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Macnaught
Macnaught M Series Positive Displacement Flow Meter
Quote on request
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Macnaught M Series: oval-gear PD; ±0.5%; 0.13 GPH–317 GPM class; Al/SS. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Accuracy
+/-0.5% of reading (pulse); +/-1.0% of reading (mechanical register models)
Approvals
Intrinsically safe / explosion-proof models available on request
Type
Macnaught M Series cast-construction oval-gear positive displacement flow meter
Repeatability
+/-0.03%
Flow Range Family
About 0.13 GPH to 317 GPM across 1/4 in to 4 in sizes
Temperature
Standard about -40 to 80 C; high-temperature options higher (to about 120 C class)
Fits oval-gear liquid metering where you need a Macnaught M Series—cast-construction PD meter with ±0.5% of reading pulse accuracy (±1.0% mechanical register), ±0.03% repeatability, family flow about 0.13 GPH to 317 GPM across ¼ in to 4 in sizes, and aluminium or stainless bodies.
Key advantages
- Accuracy — ±0.5% of reading (pulse)
- Repeatability — ±0.03%
- Flow family — About 0.13 GPH to 317 GPM
- Materials — Cast Al or SS; PPS/SS rotors
- Outputs — Pulse or mechanical register options
Typical applications
- Fuel / oil metering.
- Chemical batching.
- Industrial liquid PD.
Selection guide
- Size / materials
- Pulse vs register
- Seal Viton/PTFE
Common mistakes
- Air in meter.
- Wrong viscosity assumption.
- Exceeding temperature.
When to RFQ / what to tell us
- Size/materials/output.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 45524 |
| Brand | Macnaught |
| Model | M Series Positive Displacement Flow Meter |
| Product type | Positive Displacement Flow Meter |
| Type | Macnaught M Series cast-construction oval-gear positive displacement flow meter |
| Accuracy | +/-0.5% of reading (pulse); +/-1.0% of reading (mechanical register models) |
| Repeatability | +/-0.03% |
| Flow range family | About 0.13 GPH to 317 GPM across 1/4 in to 4 in sizes |
| Temperature | Standard about -40 to 80 C; high-temperature options higher (to about 120 C class) |
| Materials | Cast aluminium or stainless steel bodies; PPS or stainless rotors; Viton/PTFE seal options |
| Outputs | Standard pulse, standard mechanical register, heavy-duty mechanical register |
| Connections | BSP, NPT; flange kits for larger sizes |
Documents
FAQ
Q: Accuracy? A: ±0.5% of reading (pulse).
Q: Sizes? A: About ¼ in to 4 in family.
Q: What should I send for a quote? A: Size/materials/output, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | +/-0.5% of reading (pulse); +/-1.0% of reading (mechanical register models) |
| Approvals | Intrinsically safe / explosion-proof models available on request |
| Type | Macnaught M Series cast-construction oval-gear positive displacement flow meter |
| Repeatability | +/-0.03% |
| Flow Range Family | About 0.13 GPH to 317 GPM across 1/4 in to 4 in sizes |
| Temperature | Standard about -40 to 80 C; high-temperature options higher (to about 120 C class) |
| Materials | Cast aluminium or stainless steel bodies; PPS or stainless rotors; Viton/PTFE seal options |
| Outputs | Standard pulse, standard mechanical register, heavy-duty mechanical register |
| Connections | BSP, NPT; flange kits for larger sizes |
| Installation | No flow conditioning required; compact lay length; suitable for viscous fluids |
| Document | Macnaught MX-Series & M-Series Positive Displacement Flow Meters cut sheet (OEM) |