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DOR Insertion Paddle Wheel Flowmeter/Monitor

Brand: KOBOLD Instruments, Inc

The KOBOLD DOR series insertion paddle wheel flow sensor is a very cost effective instrument for accurately measuring the flow of water or water-like liquids in large pipes. 

The sensor is inserted into the process piping via a thread-o-let or half nipple fitting. Liquid flow through the pipe results in rotation of the affixed paddle wheel. The rotational speed of the paddle is proportional to the flow velocity, and therefore, proportional to the flowrate in the pipe. 

The insertion type design provides a measuring technique that is much less expensive than full bore flowmeters, especially in larger pipe sizes. Insertion paddle wheel sensors are a robust measuring technology that boasts exceptional tolerance to dirt and solids. 

The DOR series features an all 316 L stainless steel body. The rotor is made of PVDF or PEEK, with a long-life, graphite/ PTFE self-lubricating bearing. 

The DOR has an integral, precision insertion mechanism that allows the installer to insert the rotor to the precise depth in the pipe for optimal readings. Outputs include NPN open collector frequency, and/or reed contact frequency. 

Optional indicators include battery powered totalizers, loop-powered ratemeter/totalizers and batch controllers. The DOR-5 is suitable for "hot tap" installation. With its symmetrical design the DOR may be used for bi-directional flow measurement.

Specifications

Applications

  • Cement Manufacturing
  • Chemical - Process & Cooling Tower Water, Chemical & Water Batching
  • Flow Testing
  • Food Processing
  • HVac - Hot & Chilled Water, Fire System & Thermal Energy Monitoring
  • Irrigation - Water Management
  • Mining
  • Municipal - Water Distribution, Water Management & Water Treatment
  • Pulp & Paper
  • Water Treatment
  • Water Treatment - Chlorination, De-Salination & Mechanical Filtration Plants, Chemical Injection Systems

Approvals & Certifications

  • ATEX
  • Ex

Bearing Material

  • PTFE

BSP Connection

  • 1-1/2” BSPT Male
  • 2” BSPT Male

Cable Entry

  • M20 x 1.5

Cable Length

  • 10 feet (3 metres)

Display

  • 5-Digit LCD
  • 8-Digit LCD

Enclosure, Body Material

  • Stainless Steel

Environmental Protection

  • IP66
  • IP67
  • IP68

Flow Rate

  • 0.25 to 49,000 L/sec
  • 0.3 to 10 m/sec - Flow Velocity

Linearization

  • ± 1.5 %

Materials of Construction

  • 316 Stainless Steel
  • PEEK - Rotor Material
  • PVDF - Rotor Material

Maximum System Pressure

  • psi: 1,160 (kPa: 8,000, bar: 80)

NPT Connection

  • 1/2” NPT
  • 1-1/2” NPT
  • 2” NPT Male

Output

  • 20 mA

Pipe Connection

  • 1-1/2” to 100” Pipe (DN 40 to DN 2500)

Repeatability

  • ± 1 % of Full Scale - at Factory Conditions

Seat / Seal Material

  • Ethylene Propylene (EPR)
  • FPM
  • NBR

Supply Voltage

  • 5-24 Vdc

Temperature Range

  • 150° C (302° F) - Max.
  • -40° to 100° C (-40° to 212° F)

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