UtilityPal's 25mm Polymer Piston Water Meter
 
The 25mm ASM Polymer Piston Water Meter is a high-accuracy volumetric meter designed for the measurement of cold potable water in residential, commercial, and light bulk metering applications where higher flow rates are required.
 
Manufactured from UV-stabilised, glass-reinforced polymer, the meter offers excellent durability, corrosion resistance, and long-term accuracy. It is fitted with an internal strainer, spring-loaded non-return valve, and a sealed wet-dial counter with a clear straight-reading display registering in cubic metres (m³).
 
The meter is pulse-ready, making it suitable for AMR / AMI systems and smart water metering platforms.
 
Compliance & Approvals:
Approved to SANS 1529-1: 2019 – Class C
NRCS approved in accordance with:
SANS 1529-1: 2019
Chapter 5 of the Legal Metrology Act, 2014 (Act 9 of 2014)
 
Key Features:
Class C accuracy for reliable measurement over a wide flow range
Meter accuracy not affected by installation angle
Approved for horizontal, vertical, or inclined installation
Pulse prepared (1 pulse per 0.5 litre)
Liquid-filled, sealed 8-digit wet-dial counter
Internal strainer for debris protection
Spring-loaded non-return valve prevents backflow
Grooved piston design for improved performance and durability
No external calibration facility, preventing tampering
Robust, leak-proof construction
Polymer meter body tested up to 4800 kPa
 
Operating Conditions:
Water type: Cold potable water
Operating temperature: 2 °C to 40 °C
Maximum working pressure: 1600 kPa
 
Material & Construction:
Meter body manufactured from specially blended glass-reinforced UV-stabilised polymer
Corrosion-resistant internal components
Materials approved for potable water applications
 
Technical Specifications – 25mm Meter:
Nominal diameter: DN25
Maximum flow rate (Qmax): 7.0 m³/h
Nominal flow rate (Qp): 3.5 m³/h
Transitional flow rate (Qt): 52.5 l/h
Minimum flow rate (Qmin): 35 l/h
Minimum reading: 0.00002 m³
Maximum reading: 9999.99998 m³
 
Dimensions & Connections (25 mm):
Meter body length (L): 260 mm
Connection thread: 25 mm BSP
Meter weight (approx.): ±1.4 kg
 
Typical Applications:
Residential bulk metering
Sectional title and estate developments
Commercial buildings
Light industrial water metering
Smart metering and prepaid water systems
 
*Minimum Order Quantity*:
Minimum order quantity (MOQ): 20 units***
 
Lead Time:
3 - 5 Days.