Description
Petro Fiorentini RPD Flow Meters are robust, high-precision volumetric meters certified for natural gas and LPG custody transfer. Their rotary piston design ensures low-pressure loss, high accuracy, and long-term stability, making them ideal for gas utilities, distribution networks, commercial billing, and midstream measurement where certified and reliable metering is mandatory.
| Parameter | Technical Specification |
| Measurement Principle | Positive displacement (rotary piston) |
| Media | Natural gas, LPG, biogas, commercial gas |
| Accuracy | ±0.2% to ±0.5% (custody transfer grade) |
| Repeatability | Better than ±0.1% |
| Pressure Rating | Up to 20 bar / PN16 / ANSI 150 (higher optional) |
| Operating Temperature | –10°C to +60°C (extended ranges available) |
| Flow Range | Wide range Qmin to Qmax, 160:1 typical turn-down |
| Materials of Construction | Aluminum / Steel body with precision internals |
| Internal Mechanism | Low-friction rotary piston assembly |
| Bearings | Precision stainless steel bearings |
| Pressure Loss | Extremely low, optimized for gas utility networks |
| Connections | Flanged EN/ASME |
| Meter Sizes | DN25 to DN200 |
| Outputs | Pulse, LF/HF pickoff, encoder, ATEX transmitters |
| Compliance & Certification | MID, OIML R137, EN 12480, DVGW, ATEX |
| Application Areas | Gas distribution, custody transfer, commercial billing, industrial gas measurement |


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