WATER METERS

JWU used a variety of 1/2 inch water meter types in the past years ( such as ROLEX, POLEX, SOLONGEN, ANDRIA, PHL, ANISBACH, RAUTER and others), which depend on the water velocity to measure the flow. KENT volumetric water meters are in use at JWU since 1966. They have a great degree of accuracy and ease of maintenance with possibilities of direct reading by the consumers. Also, locally produced [1 and 16] inch meters in diameter were used to facilitate maintenance and avoid difficulties of import from abroad.

METER TECHNOLOGY

Presently, the Undertaking has about 24000 KENT water meters in use, and about 300 Israeli made and other types of meters. KENT water meters are made and imported from the United Kingdom. The meters have proved to be the best and have many technical advantages over the other types. KENT meters have the volumetric Rotary-Piston principle of measurement ensuring a remarkable accuracy of registration even at the very lowest rates of flow. The water flowing through the meter, drives the circular piston in an eccentric path around an accurately machined thermoplastic measuring or working chamber, each revolution representing the transfer of a known quantity of water. The rotary action of the piston is transferred to a dog drive coupling from which it is transmitted to the combined reduction gear and counter unit. The combined counter and gear unit is fully sealed, vacuum filled, with a simple straight-reading presentation.

When KENT meters were compared with other in-use meters, they were found to be more accurate and have a longer lifetime in addition to being easy to dismantle and maintain. KENT Meters have a unique advantage over other meters, they can be mounted either vertically or horizontally with the same efficiency and accuracy.

Table 10 Specifications for KENT Volumetric Water Meters

Test pressure 21.0 kg per sq.cm.
Maximum continuous. flow (test) 2.73 cum per hr
Minimum flow at +/- 2% accuracy 27.7 liter per hr
Minimum registration 3.4 liter per hr

The following diagram illustrates the internal mechanism/components of the KENT water meter: