RCM Flo-Gage™ Direct Reading Flowmeters
Rugged. Reliable. Proven Since 1966.
Simple, Dependable Flow Measurement for Liquids and Gases
RCM Industries’ Flo-Gage™ Direct Reading Flowmeters are engineered for industrial applications where durability, reliability, and ease of use matter most. Originally developed to address widespread failures in complex flow instrumentation, the Flo-Gage delivers accurate, real-time flow indication in a compact, self-contained, mechanical design—no power required.
- Made in U.S.A.
- Standard Time-To-Ship is 2-3 Weeks
- Request Our QuickShip** Option: 3-4 Business Days ARO
How It Works
The Flo-Gage measures flow using a calibrated internal nozzle that creates a differential pressure proportional to flow rate. This pressure is mechanically translated to a large, easy-to-read dial calibrated in standard engineering units such as GPM, SCFM, l/m, and more.
✔ No external power
✔ No separate orifice plates
✔ No equalizing, purging, or blocking valves
Key Benefits
- Direct, at-a-glance indication with a large 3.5″ (90 mm), 270° analog dial
- Rugged in-line metal construction resists vibration, piping stress, and accidental damage
- Low maintenance mechanical design with proven long service life
- ±3% full-scale accuracy with excellent repeatability
- Works with opaque fluids—no need for optical clarity
- Field-configurable orientation for flexible installation
Applications
Flo-Gage flowmeters are ideal for monitoring and control in applications such as:
- Cooling water systems
- Lubrication oil to turbines, pumps, and compressors
- Cutting oil flow in machining centers
- Process water and blending operations
- Compressed air monitoring for energy conservation
- Reverse osmosis and utility systems
Optional low-flow switches, alarm contacts, or 4–20 mA outputs can be added for equipment protection and process automation.
Media & Service Compatibility
- Liquids: Water, oils, solvents, fuels, and compatible chemical solutions
- Gases: Compressed air, nitrogen, oxygen, CO₂, natural gas, and more
- Steam: Saturated steam up to 120 psig (optional)
Available in bronze, Monel®, or 316 stainless steel, with multiple seal options to match process conditions.
Options & ConfigurationsThreaded or wafer (flanged) mounting
- High-pressure service up to 400 psig
- Remote readouts and transmitters
- Low- and high-flow switches
- Custom scales, dials, and flow ranges
- Expanded temperature ranges and hazardous-area approvals
The RCM Commitment
- 30-day satisfaction guarantee
- One-year warranty against defects
- Designed, built, and supported in the USA
- Outstanding technical support and fast delivery
RCM Flo-Gage™
The dependable choice for industrial flow monitoring—simple by design, proven by decades of use.
- Flow Meters for Liquids
- Flow Meters for Compressed Gases
- Flow Meters for Saturated Steam
- Flow Switches
- Flow Transmitters
- Digital Display Flow Meters
- Compressed Air Survey Kits
RCM Flow Meters ship within 2 weeks as a standard. We also offer a QuickShip** option resulting in shipments within 3 days from date of order.
** Carries a nominal charge. (a single charge covers groups of up to 5 meters)