RCM Flow Meters
Flo-Gage™ Construction & Options
Materials of Construction · Series 7000 & 8000 · Full Options Index
Key Features
- →Sturdy in-line metal construction to withstand piping stresses without breaking
- →Black on white dial — won't crack, glaze or become hard to read with age
- →Expanded 3.5″ (90mm) 270° analog dial for reading at a glance
- →Suitable for use with both opaque and clear fluids
- →6:1 turndown ratio with ±3% F.S. accuracy, ±1% repeatability
- →Dial and case factory configured for quick installation — easily field re-configured if needed
- →Self-contained — no external power, separate orifices, or blocking valves required
- →Available with limit switches, transmitters, digital displays, and remote mountings
- →Works with liquids, gases, and saturated steam in a single product family
Flo-Gage™ — 316SS Wafer Body, Series 7000
Series 7000 & 8000 — Body Styles
| Series | Connection | Sizes | Flange Class | Notes |
|---|---|---|---|---|
| Series 7000 | Threaded FNPT | 1/4″ – 3″ | — | NPT or BSP connections |
| Series 8000 | Wafer (flanged) | 1/2″ – 8″ | 150 / 300 class | Mounts between standard flanges |
Materials of Construction & Specifications
| Component / Parameter | Standard | Optional |
|---|---|---|
| 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. |
| Pressure Max (std) | 180 psig (12.6 kg/cm²) | 400 psig (28.1 kg/cm²) |
| Pressure Min | 10 psig (0.67 kg/cm²) | 10 psig (0.67 kg/cm²) |
| Temperature Max (std) | 212°F (100°C) | 350°F (177°C) |
| Temperature Min (std) | -30°F (-34°C) | -80°F (-62°C) |
Options Index
| Option Code | Description |
|---|---|
| Option I | Gas service calibration — specify gas type, inlet temperature, and pressure when ordering |
| Option N | Ammonia service — stainless steel construction, EPR seals, gasketed case |
| Option R2 | Remote readout for bronze body — separates dial from meter body for high-temperature steam service |
| Option R3 | Remote readout for 316SS body — separates dial from meter body for high-temperature steam service |
| Option W2 | 4–20 mA two-wire transmitter — loop-powered, integral to meter housing |
| Option W3 | 4–20 mA transmitter with local digital display |
| Option RW3 | Self-contained 2-wire loop-powered transmitter and digital display in one unit |
| Option DR-1 | Remote digital display — connects to any W, W2, W3, or RW3 transmitter output |
| Option 1S2 | One SPDT Flo-Gard™ reed switch — independently adjustable setpoint |
| Option 2S2 | Two SPDT Flo-Gard™ reed switches — two independently adjustable setpoints |
| Option IS | Intrinsically safe reed switch — CSA/NRTLc AEx ia IIC, Class I Div I Groups A–D; ATEX Zone 0 |
| Option LED | LED flow status indicator — at-a-glance viewing and easy field calibration (no charge) |
Services Not Recommended
- ✕Resins, paints or monomers which can form solid deposits in the piping system
- ✕"Super-solvents" which attack most available elastomers
- ✕Sulfuric acid in any concentration
- ✕Foams which tend to have inconsistent densities
- ✕Toxic substances requiring hermetically sealed enclosures
- ✕Fluids with viscosity above 500 centipoise
- ✕Pumping systems using piston pumps which produce non-steady flow conditions
- ✕Gravity-fed systems having less head than the pressure loss across the meter at normal operating conditions
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