Volumetric Rotary Piston Liquid Filled Plastic Water Meter

APPLICATION

--This series of water meter is used to measure the total quantity of cold potable water which consumed in household or a resident unit, passing through the pipeline.

FEATURES & BENEFITS

-- Volumetric meter, on principle of piston rotation, high accurate measurement;

-- Completely plastic shell, solid and robust design, long service guaranteed;

-- Piston adopts high quality material to ensure stable and durable performance;

-- Register is sealed with a special liquid to keep a clear reading in long term service;

-- Optimum accuracy and performance at all times, in any position;

-- Brass connector for optional;

-- Revolutionary grooved piston for improved, durability and performance;

-- Durable tamperproof construction;

-- Pulse output available providing access to management information;

-- Approvals in over 70 countries.

COMPLIANCE WITH STANDARD

--Technical data conforms to ISO 4064:2005 Standard for any position installation.

--Threaded connections comply with BSP Standard

CONSTRUCTION

--The meter mainly consists of a Plastic lower body, a measuring unit, a register, a upper body, and a lid.

WORKING PRINCIPLE

--The working principle is based on a calibrated chamber of known capacity and a rotary piston activated by the energy of the flow passing through. And the piston rotates while the chamber fills up and empties with a constant volume of water. By counting these cycles, the register indicates the total volume that has been register.

WORKING CONDITIONS

-- Working temperature Class: T30 or T50 for cold water meter

-- Working Pressure Class: MAP10 or MAP16

-- Pressure Loss Class: P63

-- Upstream Disturbance Class: U5

-- Downstream Disturbance Class: U0

ACCESSORIES

-- Every water meter will complete with 2 couplings, 2 nuts, 2 coupling gaskets and 2 spud thread protectors.

MAXIMUM PERMISSIBLE ERROR

-- In the lower zone from Q1 inclusive up to but excluding Q2 is: Cold potable and hot water meter ± 5%.

-- In the upper zone from Q2 inclusive up to and including Q4 is: Cold potable water meter ± 2%.

INSTALLATION REQUIREMENTS

-- Step-1: The meter should be installed in any position with the direction of the flow as indicated by the arrow cast in the meter body.

-- Step-2: Pipeline must be flushed before installation.

-- Step-3: The meter should be constantly full of water during operation.