Hot Water Meter Sensus DN20


Main Characteristics :

Fully dry dial meter with no gear reduction in the wet chamber

Wear resistant tungsten carbide/sapphire bearing

Magnetic coupling protected against magnetite

Pulse sender safe from interface

Easy to repair construction with external regulation

 

DESCRIPTION

The flow sensors AN 130 are multi-jet dry dial vane impeller hot water meters, suitable for installing in central heating and cooling systems and remote warning systems. With their built-in pulse sender they are approved as low sensors for heating meters according the European measuring instruments directive (MID) 2004/22/EG

Versions for horizontal, rising and falling flow directions with screwings (PN 16) or flanges (horizontal flow, PN 25) are available.

 

TECHNICAL DATA

Display : 00000.000 m³

Working pressure : 16

Working temperature : 10…130℃

Accuracy class : Class 2 or 3

Pulse sender : Reed switch permanently installed

Cable length : 2 m

Load capacity : max.0.1A, max. 28 V

Contact resistance : max 105 Ohm

Pulse value : 10 litres

Casing : Brass, painted

Impeller : Plastic

Impeller Cup : Plastic

Bearing Pin : Tungsten Carbide

Impeller bearing : Sapphire

Magnetic Coupling : Ceramic permanent magnets

 

PERFORMANCE DATA

Nominal size : 1.5

Continuous loading : 1.5 m³/h

Max. Flow rate (short-term) : 3 m³/h

Ratio : 1 : 50

Minimum flow rate : 30 l/h

Pressure loss at : 0.11 bar

Flow rate at 1 bar pressure loss : 4.7 m³/h

 

DIMENSION AND WEIGHTS 

Size marking : 1.5 m³

Nominal Connection size : 20 mm

Installed length : 190 mm

Height : 157

Flange diameter : 105 mm

Width : 95 mm

Weight : 3.5 kg

 

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