AMT MJ-W Series Ammete Oil-Sealed Dial Water Meter – Multi-Jet Semi-Liquid Type Water Meter

What is the AMT MJ-W Series Ammete Oil-Sealed Dial Water Meter?

The AMT MJ-W Series is a Multi-Jet Water Meter equipped with Semi-Liquid Sealed Register (oil-sealed dial technology), designed to maintain clear readability over long-term operation and completely eliminate fogging issues commonly found in conventional water meters.

The product is engineered for measuring water flow in residential water supply systems, apartment buildings, commercial buildings, factories, and industrial zones. With high accuracy, superior durability, and stable performance in high-humidity environments, the AMT MJ-W is an ideal choice for projects requiring precise water consumption management.

Key Features of the AMT MJ-W Series Ammete Water Meter

Semi-Liquid Sealed Register Technology

The display unit is protected by a special liquid that provides:

• Complete anti-fogging performance

• Prevention of scale buildup on the dial

• Easy readability under all weather conditions

• Long-term clarity of the glass surface

Multi-Jet Technology

Water is evenly distributed into the measuring chamber, ensuring:

• Improved accuracy

• Reduced errors under variable flow conditions

• Stable operation at both low and high pressure

High Sensitivity to Low Flow Rates

The meter accurately detects and records small flow rates, helping reduce water loss and improve consumption management efficiency.

Excellent Corrosion Resistance

The AMT MJ-W Series is available with multiple body material options:

• Brass

• Engineering Nylon Plastic

• Epoxy-Coated Cast Iron

Meeting various water system requirements.

Stable Operation Performance

The magnetic transmission mechanism provides:

• Reduced mechanical friction

• Extended service life

• Long-term measurement stability

Technical Specifications

General Information

• Model: AMT MJ-W Series Ammete

• Type: Multi-Jet Semi-Liquid Water Meter

• Display Technology: Semi-Liquid Sealed Register

• Accuracy Class: R80 / R100

• Body Material Options: Brass / Nylon Plastic / Epoxy-Coated Cast Iron

• Sizes: DN15, DN20, DN25, DN32, DN40, DN50

Operating Conditions

Cold Water:

• 0°C to 30°C

• 0°C to 50°C

Hot Water:

• 0°C to 90°C

Working Pressure:

• 1.0 MPa

• 1.6 MPa

Pressure Loss:

• △P63

Connection Types

• G Thread

• BSP Thread

• NPT Thread

Pulse Output Options

• 1 Pulse = 1 Liter

• 1 Pulse = 10 Liters

• 1 Pulse = 100 Liters

• 1 Pulse = 1000 Liters

Suitable for systems such as:

• SCADA

• BMS

• IoT platforms

• Remote water consumption monitoring systems

AMT MJ-W Water Meter Size Range

The nominal flow rate (Q3) ranges from 2.5 m³/h to 25 m³/h, meeting most residential and commercial water supply requirements.

Accuracy and Measurement Error

Accuracy Class R80

• Q1 to Q2: ±5%

• Q2 to Q4: ±2%

Accuracy Class R100

Higher sensitivity at low flow rates, suitable for applications requiring precise water consumption management.

Hot Water Meter

• Maximum permissible error: ±3%

Installation Guidelines

To ensure optimal measurement performance:

• Install the meter in a horizontal position

• Ensure the register faces upward

• The water flow direction must match the arrow on the meter body

• Flush the pipeline before installation

• Remove dirt, sand, stones, or foreign objects from the system

Applications

The AMT MJ-W Oil-Sealed Dial Water Meter is widely used in:

• Domestic water supply systems

• High-rise apartment buildings

• Residential communities

• Hotels and resorts

• Shopping centers

• Office buildings

• Manufacturing plants

• Industrial zones

• Urban water supply systems

• Smart water management systems

Why Choose the AMT MJ-W Ammete Water Meter?

✔ Fully anti-fog oil-sealed dial technology
✔ Easy readability in high-humidity environments
✔ High accuracy with Multi-Jet technology
✔ Stable performance across varying flow conditions
✔ Available in brass, plastic, or cast iron body options
✔ Pulse output support for automation systems
✔ Full size range from DN15 to DN50
✔ Long service life and low maintenance cost

The AMT MJ-W Series is a modern water metering solution that provides accurate, stable, and durable flow measurement for residential, commercial, and industrial water supply systems.