R200 Volumetric 20mm Water Meter for Residential Use
- R200 High Accuracy: Captures every single drop with an ultra-low 6.67 L/h starting flow rate.
- Volumetric Piston Design: Ensures highly precise physical water measurement specifically for vertical installations.
- IP68 Liquid-Filled Register: 100% waterproof and fog-free for crystal-clear, permanent underwater readability.
- Anti-Magnetic Protection: Built-in magnetic shielding prevents external tampering to guarantee secure billing data.
- ISO 4064 Certified: Durable DN20 (BSP G1B) threaded construction safely handles MAP16 maximum working pressure.
Precision Volumetric Water Measurement
Designed to meet stringent ISO 4064 standards, this DN20 volumetric water meter utilizes advanced piston displacement technology to deliver exceptional measurement accuracy. Unlike velocity-based meters, its volumetric measuring principle ensures that a precise volume of water is physically trapped and measured, significantly reducing non-revenue water loss. With a design optimized specifically for vertical installation, it provides utilities, sub-metering contractors, and property managers with a highly reliable solution for precise consumption monitoring and billing.
Engineered for Extreme Environments
Built to withstand challenging physical conditions, this water meter boasts a premium IP68 protection class, making it completely dust-tight and capable of continuous underwater operation. The core mechanism features a liquid-filled, hermetically sealed register that entirely prevents dial fogging and condensation, keeping the numbers crystal clear for the duration of its lifespan. Furthermore, the built-in anti-magnetic protection safeguards the device against external tampering, ensuring the absolute integrity of your measurement data under maximum working pressures up to MAP16.
Key Features & Advantages:
- High Accuracy Class R200: Delivers an exceptional measurement range with an ultra-sensitive starting flow of just 6.67 L/h, guaranteeing that even the smallest drips are recorded accurately up to a permanent flow rate of 4.0 m³/h (Q3).
- Liquid-Filled Register: The hermetically sealed IP68 design ensures the display remains permanently legible and unaffected by humidity, effortlessly handling water temperatures of T30/T50.
- Anti-Magnetic & Tamper-Proof: Integrated magnetic shielding secures the meter against fraudulent external interference, guaranteeing dependable and secure data for utility billing.
- Standardized DN20 Fit: Features industry-standard BSP G1B threading and a compact 154mm length, allowing for seamless and secure integration into existing threaded pipeline infrastructures.
Functional Parameters
| Meter Type | Volumetric |
| Measuring Principle | Piston Displacement |
| Dial Type | Liquid Filled Type Register |
| Installation Orientation | Vertical |
| Protection Class | IP68 |
| Temperature Class | T30/T50 |
| Pressure Class | MAP16 |
| Accuracy Class | R200 |
| Standard Compliance | ISO 4064 |
| Anti-Magnetic Protection | Yes |
| Sealing Type | Hermetically Sealed Register |
Dimensional Parameters
| Nominal Diameter (DN) | DN20 (20mm) |
| Length (L) | 154mm |
| Width (W) | 106 mm |
| Thread Type | BSP |
| Thread Size | G1B |
| Connection Type | Threaded |
Flow Parameters
| Q1 (Minimum Flow Rate) | 20 L/h |
| Q2 (Transitional Flow Rate) | 32 L/h |
| Q3 (Permanent Flow Rate) | 4.0 m³/h |
| Q4 (Overload Flow Rate) | 5.0 m³/h |
| R Value (Q3/Q1) | 200 |
| Starting Flow | 6.67 L/h |
| Pressure Loss at Q3 | ≤0.063 MPa |
| Maximum Reading | 99 99.999 m³ |




















