RCM Flow Meters
Gas Flow Meters — Flo-Gage™
Compressed Air, Nitrogen, Oxygen, CO₂, Natural Gas · 40 SCFH – 20,000 SCFM
Gas Flow Meters — Flo-Gage™
The RCM gas flow meters are well suited to monitoring compressed air flow rates. These meters plumb directly into the pipelines and require no external power connections. Use these meters to determine the air consumption of tools for improved accounting and increased efficiency.
Common gases monitored include nitrogen, oxygen, argon, carbon dioxide, natural and LP gases. Specify Option I for gas service and include gas type, inlet temperature, and pressure when ordering.
Flo-Gage™ — Weatherproof, Face-Piped, Gas Service
Gases Measured
Specifications
| Specification | Standard | Optional |
|---|---|---|
| Series | Series 7000 (FNPT threaded) | Series 8000 (Wafer, 150/300 class flanges) |
| Housing | UV Stabilized Polycarbonate | Aluminum |
| Body | Bronze | Monel / 316SS |
| Bellows | Bronze | Monel / 316SS / Inconel |
| Seals | Buna N | Viton / EPR / Teflon |
| Crystal | Polycarbonate | Glass |
| Gear Movement | Bronze | 316SS |
| Accuracy | ±3% F.S. | ±3% F.S. |
| Repeatability | ±1% F.S. | ±1% F.S. |
| Maximum Pressure | 180 psig (12.6 kg/cm²) | 400 psig (28.1 kg/cm²) |
| Minimum Pressure | 10 psig (0.67 kg/cm²) | 10 psig (0.67 kg/cm²) |
| Maximum Temperature | 212°F (100°C) | 350°F (177°C) |
| Minimum Temperature | -30°F (-34°C) | -80°F (-62°C) |
Standard Gas Flow Ranges (Compressed Air at 100 psig)
| Meter Size | Flow Range (US) | Flow Range (SI) |
|---|---|---|
| 1/2" | 40 – 250 SCFH | 1 – 7 Nm³/h |
| 3/4" | 100 – 600 SCFH | 3 – 17 Nm³/h |
| 1" | 15 – 100 SCFM | 0.4 – 2.8 Nm³/m |
| 1-1/2" | 30 – 200 SCFM | 0.8 – 5.7 Nm³/m |
| 2" | 60 – 400 SCFM | 1.7 – 11.3 Nm³/m |
| 3" | 200 – 1,200 SCFM | 5.7 – 34 Nm³/m |
| 4" | 400 – 2,500 SCFM | 11.3 – 71 Nm³/m |
| 6" | 1,000 – 6,000 SCFM | 28 – 170 Nm³/m |
| 8" | 3,000 – 20,000 SCFM | 85 – 600 Nm³/m |
Ranges shown for compressed air at 100 psig. Custom calibrations available — specify gas type, inlet temperature, and pressure.
Option: Ammonia Gas Service
Ammonia gas is used in distillation plants and as a cooling agent. Ammonia gas flow meters offer all stainless steel construction to withstand the harsh environment. EPR seals and a gasketed case are standard features for additional protection.
Typical Applications
Manufacturing
Compressed air consumption monitoring per machine or department
Automotive
Air tool supply lines and paint booth air flow verification
Food & Beverage
Nitrogen blanketing and CO₂ carbonation flow control
Semiconductor
Process gas (N₂, Ar, O₂) distribution monitoring
Welding & Fabrication
Shielding gas (argon, CO₂, helium) flow measurement
Laboratories
Instrument air and specialty gas supply verification
Utilities
Natural gas and LP gas consumption sub-metering
HVAC
Pneumatic control air supply monitoring
Also from RCM Industries
Flo-Gard™ Flow Switches
Need a switch-only solution with no flow dial? The Flo-Gard™ is a dedicated inline flow switch using reed switch contacts — no analog readout, no external power. GP general purpose and XP hazardous location (CSA/ATEX, NEMA 4X/IP66) versions available.
Standard Lead Time
2–3 Weeks
QuickShip Option
3–4 Business Days ARO
Nominal charge — covers groups of up to 5 meters
Quick RFQ
Request Pricing