Paddle wheel Flow meters
 

Flow Meter

Panel Mount Model
Wall Mount Model
 
Integral Mount
          Pipe Mount
 
Features
  • 2 Line Backlit LCD Display

  • Rate of flow, Total flow in separate line

  • Versatile Mounting – Pipe / Wall / Panel / Integral Mounting

  • Programmable Relay Outputs

  • 4-20mA Outputs

  • Suitable for line sizes from ½’’ to 48’’

  • Can be used for clean water –like liquids which may be acidic or alkaline

  • Accurate upto + / - 1% of full scale reading

  • Microprocessor based signal processing

  • Easy on – site re-calibration and programmable cut-off settings

  • Complete elimination of downtime with the addition of wet Tap Valve Assembly

  • Pulsed output for Dosing applications

PRINCIPLE OF OPERATION

Paddle wheel flow meters belong to the category of insertion type flow meters. The rotating paddle wheel generates a signal in proportion to the velocity of the moving fluid, which is read in terms of the flow rate. Because the pipe's cross-sectional area is known and remains fixed the average velocity is an indication of the flow rate.

Specifications

Flow Range

0.5m/sec to 5m/sec
Max.Op.Temperature   

70 deg c
Max.Op.Pressure 

10kg/sq cm

Power Supply

230V ~ AC/24C DC
Pressure Drop  

<0.1 kg/ sq.cm

Material Of Construction

Transducer Housing

POLYPROPYLENE
O-rings   

NEOPRENE                             

Shaft  

SS316/ HASTALLOY C/PVDF
Rotor

PVDF
Maximum %solids   

1% of fluid volume, non-abrasive, non-magnetic,
  <100micron in diameter and length
Max.Viscosity              

1 Cp(water) upto 5Cp above1.5m/sec
Output 

2-Line 16 Character Backlit LCD Display
Register   Rate of flow – m³/hr, Total flow –m³
Standard Cable Length

1.5 mtrs power supply cable for field-mounted versions and 10  mtrs signal transmission cable for panel-mounted versions

Process Connection  

ABS TEE/PP wafer drilled as per BS10 Table E/ANSI B16.5 / SS stub / Glue-on PVC saddle


INSTALLATION FITTINGS

All installation fittings are supplied along with the flow sensor. The sensor my be installed in a ABS TEE / PP wafer drilled as per Bs10 TABLE E OR ANSI B16.5 standards or a Glue –on PVC saddle or a SS stub welded to a MS / SS plate.
Low Cost OEM Model

Features

Indication

Rate of Flow indication only

Model No.

RFI 100T

Panel Cut-out Dim .

90mm * 42mm
Output

1 Line 5 Digit LED Display

Register

Flow Rate - m³/hr

 

ADD –ON FEATURES


RELAY OUTPUT

230 VAC, 1A (Resistive load only) max.with 1NO and 1 NC contact. 1 Or 2 Relay outputs can be given for giving a signal based on flow rate or total flow or both depending upon the requirements.

INTERFACING WITH PLC

An open collector pulse output or a 4-20 mA signal can be provided for interfacing with a PLC or connecting to Recorders.

DOSING APPLICATION

Programmable pulsed output available

THE DOWNTIME ELIMINATOR WET TAP VALVE ASSEMBLY

You can completely eliminate downtime resulting from flow sensor maintenance, with the simple addition of the Wet Tap Valve assembly. Should a sensor, rotor, or O-ring need to be replaced, the wet tap assembly provides a safe and fast method of removing a specially extended sensor from your pipe without system shutdown.