Multi-jet Dry Type Plastic Water Meter

APPLICATION

This type of water meter is multi-jet dry type water meter with plastic body and used to measure the total quantity of cold potable water which consumed in household or a resident unit, passing through the pipeline.

FEATURES

Multi-jet velocity meters.

Magnetic drive, dry-dial, vacuum sealed register, frost resistant, keeps clean reading for long time.

High sensitivity of measuring accuracy, the starting flow rate of the meter size DN15mm is 8 liters or less.

Selected high quality Nylon materials of new-style nontoxic and pro-environmental for steady, reliable characteristic.

The meter body’s color can be black, blue, yellow and green for option.

The mechanism has 5 digits and 4 pointers, 8 digits and 1 pointer for option.

External/Internal adjustment device, inlet strainer, outlet non-return valve for selecting.

Approvals in over 30 countries.

CONSTRUCTION

The meter mainly consists of a body, a measuring chamber, a indicator unit, a retaining ring with lid. The retaining ring secures the internal parts.

WORKING PRINCIPLE

The water flows through the meter’s strainer and into the measuring chamber where it drives the impeller. A drive magnet transmits the motion of the impeller to a driven magnet located within the sealed indicator. The magnet is connected to a gear train which translates the impeller’s rotation into volume totalization displayed on the register dial face.

COMPLIANCE WITH STANDARD

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

Threaded connections comply with BSP Standard.

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 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 inHORIZONTALposition with the direction of the flow as indicated by the arrow cast in the meter body with the register face upwards.

Step-2: Pipeline must be flushed before installation.

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