipe penetration. It is also engineered to provide very low permanent pressure loss, which increases energy savings.
Q: How long is the warranty and stability for the Rosemount 4051SFA?
A: This flow meter comes with an industry-leading 20-year limited warranty and 20-year stability.
Q: Does the 4051SFA support wireless maintenance?
A: Yes, it features Bluetooth® connectivity that simplifies configuration and maintenance while increasing personnel safety by allowing remote interaction.
Q: Is this flow meter suitable for safety-instrumented systems (SIS)?
A: Yes, the Rosemount 4051SFA is SIL 2/3 certified to IEC 61508 by an independent third party, making it suitable for high-integrity safety installations.
