


Compressed Air Flow Meter Sage Metering Model 51 Thermal Mass Insertion
Sage Metering - Thermal Mass Compressed Air Flow Meter
Revolutionize Your Compressed Air, and Nitrogen Metering
Introducing the Sage 51 Natural Gas Series Meter– the ultimate flow meter for precise natural gas and air flow measurement in commercial and institutional buildings. Whether you’re managing a sprawling university campus, a busy hospital, or a complex office building, our thermal mass flow meter delivers unparalleled accuracy and efficiency.
This meter is an insertion thermal mass compressed air meter. As this meter is an insertion meter, this single meter can fit a variety of pipe sizes. Pipe sizes can range from 2" to 20" pipe sizes
Flow Meter Key Features:
Direct Mass Flow Measurement: No additional temperature or pressure transmitters required
High Accuracy: Within 1% of actual value, NIST calibrated with natural gas or air
Impressive Turndown: 100:1 ratio with resolution up to 1000:1
Low-End Sensitivity: Measures as low as 5 SFPM
Negligible Pressure Drop: Maintains energy efficiency
No Moving Parts: Ensures long-term reliability and accuracy
Perfect for HVAC Applications:
Inline or insertion-style options
Available with flow conditioner (minimizes pipe run requirements)
Easy installation and maintenance
High rangeability for both low- and high-flow scenarios
Facilitates LEED credits
Compact design (4-1/8″ dia. x 4-1/4″ deep)
CI D2 hazardous location rating
Advanced Communication:
BACnet communication standard (Modbus RTU optional)
Isolated 4-20 mA output for flow rate
Pulsed output for totalized flow
Optional dry contact relay module
Ideal for:
Mechanical contractors
Performance contractors
Campuses and universities
Energy service companies (ESCOs)
With the Emergent Metering natural gas meter, you can maximize your boiler system’s efficiency and reduce energy consumption. Experience the power of precise natural gas monitoring today!