Volumetric Water Meter

Midas’ volumetric water meter — also known as rotary piston water meter or liquid sealed volumetric water meter — is a high-accuracy positive displacement meter designed for precise measurement of cold potable water in residential and commercial pipelines. Using a rotary piston mechanism sealed in special liquid, this Class C volumetric water meter maintains excellent accuracy regardless of installation orientation (horizontal, vertical, or inclined) and delivers reliable billing data for DN15–DN20 pipelines.

As a professional ISO 4064 volumetric water meter manufacturer and pulse output volumetric water meter supplier, Midas offers robust domestic volumetric water meter DN15 DN20 solutions with optional pulse output for remote reading and smart metering systems. Our rotary piston liquid sealed water meter combines superior accuracy, low starting flow, and long-term stability for water utilities, property management, and OEM partners worldwide.Get a quote now.

Feature

• Liquid Sealed Register: Special liquid-filled register ensures clear, long-term reading without condensation or fogging.
  

• Rotary Piston Measurement: Positive displacement principle provides high accuracy across a wide flow range with minimal pressure loss.
  

• Orientation Flexibility: Class C volumetric water meter accuracy remains unaffected whether installed horizontally, vertically, or inclined.
  

• Pulse Output Option: Available with 1L/10L/100L or 0.5L per pulse for integration with AMR/AMI systems.
  

• High-Quality Materials: Brass or nylon body with durable components for stable performance and corrosion resistance.
  

• Low Starting Flow & High Sensitivity: Meets ISO 4064 Class C requirements for precise measurement even at very low flow rates.

Volumetric Water Meter

Working Condition:

Water temperature:<50℃ Water pressure:≤1.6Mpa（16bar）

Maximum Permissible Error

in the lower zone from Q1 inclusive up to but excluding Q2 is ±5%.

in the upper zone from Q2 inclusive up to and including Q4 is ±2%

Primary Applications

Our liquid sealed volumetric water meter and domestic volumetric water meter DN15 DN20 are widely used in:

• Residential households for accurate water billing

• Commercial buildings, offices, and hotels

• Apartments and property management metering

• Small industrial or agricultural water monitoring

If you are unsure which configuration best fits your application , please share your process requirements with our engineers for tailored recommendations.

Easy Installation & Maintenance of Rotary Piston Water Meter

1. Install the rotary piston water meter in any orientation (horizontal, vertical, or inclined) with proper pipe alignment.

2. Connect inlet/outlet using standard threaded nipples, nuts, and gaskets.

3. For pulse output models, wire to your AMR system.

4. The liquid sealed register requires virtually no maintenance for clear, long-term reading.

Ready to source high-accuracy volumetric water meters?

Contact us today for rotary piston liquid sealed water meter samples, detailed technical drawings, pulse output configurations, or a personalized quote on Class C volumetric water meter manufacturer solutions. Fast response guaranteed for wholesale and OEM inquiries.

Volumetric Water Meter

A volumetric water meter is a crucial device for accurately measuring the volume of water that passes through a pipeline.

1. Working Principle

Volumetric water meters operate on the principle of directly measuring the volume of water flowing through them. Some common types use positive displacement mechanisms. As water enters the meter, it forces the piston to displace a known volume of water with each stroke. The number of piston strokes is then counted, and by multiplying this count by the volume per stroke, the total volume of water passing through the meter can be determined. Another type is the nutating disc meter, where a disc wobbles in a chamber as water flows. Each complete nutation of the disc corresponds to a fixed volume of water, and the cumulative nutations are measured to calculate the total water volume.

2. Applications

These meters are widely used in various settings. In residential areas, they are installed to measure household water consumption accurately, enabling fair billing for water usage. In commercial buildings like offices, hotels, and factories, volumetric water meters help in monitoring and managing water usage for cost-control and resource-conservation purposes. They are also essential in water treatment plants, where precise measurement of water input and output is necessary for efficient operation and quality control.

3. Advantages

Volumetric water meters offer high accuracy, even at low-flow rates. This makes them reliable for measuring small to large volumes of water with precision. Their positive-displacement nature ensures that they are less affected by changes in water pressure and flow velocity compared to some other types of meters. Additionally, they are relatively simple in design, which often leads to lower maintenance requirements and a longer lifespan.