Netafim South Africa

ARAD IRT Irrigation Water Meters

Applications

The IRT water meters are specially designed with a free water passage for irrigation metering.

Features

• Negligible head loss

• Simple maintenance

• Field replaceable measuring unit

• Hermetically sealed register with glass lens

• Bearings are constantly flushed during operation to eliminate deposit of solids

• Optional electrical output: EV (Volume)

• 80mm, 100mm and 150mm diameter - EV = 100 litre, 1m³

• 200mm diameter - EV = 100 litre, 1m³, 10m³

• 250mm diameter - EV = 1m³, 10m³

Available sizes

80mm, 100mm, 150mm, 200mm and 250mm

Technical Specifications

• Maximum working pressure: 16 bar standard

• Maximum liquid temperature: 60 degrees Celsius

• Body: cast iron, polyester coated

• Connections: Flange SANS 1123 Table 1600*

Accuracy

• Qmin to Qtransitional = 5%

• Qtransitional to Qmax = 2%

*(ISO / DIN PN16)

Installation

Horizontal, inclined or vertical. For non-horizontal installations the flow direction shall be upwards. Straight pipe sections of the same inside diameter as the water meter shall be installed for accurate reading. The IRT water meter requires a minimum of 10 diameters upstream and 5 diameters downstream of the water meter. The inside diameter of the

flange gaskets connecting the straight pipe sections to the water meter shall be equal to or large than the internal pipe diameter.