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, adoptpiston rotation principle, accurate measurement;

  Especially suit to the area of good water quality;

  Mechanical parts use of high quality materials to ensure a stable characteristic;

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

 No location limitation for installation. The accuracy is not to be affected wherever installed at the horizontal, vertical or inclined pipeline;

 Epoxy coating for surface treatment with a nice looking and for a long life;

  Available with Nylon plastic meter body and brass connector;

  Remote transmission device can be added upon request.

 Plastic meter body adopt the new-style nontoxic plastic material, with solid and robust design, this kind of water meter also available for drinking water, cause of drain hole is a uniquely design to drain off the dirty water.

 Approvals in over 70 countries.

CONSTRUCTION

The meter mainly consists of a copper lower body, a measuring unit, a register, a upper body, a transmission assembly for optional 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.

COMPLIANCE WITH STANDARD

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

Threaded connections comply with BSP Standard

WORKING CONDITIONS

Working temperature Class: T30 or T50 for cold water meter

                                         T90 for hot water meter

Working Pressure Class: 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

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

b)   In the upper zone from Q2 inclusive up to and including Q4 is: Cold potable water meter ± 2%, hot water meter ± 3%

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.

c)      

Step-2: Pipeline must be flushed before installation.

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