Application
HVAC & Cooling Towers
Proper flow balance is critical to HVAC system efficiency. Flo-Gage meters provide reliable, direct-reading flow indication for chilled water, condenser water, and glycol systems.
Flow Balance & Energy Efficiency
Unbalanced chilled water systems are one of the most common causes of comfort complaints and energy waste in commercial buildings. Flo-Gage meters installed at air handling units, fan coil units, and cooling tower cells give commissioning engineers and facility managers the data they need to balance the system properly.
Our meters are factory-calibrated for water and are available with specific gravity corrections for ethylene glycol and propylene glycol solutions — critical for accurate readings in freeze-protected systems.
Key Features
- Calibrated for water, ethylene glycol, and propylene glycol solutions
- High Viscosity option (V) for glycol concentrations above 50%
- Sizes from 1/4" to 3" for any chilled water or condenser line
- 4-20mA transmitter for BMS and DDC integration
- NEMA-4X gasketed enclosure for mechanical room environments
- Direct-reading GPM dial — no power required for local indication
Typical Applications
Chilled Water AHU Coils
Verify design flow to each air handling unit during commissioning.
Cooling Tower Cells
Balance condenser water flow across multiple tower cells.
Glycol Heat Exchangers
Monitor glycol flow in process cooling and freeze protection loops.
BTU Sub-Metering
Pair with temperature sensors for tenant energy billing.
How Customers Use Flo-Gage
Real-world application examples from industries that rely on RCM Industries flow meters every day.
Challenge
A 20-story office building had chronic hot/cold complaints on upper floors. The chilled water system had never been properly balanced since commissioning.
Solution
Flo-Gage liquid meters installed on each AHU branch during a recommissioning project. Direct-reading GPM dials allowed balancing without a laptop or data logger.
Result
System balanced in two days. Comfort complaints dropped by 80% in the first month. Chiller runtime reduced by 15%.
Challenge
A colocation data center needed to sub-meter cooling water to individual server rows for tenant billing and capacity planning.
Solution
Flo-Gage digital meters (FG-D) with 4–20 mA output installed on each row. Signals fed to BMS for automated logging and billing.
Result
Tenant billing now based on actual cooling consumption. Identified two rows using 3× the expected cooling — traced to improperly configured CRAC units.
Related Applications
Frequently Asked Questions
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