RCM Flow Meter Specifications
The RCM Flo-Gage is a differential pressure direct-reading flow meter made in the USA. It measures flow based on a pressure differential created across a built-in calibrated nozzle — self-contained, requiring no external power, separate orifices, or blocking valves.
Overview
Housing: Polycarbonate UV stabilized | Body: Bronze, Monel, or 316SS (Option -ES: also Teflon) | Bellows: Bronze, Monel, 316SS or Inconel | Movement: Bronze or SS | Seals: Buna-N, Viton, Ethylene Propylene or Teflon™ | Crystal: Polycarbonate
Standard vs. Optional Construction
| Specification | Standard | Optional |
|---|---|---|
| Series 7000 | FNPT (threaded) Standard | Series 8000 — Wafer unit mounts between 150 or 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) |
Selecting Your Flo-Gage Model
Body Size
Pipe size at the meter inlet. Select from standard flow rates and body sizes.
Series (Mounting Method)
7 = Threaded units with FNPT connections (Series 7000). 8 = Wafer units mount between any standard 150 or 300 class flanges (Series 8000).
Material
1 = Bronze | 2 = Monel | 3 = Stainless Steel (316)
Flow Direction
Select L, R, VUL, VUR, VDL, or VDR (see flow direction diagram).
Flow Rate (full scale)
Select from Standard Flow Rates and Body Sizes table.
Options (if required)
Select from the table of available options.
Switches (if required)
1S2 = One single pole double throw switch. 2S2 = Two single pole double throw switches.
Flow Direction Choices
Output Options
4–20 mA Output
For interfacing with remote displays and controllers. Available as 4-wire (linear) or 2-wire transmitter.
Limit Switches
High and low limit signals available. Single or dual SPDT reed switches. CSA/ATEX approved intrinsically safe option.
0–1000 Hz Frequency
Frequency output to drive frequency-based controllers and counters.
Flo-Gage™